Consider the following reaction: 2 Al + 3 CuCl2 → 3 Cu + 2 AlCl3 The reaction begins with 37.93 g of Al and 11.98 g of copper II chloride. A. How much of the excess reactant is left behind (unused)?  B. How many grams of Cu is produced: C. How many grams of AlCl3 is produced:

Combining 0.240 mol Fe2O30.240 mol Fe2O3 with excess carbon produced 10.8 g Fe.10.8 g Fe.   Fe2O3+3C⟶2Fe+3COFe2O3+3C⟶2Fe+3CO   What is the actual yield of iron in moles? What is the theoretical yield of iron in moles? What is the percent yield?

4 NH3(g) + 5 O2(g)  4 NO(g) + 6 H2O(g) In a certain experiment, 3.90 g of NH3 reacts with 4.84 g of O2. a). How many grams of NO form? b). How much of the excess reactant remains after the limiting reactant is completely consumed?

Potassium superoxide, KO2, reacts with carbon dioxide to form potassium carbonate and oxygen:4KO2 + 2CO2 ---> 2K2CO3 + 3O2  This reaction makes potassium superoxide useful in a self-contained breathing apparatus. How much O2 could be produced from 2.43 g of KO2 and 4.58 g of CO2? ___ g