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3,503.) Yelena's question is
no comments
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Was posted on - Wednesday, December 04, 2002 at 13:43:07 (EST)
3,499.) Lyndal's question is
Why does a metallic cake pan get cold when sprayed with cooking spray. Cooking spray ingredients - canola oil and lecithin. Propellant - hydrocarbon
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Was posted on - Thursday, November 28, 2002 at 22:48:19 (EST)
3,496.) Lyndal Bowron's question is
I cannot comment as yet as I have not had any service to respond to. I entered this site via another and so cannot comment on the site set up.
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Was posted on - Thursday, November 28, 2002 at 22:42:57 (EST)
3,486.) Kathryn's question is
When they use fractional distillation to separate crude oil, what kinds of wastes are produced
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Was posted on - Saturday, November 23, 2002 at 17:01:41 (EST)
3,485.) Kathryn's question is
This is a cool site.
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Was posted on - Saturday, November 23, 2002 at 17:00:11 (EST)
3,481.) Craig's question is
Wicked
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Was posted on - Thursday, November 21, 2002 at 08:33:03 (EST)
3,477.) Anna's question is
how do you give out when doin word equation the name of the product after giving out an metal
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Was posted on - Tuesday, November 19, 2002 at 14:59:48 (EST)
3,475.) Sarah's question is
umm, i need my question answered
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Was posted on - Tuesday, November 19, 2002 at 10:19:49 (EST)
3,473.) Hailey's question is
Is cynide fatal if swallowed accidently?
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Was posted on - Monday, November 18, 2002 at 15:15:04 (EST)
3,471.) Hailey's question is
When can I get my answer.
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Was posted on - Monday, November 18, 2002 at 15:12:12 (EST)
3,468.) Angie's question is
na
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Was posted on - Sunday, November 17, 2002 at 22:43:47 (EST)
3,465.) peisi's question is
it's really informative and useful. keep it up!
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Was posted on - Sunday, November 17, 2002 at 11:30:01 (EST)
3,460.) briony's question is
When heptane is burned completely in oxygen the energy released is 4800kj/mol the activation energy is 350kj/mol. How would you draw an energy profile for this and what would be the balanced equation and energy released from this complete combustion?
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Was posted on - Friday, November 15, 2002 at 21:33:00 (EST)
3,458.) bub's question is
if you had 10g of carbon dioxide and wanted to fix that to glucose how much energy would you need to do so?
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Was posted on - Friday, November 15, 2002 at 18:15:55 (EST)
3,456.) Bri's question is
i'll let you know when i get back to you
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Was posted on - Friday, November 15, 2002 at 18:12:53 (EST)
3,454.) Veranica's question is
How do you get from grams to atoms, "passing" through moles, in an equation?
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Was posted on - Friday, November 15, 2002 at 14:34:24 (EST)
3,445.) mhazzy's question is
no comment
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Was posted on - Sunday, November 10, 2002 at 02:10:04 (EST)
3,443.) Mike Last's question is
What are the bond angles of acetaminophen?
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Was posted on - Saturday, November 09, 2002 at 18:57:52 (EST)
3,432.) Andrea's question is
What are the latin name for the elements?
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Was posted on - Friday, November 01, 2002 at 12:46:48 (EST)
3,426.) tasha's question is
i like this ideal
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Was posted on - Saturday, October 26, 2002 at 21:34:34 (EDT)
3,424.) Stephanie's question is
Nice site
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Was posted on - Thursday, October 24, 2002 at 20:35:33 (EDT)
3,422.) bradely's question is
how can i split sault up into its two elements
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Was posted on - Wednesday, October 23, 2002 at 20:56:11 (EDT)
3,420.) Bradely's question is
i hope i get the answer im looking for
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Was posted on - Wednesday, October 23, 2002 at 20:50:54 (EDT)
3,418.) tia's question is
How many moles are in a can soda.
