1. Stoichiometry Quiz Please take a card from the front
02/16/2016

2. In every chemical reaction, ____.
mass and molecules are conserved
mass and atoms are conserved
moles and liters are conserved
moles and molecules are conserved
In the reaction 2CO(g) + O2 (g)  2CO2 (g), what is the ratio of moles of oxygen used to moles of CO2 produced?
a. 1:1 c. 1:2
b. 2:1 d. 2:2
How many moles of aluminum are needed to react completely with 1.2 mol of FeO?
2Al(s) + 3FeO(s) 3Fe(s) + Al2O3 (s)
a. 1.2 mol c. 1.6 mol
b. 0.8 mol d. 2.4 mol

3. a. mole ratio c. theoretical yield b. percentage yield d. actual yield
1. What is the measured amount of a product obtained from a chemical reaction?
a. mole ratio c. theoretical yield
b. percentage yield d. actual yield
2. What is the study of the mass relationships of elements in compounds?
a. reaction stoichiometry c. percentage yield
b. composition stoichiometry d. Avogadro's principle
3. How many grams of CO are needed to react with an excess of Fe2O3 to produce g Fe?
Fe2O3 (s) + 3CO(g) 3CO2 (g) + 2Fe(s)