Mai-Thy NguyenStephens 8th

Chemistry Chapter 8 Section Review

Section 8.1

1. Describe the differences between word equations, formula

equations and chemical equations.

Chemical equation is a balanced formula equation.

2. Write the word and formula equation for the reaction in which

aqueous solutions of sulfuric acid and sodium hydroxide react to form

aqueous sodium sulfate and water.

Sulfuric Acid+Sodium Hydroxide->Sodium Sulfate+Water

H2SO +NAOH->NA4SO +H2O

3. Translate the following chemical equations into sentences:

a) 2K(s)+2H2O(l)->2KOH(aq)+H2(g)

Solid Potassium and Water yields Aquaeous Potassium

Hydroxide and Hydrogen

b) 2Fe(s)+3Cl (g)->2FeCl3(s)

Solid Iron and chlorine gas yields solid iron(iii).chloride

4. Write the word, formula and equation for the reaction between

hydrogen sulfide gas and oxygen gas that produces sulfur dioxide gas

and water vapor:

Hydrogen sulfide gas and oxygen yields sulfur dioxide gas and

water vaper

2H2S(g)+3O ->2SO2(g)+2H2O(g)

5. Write the chemical equation for each of the following reaction:

a) ammonium chloride + calcium hydroxide->calcium

chloride+ammonia+water

2NH4Cl+Ca(OH) ->CaCl2+2NH +2H2O

b) hexane+oxygen->carbon dioxide+water

2H2S(g)+3O2->2SO2(g)+2H2O(g)

Section 8.2

1. List 5 types of chemical reactions.

synthesis, decomposition, single replacement, double replacement

and combustion

2. Classify each of the following reactions as synthesis,

decomposition, single replacement, double replacement, or

combustion:

a) N2(g)+3H2(g)->NH3(g):Synthesis

b)

c)

d)

e)

Mai-Thy NguyenStephens 8th

f)

g)

3. For each of the following reactions, identify the missing reactants

or products and then balance the resulting equation. Note that each

empty slot may require one or more substances.

a)

b)

c)

d)

e)

4. For each of the following reactions, write the missing product and

then balance the resulting equation. Identify each reaction.

a)

b)

c)

Section 8.3

1. How is the activity series useful in predicting chemical behavior?

If you were to know the activity series then you can somewhat know

how it will react in a chemical reaction.

2. Based on the activity series, predict whether each of the following

possible reactions listed will occur.

a)

b)

c)

d)

e)

3. For each of the reactions in idem 2 that will occur, write the

products and balance the equation.