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Was posted on - Tuesday, October 22, 2002 at 23:00:42 (EDT)
3,414.) pat's question is
chemistry is hard
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Was posted on - Monday, October 21, 2002 at 16:02:26 (EDT)
3,411.) Kelli Samuel's question is
I need info on balancing formulas
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Was posted on - Friday, October 18, 2002 at 15:30:54 (EDT)
3,407.) mark's question is
ARE ALL FOUR HYDROGEN ATOOMS IN C3H4 ARE IN THE SAME PLANE?IF NOT, WHAWT IS THEIER SPATIAL RELATIONSHIP?
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Was posted on - Friday, October 18, 2002 at 12:54:27 (EDT)
3,400.) Noor's question is
i would like to know which chemical/substances are soluble and insoluble.. thank u :)
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Was posted on - Monday, October 14, 2002 at 02:30:01 (EDT)
3,398.) Becky 's question is
is it possible for an SN1 and SN2 reaction to occur simultaneously?
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Was posted on - Sunday, October 13, 2002 at 23:24:40 (EDT)
3,396.) Ashley's question is
What household item contains sodium bi-carbonate?
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Was posted on - Sunday, October 13, 2002 at 20:01:42 (EDT)
3,393.) Gemma Bate's question is
Name three types of rock that undergo chemical weathering
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Was posted on - Sunday, October 13, 2002 at 13:21:55 (EDT)
3,392.) Gemma Bate's question is
hi
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Was posted on - Sunday, October 13, 2002 at 13:20:23 (EDT)
3,386.) rushank baweja's question is
this is a brilliant concept!
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Was posted on - Friday, October 11, 2002 at 07:37:55 (EDT)
3,384.) M. GHAFOUR's question is
PLEASE HELP FIND AN ANSWER FOR THIS QUESTION
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Was posted on - Thursday, October 10, 2002 at 21:07:50 (EDT)
3,381.) AJ's question is
On the book The Wonderful Flight To The Mushroom Planet, I found the word tetramethylbenzacarbonethylene, What does it means?
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Was posted on - Wednesday, October 09, 2002 at 20:19:11 (EDT)
3,379.) Marisol's question is
The hydrogen atom emission spectrum contains a line at wave length 121.6 nm which transition gives rise to this line. I need to know how to work this problem
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Was posted on - Wednesday, October 09, 2002 at 20:10:25 (EDT)
3,378.) Marisol's question is
good
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Was posted on - Wednesday, October 09, 2002 at 20:10:03 (EDT)
3,375.) Michelle Mulvey's question is
how do you set up a specific gravity prblem?
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Was posted on - Tuesday, October 08, 2002 at 17:48:20 (EDT)
3,373.) bernice's question is
can you answer my question please? thank you
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Was posted on - Monday, October 07, 2002 at 22:10:39 (EDT)
3,368.) jillie's question is
help me please i need it
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Was posted on - Saturday, October 05, 2002 at 15:01:58 (EDT)
3,367.) jillie's question is
thanks for your help
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Was posted on - Saturday, October 05, 2002 at 15:00:27 (EDT)
3,364.) Thin's question is
hlep me ASAP!
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Was posted on - Friday, October 04, 2002 at 14:36:59 (EDT)
3,358.) Jonathan's question is
Names of gases that combine to form solids
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Was posted on - Sunday, September 29, 2002 at 21:33:39 (EDT)
3,353.) Irma LOu Yano 's question is
I leaqrn many things from here.
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Was posted on - Friday, September 27, 2002 at 04:16:31 (EDT)
3,351.) Irma Lou Yano's question is
It help me in my assignments.
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Was posted on - Friday, September 27, 2002 at 04:08:34 (EDT)
3,349.) Irma Luo Yano's question is
This really give easy and good time to study my lessons.
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Was posted on - Friday, September 27, 2002 at 03:56:21 (EDT)
3,345.) Katie Wilson's question is
§~!!!!!!HELP!!!!!!~§
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Was posted on - Wednesday, September 25, 2002 at 09:43:59 (EDT)
3,344.) Katie Wilson's question is
~!!!!!!HELP!!!!!!~§
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Was posted on - Wednesday, September 25, 2002 at 09:42:10 (EDT)
3,339.) nida 's question is
what is carbon mono oxide and what are its side affect?
