Limiting Reactant and Percent Yield — Unit test Answers

Sodium combines with water to produce sodium hydroxide and hydrogen gas. Which word equation represents this violent reaction?

Consider the equation for the formation of water.2H2 + O2 2H2OWhat is the theoretical yield of H2O if 130 g of H2O is produced from 18 g of H2 and an excess of O2?

This formula equation is unbalanced.BaCl2(aq) + Na2CO3(aq) BaCO3(s) + NaCl(aq) Which coefficient should be placed in front of NaCl to balance this equation?

Which statement best explains the purpose of using a mole in the measurement of matter?

A chemical equation can be used to solve stoichiometry problems provided that it

Which type of reaction is Mg + S → MgS?

What is the relationship between a mole and Avogadro’s number?

The chemical equation below shows the decomposition of ammonium nitrate (NH4NO3).NH4NO3 N2O + 2H2OA chemist who is performing this reaction starts with 160.1 g of NH4NO3. The molar mass of NH4NO3 is 80.03 g/mol; the molar mass of water (H2O) is 18.01 g/mol. What mass, in grams, of H2O is produced?

What is produced during the replacement reaction of Cu(NO3)2 and Zn?