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Unit 5: Concept 1 & 2 Review

Total questions: 20

Worksheet time: 5hrs 0mins

Name
Class
Date
1.

Classify the following chemical reaction:


NH3 + HCl  → NH4Cl

a)
Synthesis
b)
Decomposition
c)

Single Replacement

d)

Double Replacement

2.

Classify the following chemical reaction:


PbCl2 + AgNO3 → Pb(NO3)2 + AgCl

a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
3.

Classify the following chemical reaction:


Al(OH)3 → Al2O3  + H2O

a)
Decomposition
b)
Combustion
c)
Synthesis
d)
Single Replacement 
4.

Classify the following chemical reaction:

C4H12 + O2 → CO2 + H2O

a)

Single Replacement

b)
Combustion
c)

Neutralization

5.

Analyze the chemical equation and select the correct description

a)

Aluminum bromide solution reacts with potassium sulfate solution to produce solid potassium bromide and aqueous aluminum sulfate.

b)

Aluminum bromide powder reacts with aqueous potassium sulfate to produce potassium bromide solution and aqueous aluminum sulfate.

c)

Aqueous aluminum bromide reacts with potassium sulfate powder to produce aqueous potassium bromide and solid aluminum sulfate.

d)

Aqueous aluminum bromide reacts with aqueous potassium sulfate to produce potassium bromide solution and aqueous aluminum sulfate.

6.
A neutralization reaction will (almost) always produce...
a)
water & salt
b)

water & hydrocarbon

c)

water & acid

d)

water & base

7.

Which of the compounds in this chemical reaction is a "salt" ?


Zn(OH)2 + HNO3  → H2O  + Zn(NO3)2

a)

Zinc hydroxide

b)

Nitric acid

c)

Dihydrogen monoxide

d)

Zinc nitrate

8.

Hydrochloric acid reacts with magnesium hydroxide

Complete the following reaction:

HCl + Mg(OH)2

a)

MgCl2 + H2O

b)

Mg + H2O

c)

MgCl2 + H2

d)

MgCl2 + H2O + CO2

9.

A substance that makes H+ ions when dissolved in water



(a)  

10.

A substance that makes OH- ions when dissolved in water



(a)  

11.

An insoluble solid that forms from the ions of two aqueous compounds in a chemical reaction



(a)  

12.

The term used to describe a compound made of carbon and hydrogen

(a)  

13.

In an activity series, elements can replace any element below them but NOT above them.

a)

True

b)

False

14.

The decomposition of a substance by an electric current



(a)  

15.

A change in a substance that doesn’t change its identity

Ex. Boiling, melting

a)

Chemical change

b)

Physical change

16.

A change of a substance into another substance; when a chemical reaction occurs

Ex. Oxidizing, fermenting

a)

Chemical change

b)

Physical change

17.

Reacting particles must collide with enough force in order for a chemical reaction to occur

a)

Atomic theory

b)

Attraction theory

c)

Collision theory

d)

Reactive theory

18.

[ ? ] are used to balance equations

a)

Subscripts

b)

Coefficients

c)

Oxidation numbers

d)

Exponents

19.

What is the missing coefficient [ ? ] that would balance this chemical equation?

(a)  

20.

What is the missing coefficient [ ? ] that would balance this chemical equation?

(a)