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Was posted on - Sunday, September 22, 2002 at 22:43:25 (EDT)
3,338.) nida 's question is
good
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Was posted on - Sunday, September 22, 2002 at 22:41:38 (EDT)
3,334.) tamara's question is
i ned help
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Was posted on - Thursday, September 19, 2002 at 23:57:15 (EDT)
3,332.) Will's question is
In an SN1 reaction, is BR a better leaving group than Cl and if so why/why not? In an SN2 reaction which would be more favorable (react faster) 2-chlorobutane or 2-bromobutane
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Was posted on - Thursday, September 19, 2002 at 08:43:45 (EDT)
3,329.) Anthony Daniels's question is
My question is, is it possible to seperate the salt compound of solidum and cloride and if so can you explain or tell me some liteuretary that you got your answer form. Thank You Very Much.
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Was posted on - Wednesday, September 18, 2002 at 15:58:33 (EDT)
3,323.) Cassandra's question is
This is a great site and very helpful towards research
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Was posted on - Wednesday, September 11, 2002 at 22:09:51 (EDT)
3,320.) Meagan's question is
What's the actual difference between the units used to express the densities of gases and those used to express the densities of solids or liquids?
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Was posted on - Tuesday, September 10, 2002 at 21:44:55 (EDT)
3,318.) Leah 's question is
How do I determine relative and absolute error when calculating density?
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Was posted on - Saturday, September 07, 2002 at 18:21:39 (EDT)
3,316.) jessica's question is
uhm....ok whatever just help me please i need to go to college
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Was posted on - Thursday, September 05, 2002 at 21:07:52 (EDT)
3,312.) Ian Anderson's question is
Excellent Web Page
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Was posted on - Tuesday, September 03, 2002 at 11:36:27 (EDT)
3,310.) Megan's question is
I need help with finding what is an atom and what is a molecule...please help me...
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Was posted on - Monday, September 02, 2002 at 21:48:55 (EDT)
3,305.) Shaq's question is
very helpful web site ta muchly
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Was posted on - Tuesday, August 27, 2002 at 19:22:37 (EDT)
3,303.) Emily's question is
This is a very convenient and helpful site.
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Was posted on - Tuesday, August 27, 2002 at 17:23:38 (EDT)
3,298.) mARLON FRAUSTO's question is
Where can I find info from the development of the table of elements
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Was posted on - Wednesday, August 21, 2002 at 22:06:47 (EDT)
3,296.) marlon frausto's question is
COOL
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Was posted on - Wednesday, August 21, 2002 at 22:03:43 (EDT)
3,294.) luis 's question is
why is a variable placed in an experament?
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Was posted on - Wednesday, August 21, 2002 at 17:14:45 (EDT)
3,293.) luis 's question is
physical science
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Was posted on - Wednesday, August 21, 2002 at 17:13:38 (EDT)
3,292.) luis 's question is
physical science
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Was posted on - Wednesday, August 21, 2002 at 17:13:37 (EDT)
3,289.) dawn's question is
Is bromoform miscible with water?? with cyclhexane??
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Was posted on - Monday, August 12, 2002 at 17:05:08 (EDT)
3,287.) sarah's question is
Is this a reaction I should be worried about?
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Was posted on - Saturday, August 10, 2002 at 20:03:53 (EDT)
3,284.) JO's question is
Can anyone tell me what the compound CH2O is? Thanks.
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Was posted on - Tuesday, July 30, 2002 at 13:37:40 (EDT)
3,282.) Jo's question is
Cool Site
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Was posted on - Tuesday, July 30, 2002 at 13:35:38 (EDT)
3,280.) shauna's question is
this is an awesome site and it offers a lot of info! thanks heaps!
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Was posted on - Wednesday, July 24, 2002 at 03:55:53 (EDT)
3,274.) William Lee 's question is
Thanks for reading and helping out with my problem. And please forgive me for my terrible english. I don't learn chemistry in english in school.
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Was posted on - Friday, July 19, 2002 at 04:26:54 (EDT)
3,272.) Henry Capasso's question is
From which end of a carbon chain do I begin counting in order to put the correct number on an NH2 (amine).
