Mini-Quiz: Basics of Chemistry

1. What is chemistry primarily concerned about?

   How to create new elements from existing elementsSorry, not correct. Try another button. How and why materials combine or separate to form different substancesThat is correct. You are becoming a Champion. Why chemicals change colors when heatedGood try, but not right. Select another answer.

2. What model of the atom is used in these lessons?

   Mathematical modelSorry, not correct. Try another button. Electron cloud modelOops! Wrong answer. Re-read the question and try again. Solar system modelCorrect. You are a genius.

3. What is the main thing that determines chemical reactions?

   The outer electronsThat is correct. You are becoming a Champion. Compounds and moleculesGood try, but not right. Select another answer. Chemical reactionsSorry, not correct. Try another button.

Pick an answer to see instant feedback. Re-read the lesson if you miss one.