38
CHEMACTIVITY 8A: PANCAKES AND MOLECULES
POSSIBLE CLICKER QUESTIONS
After CTQ 5:
1. A BLT sandwich is made from four slices of bacon, two slices of tomato, two slices of bread,
and a piece of lettuce. If you have 10 pieces of bread, how many sandwiches can you make?
2. A BLT sandwich is made from four slices of bacon, two slices of tomato, two slices of bread,
and a piece of lettuce. If you have 20 slices of bacon, how many slices of tomato do you
need?
3. If 10 moles of H2 burn in air, how many moles of water will form?
4. Which of the following is not an appropriate conversion factor for the following reaction?
2H2(g) + O2(g) 2H2O(g)
5. The coefficients in a chemical reaction can be used to convert directly from
a. grams reactant to grams product
39
6. What is the first step to determine how many grams of CO2 is produced when 53.2 g
C6H12O6(s) burns according to
C6H12O6(s) + 6O2(g) 6H2O(l) + 6CO2(g)
7. What are the steps to calculate the mass of a product that can be formed from a certain
mass of a reactant?
8. How much N2 is consumed when 4.75 g of H2 reacts to form NH3?
3H2(g) + N2(g) 2NH3(g)