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Was posted on - Thursday, July 18, 2002 at 09:35:15 (EDT)
3,271.) Henry Capasso's question is
Thank you for this web site. I am a 1st year chem. student studying towards my Masters in Nutrition.
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Was posted on - Thursday, July 18, 2002 at 09:34:05 (EDT)
3,268.) Ezonarere's question is
explain the history of carbon.
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Was posted on - Saturday, July 06, 2002 at 15:54:19 (EDT)
3,267.) Ezonarere's question is
explain the history of carbon.
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Was posted on - Saturday, July 06, 2002 at 15:25:51 (EDT)
3,265.) Maddy's question is
I need help with precipitates... adding, subtracting... i don't know!! Help Me
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Was posted on - Wednesday, July 03, 2002 at 06:45:54 (EDT)
3,261.) daphnee deyanez's question is
differentiate, with examples, between ores, minerals and metals
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Was posted on - Monday, June 10, 2002 at 05:23:05 (EDT)
3,255.) Elizabeth Ridings's question is
Great!!
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Was posted on - Monday, June 03, 2002 at 17:07:00 (EDT)
3,251.) Daniel Ferrari's question is
this is a great site!
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Was posted on - Saturday, June 01, 2002 at 23:10:44 (EDT)
3,246.) Katie Niven 's question is
ow do you determine the mass of a piece of magnesium with out using a balance to wiegh it/
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Was posted on - Wednesday, May 29, 2002 at 09:59:47 (EDT)
3,244.) Katie 's question is
This site is very helpful
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Was posted on - Wednesday, May 29, 2002 at 09:57:49 (EDT)
3,239.) Cecilia's question is
Why the nonmetal has low ionization as go down the group?
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Was posted on - Friday, May 24, 2002 at 23:12:27 (EDT)
3,236.) Emily 's question is
I think this website is very helpful..
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Was posted on - Friday, May 24, 2002 at 15:29:01 (EDT)
3,229.) Jenevieve Caballero's question is
None at all. It was great having you guys help me through my homework.
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Was posted on - Tuesday, May 21, 2002 at 04:31:37 (EDT)
3,225.) Liz's question is
needs more info.
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Was posted on - Thursday, May 16, 2002 at 01:31:42 (EDT)
3,222.) Laura Tanner's question is
hi
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Was posted on - Wednesday, May 15, 2002 at 19:35:19 (EDT)
3,219.) Mamie Dupre''s question is
How would i solve a problem like if a mole of dollars is divided into 6 billion people what would my share be?
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Was posted on - Sunday, May 12, 2002 at 22:19:21 (EDT)
3,215.) kayte's question is
I need some help with an assignment I'm doing in chemistry
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Was posted on - Sunday, May 12, 2002 at 05:28:53 (EDT)
3,211.) Connie's question is
When was chemistry called alchemy?
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Was posted on - Saturday, May 11, 2002 at 22:08:07 (EDT)
3,209.) Michelle's question is
hi, I've got an assignment about the history of chemistry. Please help and answer my question. Thank you
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Was posted on - Saturday, May 11, 2002 at 22:05:57 (EDT)
3,203.) Jeff's question is
What is a reason for a less than 100% yield in a reaction?
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Was posted on - Wednesday, May 08, 2002 at 22:00:08 (EDT)
3,200.) Eddie Fausett's question is
None at this time.
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Was posted on - Sunday, May 05, 2002 at 16:48:20 (EDT)
3,196.) angela's question is
I was given the following problems as a challenge. Can anyone tell me how to go about solving them? 1. You are given a 1.5mg sample of solid WO3 with the instruction that you are to remove ALL the oxygen via a reduction reaction leading to the formation of W and H2O. How many cubic centimeters of H2 at 28 degrees Celsius and 751 torr will you need? 2. A lecture hall contains 12 rows of seats. If a professor releases laughing gas (N2O) from the front of the room, and tear gas (C6H11OBr) simultaneously from the back of the room, in which row of seats are students apt to start laughing and crying simultaneously? 3. You are given the assignment of supplying an astronaut with oxygen gas for 24 hours from a solid source. He will need a lungful of O2 (350 cubic centimeters at a pressure of 150 torr and a temperature of 37 degrees Celsius) every six seconds. You decide to get the oxygen from cesium superoxide Cs2CO3, by the reaction ______CsO2 + ______CO2---->______Cs2CO3+_____O2. How many grams of CsO2 do you need to synthesize for the job? If anyone could help, I'd be eternally grateful. Thanks
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Was posted on - Tuesday, April 30, 2002 at 22:54:43 (EDT)
3,192.) manda's question is
I need to know what the tincture process is.
