Question

based on the following chemical equation

HCN+O2 yields N2+CO2+H20

identify the limiting reactants and the mass of N2 produced when 100.0g of HCN react with 100.0g of O2.

a. the limiting reactant is HCN and 25.9g of N2 are produced
b. the limiting reactant is O2 and 35.0g of N2 are produced
c. the limiting reactant is HCN and 51.8g of N2 are produced
d. both reactants are consumed completely

Answer 1

Here is a worked example of how to solve limiting reagent problems. Just follow the steps.
http://www.jiskha.com/science/chemistry/limiting_reagent_problem.html

Answer 2

Got it....thanks Dr Bob