Chapter U4.70, Problem 4E

Interpretation Introduction

Interpretation:

The given chemical equations must be matched with their descriptions.

Concept introduction:

A balanced chemical equation gives lots of information regarding the nature of products, usefulness of the reaction, etc.

Answer to Problem 4E

The matching of two columns is given below.

1 matches with E.

2 matches with C.

3 matches with D.

4 matches with A.

5 matches with F.

6 matches with G.

7 matches with B.

Explanation of Solution

1 describes the oxidation of methanol in presence of oxygen to produce formadehyde and water. Thus, it matches with E.

2 describes the dissolving of chloramine in water and thus it matches with C.

3 describes the combustion of octane to produce carbon dioxide and water and thus it matches with D.

4 describes the reaction of sulfuric acid with calcium carbonate to produce calcium sulfate dissolved in water and carbon dioxide gas. Thus, it matches with A.

5 describes the evaporation of liquid mercury to gaseous mercury and thus it matches with F.

6 describes the reduction of unsaturated fatty acid to produce saturated fatty acid and thus it matches with G.

7 describes the reaction of solid calcium oxide with water to produce calcium hydroxide which balances the effect of acid rain when calcium oxide is added to lake water. Thus, it matches with B.