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Was posted on - Sunday, April 28, 2002 at 19:05:05 (EDT)
3,182.) Erica Griggs's question is
Physical Chemistry- Quantum Mechanics I could really use some help on this one!
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Was posted on - Sunday, April 21, 2002 at 22:44:01 (EDT)
3,180.) Umer's question is
i like now about it.
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Was posted on - Friday, April 19, 2002 at 23:50:55 (EDT)
3,176.) torri's question is
this site is great
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Was posted on - Tuesday, April 16, 2002 at 19:43:53 (EDT)
3,173.) holly's question is
i am in desprate need of help and i need answers quickly. My family isnt very talented in the science department and our whole class is expected to have info on this by tomorrow or thursday so please do your best to help, thanks alot Holly xxx
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Was posted on - Tuesday, April 16, 2002 at 14:53:22 (EDT)
3,170.) Sophie's question is
none
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Was posted on - Monday, April 15, 2002 at 01:19:19 (EDT)
3,166.) Charles Brown's question is
n/a
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Was posted on - Saturday, April 13, 2002 at 00:55:42 (EDT)
3,164.) Charles Brown's question is
none
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Was posted on - Saturday, April 13, 2002 at 00:53:03 (EDT)
3,162.) Charles Brown's question is
none
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Was posted on - Saturday, April 13, 2002 at 00:50:37 (EDT)
3,160.) Charles Brown's question is
none
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Was posted on - Saturday, April 13, 2002 at 00:47:29 (EDT)
3,158.) Charles Brown's question is
none
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Was posted on - Saturday, April 13, 2002 at 00:44:27 (EDT)
3,155.) Charles Brown's question is
great help
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Was posted on - Saturday, April 13, 2002 at 00:39:28 (EDT)
3,153.) Charles Brown's question is
Why is NH3 soluble in wter but C6H6 is not
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Was posted on - Saturday, April 13, 2002 at 00:11:26 (EDT)
3,150.) Charles Brown's question is
Very help please try and keep the site going
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Was posted on - Saturday, April 13, 2002 at 00:05:33 (EDT)
3,147.) Karolina Salazar's question is
none
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Was posted on - Friday, April 12, 2002 at 13:56:07 (EDT)
3,144.) Ebony Evans's question is
This website is a God send because I sooo need help in chemistry!!!
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Was posted on - Thursday, April 11, 2002 at 09:08:26 (EDT)
3,141.) Nicholas Evans's question is
What is the difference between Concentrated and Dilute acids?
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Was posted on - Thursday, April 04, 2002 at 19:23:08 (EST)
3,139.) Nicholas Evans's question is
great site
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Was posted on - Thursday, April 04, 2002 at 19:20:53 (EST)
3,133.) Jeremy's question is
I really am good at algebra
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Was posted on - Thursday, March 28, 2002 at 14:36:48 (EST)
3,130.) christine's question is
what is the shape of CH3-? is that a trigonal planar?
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Was posted on - Thursday, March 28, 2002 at 03:20:14 (EST)
3,126.) David's question is
How better to learn than to have a question and answer site!
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Was posted on - Tuesday, March 26, 2002 at 09:28:57 (EST)
3,122.) Emily's question is
You really haven't helped me yet
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Was posted on - Monday, March 25, 2002 at 18:51:55 (EST)
3,118.) bridgid's question is
what are the connections between the periodic table, electron configuration and chemical behavior?
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Was posted on - Wednesday, March 20, 2002 at 21:23:24 (EST)
3,116.) bridgid's question is
I LOVE CHEMISTRY :-P
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Was posted on - Wednesday, March 20, 2002 at 21:15:44 (EST)
3,111.) Jessie's question is
i was wondering what is the chemistry involved in making a pregnacy test pos or negative?
