chap 9 chem test

A balanced chemical equation allows one to determine the

A. Mole ratio of any two substances in the reaction

Which coefficients correctly balance the formula NH4NO3 -> N2 + H2O

B. 1,1,2

What is the ratio of the actual yield to the theoretical yield, multiplied by 100%?

B. Percentage yield

For the reaction represented by the equation 2H2 + O2 -> 2H2O, how many miles of water can be produced from 6.0 mol of oxygen?

C. 12 mol

For the reaction represented by the equation Cl2 + 2KBr -> 2KCL + Br2 hoe many grams of potassium chloride can be produced from 300 g each of chlorine and potassium bromide

C. 188 g

For the reaction represented by the equation SO3 + H2O -> H2SO4 how many grams of sulfuric acid can be produced from 200 g of sulfur trioxide and 100g of water

C. 245 g

For the reaction represented by the equation 2HNO3 + Mg(Oh)2 -> Mg(No3)2 + 2H2O how many grams of magnesium nitrate are produced from 8.00 mol of nitric acid, HNO3, and an excess of MF(OH)2

C. 593 g

For the reaction represented by the equation AgNo3 + NaCl -> NaNo3 + AgCl, how many miles of silver chloride,AgCl, are produced from 7.0 mol of silver nitrate AgNo3?

C. 7.0

The haber process for providing ammonia commercially is represented by the equation N2(g) + 3H2(g) -> 2NH3(g). To completely convert 9.0 lol hydrogen gas to ammonia gas, how many moles of nitrogen gas are required?

C.3.0

For the reaction represented by the equation 2H2 + O2 -> 2H2O how many grams of water are produced from 6.0 mol of hydrogen?

D. 108 g

For the reaction represented by the equation SO3 + H2O -> H2SO4 calculate the percentage yield if 500 g of silver trioxide react with the excess water to produce 575 g of sulfuric acid

D. 93.9%

Which reactant controls the amount of product formed in a chemical reaction?

D. Limiting reactant

Which branch of biochemistry deals with the mass relationships of elements in compounds and the mass relationship among reactants and products in chemical reactions?

D. Stoichiometry

In the equation 2KCLO3 -> 2KCL + 3O2 how many miles of oxygen are produced when 3.0 mol of KCLO3 decompose completely

D.4.5

When the formula equation Fe3O4 +Al -> Al2O3 + Fe is correctly balanced the coefficient of Fe is number

D.9