8.1 Practice: Name: _________________________________

Balancing Chemical Equations Date: _______________ Period: 1 2 3 4 5 6

Show all states of matter and other symbols (see page 206 in text) Remember that all acids are aqueous!

1) Water vapor and nitrogen dioxide gas are combined to manufacture ammonia gas (NH₃). A byproduct of this reaction is oxygen gas. Write the balanced chemical equation.

2) Iron can be obtained by heating the naturally occuring ore hematite (iron III oxide) with carbon. The carbon is converted into carbon dioxide gas. Write the balanced chemical equation for this reaction.

3) Granules of zinc oxide will react with hydrochloric acid to form a solution of zinc chloride and water. Write the balanced chemical equation for this reaction.

4) A reaction between copper and nitric acid produces soluble copper II nitrate, nitrogen monoxide, and water. Write the balanced chemical equation for this reaction.

5) Ethane gas, C₂H₆, reacts with oxygen to form carbon dioxide and water vapor. Write the balanced chemical equation for this reaction.

6) Write a balanced chemical reaction for the synthesis of solid potassium bromide from liquid bromine and potassium metal.