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Was posted on - Wednesday, March 20, 2002 at 10:23:37 (EST)
3,108.) Nay's question is
Really informative
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Was posted on - Wednesday, March 20, 2002 at 08:08:14 (EST)
3,105.) Juliet's question is
How do you combine formula, such as Sodium and Nitrate?
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Was posted on - Tuesday, March 19, 2002 at 18:46:32 (EST)
3,100.) cossy's question is
What are the effects when Calcium Chloride and Sodium Hydroxide mix
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Was posted on - Monday, March 18, 2002 at 07:16:17 (EST)
3,098.) adrianna's question is
how does soap and cleaners work? I am in the fourth grade and am doing an experiment on which carpet cleaners work the best. I need to find some research to explain what makes them work. Please help!
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Was posted on - Sunday, March 17, 2002 at 17:25:18 (EST)
3,095.) Sam's question is
I have done an investigation on strong and weak dibasic and monobasic weak acids (that is four acids) and their reactions with magnesium. I used ethanedioic acid as my weak dibasic acid (although I know it is better considered a medium acid). I found that the reaction with magnesium was second order with respect to the ethanedioic acid. I have been trying to find a possible mechanism (not necessarily THE mechanism) for this reaction without any luck. I would greatly appreciate any suggestions.
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Was posted on - Sunday, March 17, 2002 at 04:37:08 (EST)
3,092.) caitlan's question is
How many liters of ammonia gas can be formed from the reaction of 150. L of hydrogen gas, assuming that there is complete reaction of hydrogen with excess nitrogen gas, and that all measurements are made at the same temperature and pressure?
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Was posted on - Thursday, March 14, 2002 at 01:07:29 (EST)
3,090.) Caitlan 's question is
i need help
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Was posted on - Thursday, March 14, 2002 at 01:05:20 (EST)
3,087.) Emily's question is
Why does it take so long for a glass of water to evaporate, while it takes a cloth absorbed in the same amount of water a matter of hours to evaporate?
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Was posted on - Wednesday, March 13, 2002 at 12:18:50 (EST)
3,084.) Rhenda Furry 's question is
i need help in chemistry i don't understand it
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Was posted on - Tuesday, March 12, 2002 at 10:21:20 (EST)
3,080.) Joyce's question is
not bad
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Was posted on - Sunday, March 10, 2002 at 02:40:55 (EST)
3,077.) danielle's question is
hope this site works
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Was posted on - Thursday, March 07, 2002 at 19:18:42 (EST)
3,073.) es's question is
s
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Was posted on - Thursday, March 07, 2002 at 18:51:14 (EST)
3,070.) kylie gaunt's question is
this is a very helpful website!!!!!
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Was posted on - Wednesday, March 06, 2002 at 04:51:09 (EST)
3,068.) courtney's question is
In the electrolysis of water 75.0mL of oxygen gas are produced. How many mL of hydrogen gas are produced at STP? I really dont understand how to work the problem out Please Help!
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Was posted on - Tuesday, March 05, 2002 at 21:06:25 (EST)
3,066.) vanna's question is
Seawater is approximately 0.5M each in Na+ and Cl-. By evaporation NaCl can be precipitated from this solution. If 1.00x10^2 Liters of seawater is evaporated at what volume will the first solid appear? (Ksp=6.2) Please help me solve this!!! send me an email with the set-up at rainbowxbrite81@aol.com if at all possible, thanks!!!
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Was posted on - Sunday, March 03, 2002 at 23:29:58 (EST)
3,064.) Vanna's question is
Seawater is approximately 0.5M each in Na+ and Cl-. By evaporation NaCl can be precipitated from this solution. If 1.00x10^2 Liters of seawater is evaporated at what volume will the first solid appear? (Ksp=6.2)
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Was posted on - Sunday, March 03, 2002 at 23:26:08 (EST)
3,061.) Jack's question is
no .
