CHEMACTIVITY 5A: COMBINING ELEMENTS
POSSIBLE CLICKER QUESTIONS
After CTQ 5:
1. In comparing different sized samples of a compound, what is always the same?
2. If you double the amount of water in a sample, what doubles?
3. How many carbon atoms are there in one molecule of glucose, C6H12O6?
4. How many oxygen atoms are indicated in the formula for calcium phosphate, Ca3(PO4)2?
5. What is the empirical formula for benzene, C6H6?
21
6. A certain compound has the empirical formula CH2. Which of the following molecular
formulas could it be?