The Chempire's problem randomization engine can create an infinite amount of problems for any topic in our Practice section. As a homeowrk assignment, or for review the day before a test, a student could go to Chempire,  answer the specified number of questions or topics, and logout by supplying your email address, which they could find in a searchable database. A detailed email message is then sent to you containing an overall score as well as scores for each individual topic. So a quick 15 minutes of checking if students did their homework each morning can replace hours and hours of grading and recording.

To make use of the Chempire, register yourself as a teacher. Then, your students can sign up using their names and designate you as their teacher. Results of their practice will be  emailed to you.

Please see our About page for information on why the Chempire was made.