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Was posted on - Saturday, March 02, 2002 at 02:23:55 (EST)
3,058.) John Toms's question is
Please can anyone answer my question. I need it for a project and I cant find what it is.
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Was posted on - Wednesday, February 27, 2002 at 20:22:47 (EST)
3,048.) jess oakley's question is
hope you can help
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Was posted on - Tuesday, February 26, 2002 at 15:03:00 (EST)
3,045.) Drea's question is
What is the chemistry of stain removers (or more specifically carpet cleaners)? For example what are the reactions between the carpet cleaner and the dirt?
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Was posted on - Monday, February 25, 2002 at 11:39:34 (EST)
3,044.) Drea's question is
Hopefully this website can help me out, I've been researching my question, but haven't been able to find much info...
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Was posted on - Monday, February 25, 2002 at 11:37:39 (EST)
3,041.) ashley's question is
thank you
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Was posted on - Sunday, February 24, 2002 at 15:29:06 (EST)
3,035.) julia(bezhig)littlewolf's question is
native pride 4-life hey to all the native peepz
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Was posted on - Tuesday, February 19, 2002 at 15:38:27 (EST)
3,033.) Chelsea's question is
This site helps!
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Was posted on - Sunday, February 17, 2002 at 19:03:32 (EST)
3,031.) Kanwal 's question is
how many molecules are there in 96 grams of oxygen? how am i suppose to know what type of formula i am using for this problem?
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Was posted on - Saturday, February 16, 2002 at 19:45:08 (EST)
3,029.) Kanwal's question is
how many molecules are there in 96 grams of oxygen? how am i suppose to know what type of formula i am using for this problem?
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Was posted on - Saturday, February 16, 2002 at 19:42:33 (EST)
3,028.) sarah's question is
i would like to learn chemistry since im having problems learning it in school
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Was posted on - Saturday, February 16, 2002 at 19:40:24 (EST)
3,019.) Ramon Garcia 's question is
need help?
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Was posted on - Tuesday, February 12, 2002 at 21:35:31 (EST)
3,013.) kt's question is
i am having trouble fiding a separation process for KNO3 , Fe, and CaCO3 to figure out the % composition can n e one help plzzz??
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Was posted on - Monday, February 11, 2002 at 00:11:08 (EST)
3,010.) zack hehmann's question is
very interesting
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Was posted on - Sunday, February 10, 2002 at 14:26:54 (EST)
3,006.) Kelz's question is
Please help me i need this class to graduste and our teacher gave us this 8 page paper to do today and we have a test on it tomorrow...
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Was posted on - Thursday, February 07, 2002 at 19:42:42 (EST)
2,983.) Hayley Gardiner's question is
interesting
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Was posted on - Wednesday, January 30, 2002 at 03:52:14 (EST)
2,979.) Michael Shelton's question is
I NEED HELP WITH CHEMISTRY!!!!!!!!!!!!! AND ALG. 2
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Was posted on - Monday, January 28, 2002 at 20:58:26 (EST)
2,966.) Oscar's question is
I hope this works i really need help understanding this work.
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Was posted on - Wednesday, January 23, 2002 at 12:50:47 (EST)
2,956.) Ryan's question is
how do you calculate and set up the equation for molarity?
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Was posted on - Thursday, January 17, 2002 at 00:50:18 (EST)
2,955.) Ryan's question is
hi
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Was posted on - Thursday, January 17, 2002 at 00:49:08 (EST)
2,943.) anna's question is
great site
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Was posted on - Sunday, January 13, 2002 at 15:21:50 (EST)
2,935.) christine's question is
how do you determine the equilibrium constant if you are given the K a?
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Was posted on - Thursday, January 10, 2002 at 22:12:21 (EST)
2,931.) christine's question is
good site!
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Was posted on - Thursday, January 10, 2002 at 22:10:56 (EST)
2,929.) April's question is
How do you classify chemical reactions?
