PLZ HELP WITH CHEMISTRY i have two questions...
1. A reaction combines 133.484g of lead (II) nitrate with 45.010g of sodium hydroxide
(17.12g of sodium hydroxide make 51.63g of lead hydroxide)
a. how much lead hydroxide is formed?
b. which reactant is limiting? Which is in excess?
c. how much of the excess reactant is left over?
d. if the actual yield of lead hydroxide were 80.002g, what was the % yield?

2.What mass of calcium carbonate would be formes if 248.6g of carbon dioxide were exhaled into limewater. How many grams of calcium would be needed to form that amount of calcium carbonate? Assume 100% yield in each reaction.