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Was posted on - Thursday, January 10, 2002 at 19:45:47 (EST)
2,927.) jamie 's question is
i love this site
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Was posted on - Thursday, January 10, 2002 at 19:30:44 (EST)
2,924.) mike's question is
please anwser q
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Was posted on - Tuesday, January 08, 2002 at 21:50:29 (EST)
2,923.) mike's question is
please anwser q
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Was posted on - Tuesday, January 08, 2002 at 21:50:14 (EST)
2,913.) Natasha Garza's question is
I Need help finding the mass in grma if 4.5*10622 molecules of arsenic triflouride, AsF3. i have to use the Gram formula mass and Avogadro's number. Thanks
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Was posted on - Tuesday, January 08, 2002 at 20:12:58 (EST)
2,912.) Tasha's question is
thank you
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Was posted on - Tuesday, January 08, 2002 at 20:09:57 (EST)
2,906.) Tanya's question is
If you earn $200/week and work 50 weeks/yr, how long wil it take to get 1 mole of pennies?
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Was posted on - Monday, January 07, 2002 at 20:31:55 (EST)
2,904.) Tanya's question is
This is a great website..thanks for the help!
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Was posted on - Monday, January 07, 2002 at 20:24:41 (EST)
2,897.) Erica's question is
How many nanometers are in 1 meter?
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Was posted on - Wednesday, January 02, 2002 at 22:17:10 (EST)
2,896.) Erica's question is
Whoever started this site is a miracle worker, and I appreciate all the hard work they have invested in this site.
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Was posted on - Wednesday, January 02, 2002 at 22:14:31 (EST)
2,892.) Jonathan's question is
If the density of a substance is 4.8g/cm3 at a particular temperature is 0.96g/cm3, what is the specific gravity of the substance at that temperature?
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Was posted on - Wednesday, January 02, 2002 at 12:26:44 (EST)
2,889.) luke 's question is
-NONE-
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Was posted on - Tuesday, January 01, 2002 at 16:59:50 (EST)
2,881.) Tommy Castronova's question is
This is a very good site
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Was posted on - Wednesday, December 19, 2001 at 15:04:26 (EST)
2,878.) Rob Templon's question is
none
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Was posted on - Tuesday, December 18, 2001 at 16:08:06 (EST)
2,876.) Theresa Casey 's question is
Thank you
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Was posted on - Sunday, December 16, 2001 at 17:11:38 (EST)
2,872.) Kelly Alvarez 's question is
thank you to anyone who can help me with this I am drowning in a sea of bonding lol
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Was posted on - Sunday, December 16, 2001 at 17:09:14 (EST)
2,869.) Donald Doucette's question is
my question is an effort to save money because the product is so costly to get rid of.
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Was posted on - Friday, December 14, 2001 at 23:14:26 (EST)
2,868.) Donald Doucette's question is
my question is an effort to save money because the product is so costly to get rid of.
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Was posted on - Friday, December 14, 2001 at 22:35:25 (EST)
2,865.) Nick Marshall's question is
If a compound's molecular formula mass is less than it's empirical formula mass is it possible to identify the compoun's molecular formula if you know the empirical formula?
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Was posted on - Thursday, December 13, 2001 at 20:17:05 (EST)
2,862.) Nick Marshall's question is
great site!
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Was posted on - Thursday, December 13, 2001 at 20:15:20 (EST)
2,852.) Annabelle Goode's question is
Help!!
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Was posted on - Sunday, December 09, 2001 at 19:13:29 (EST)
2,847.) amanda's question is
What's the net energy released by burning a mole of acetylene?
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Was posted on - Sunday, December 09, 2001 at 15:43:56 (EST)
2,844.) Amy's question is
Answer me!
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Was posted on - Sunday, December 09, 2001 at 13:06:00 (EST)
2,841.) Unaiza's question is
Hi, Would u plz tell me that how much of calcium sulfate(plaster of paris) is produced anually n how much does it cost? Thanx! Bye.
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Was posted on - Sunday, December 09, 2001 at 06:58:08 (EST)
2,838.) molly's question is
what effects heating curves? what effects the heating curve of vanilla extract?
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Was posted on - Saturday, December 08, 2001 at 11:29:09 (EST)
2,836.) molly's question is
good stuff
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Was posted on - Saturday, December 08, 2001 at 11:26:28 (EST)
2,833.) Jay's question is