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Chemistry in Action Review (Part 2)

Total questions: 26

Worksheet time: 32mins

Name
Class
Date
1.
Balance this equation.
_CH4 + _O--> _CO+ _H2O
a)
1,2,1,1
b)
2,1,2,1
c)
1,2,1,2
d)
0,2,0,2
2.

What type of chemical reaction is the following: A + B -> AB?

a)

Synthesis reaction

b)

Decomposition reaction

c)

Combustion reaction

d)

Single displacement reaction

3.

What type of chemical reaction is the following: AB -> A + B?

a)

Synthesis reaction

b)

Single replacement reaction

c)

Combustion reaction

d)

Decomposition reaction

4.

What type of chemical reaction is the following: C3H8 + O2 -> CO2 + H2O?

a)

Single displacement reaction

b)

Decomposition reaction

c)

Combustion reaction

d)

Synthesis reaction

5.

What type of chemical reaction is the following: Mg + 2HCl -> MgCl2 + H2?

a)

Decomposition reaction

b)

Single displacement or single replacement reaction

c)

Double displacement reaction

d)

Combustion reaction

6.

What type of chemical reaction is the following: AgNO3 + NaCl -> AgCl + NaNO3?

a)

Double displacement reaction

b)

Synthesis reaction

c)

Decomposition reaction

d)

Combustion reaction

7.

In a combustion reaction, what are the typical reactants and products?

a)

Hydrogen and oxygen as reactants, carbon monoxide and nitrogen as products

b)

Carbon and nitrogen as reactants, oxygen and water as products

c)

Fuel and oxygen as reactants, carbon dioxide, water, and heat as products

d)

Nitrogen and hydrogen as reactants, methane and sulfur dioxide as products

8.

In a synthesis reaction, what are the typical reactants and products?

a)

One complex substance

b)

Only gases

c)

Two or more simple substances

d)

Only liquids

9.

In a single displacement reaction, what are the typical reactants and products?

a)

Two compounds as reactants and two elements as products

b)

A metal and a non-metal as reactants and a metal and a non-metal as products

c)

A more reactive element and a compound as reactants, and a new compound and a free element as products.

d)

A compound and a mixture as reactants and a new compound and a new mixture as products

10.

What type of chemical reaction is the following: 2H2 + O2 -> 2H2O?

a)

Combustion reaction

b)

Decomposition reaction

c)

Synthesis reaction

d)

Single displacement reaction

11.

What type of chemical reaction is the following: 2K + Cl2 -> 2KCl?

a)

Decomposition reaction

b)

Synthesis reaction

c)

Combustion reaction

d)

Double displacement reaction

12.

What type of chemical reaction is the following: 2Na + Cl2 -> 2NaCl?

a)

Single displacement reaction

b)

Double displacement reaction

c)

Synthesis reaction

d)

Combustion reaction

13.

Blood has a pH of approx. 7.4. How would blood be classified?

a)

Strong acid

b)

Weak acid

c)

Strong base

d)

Weak base

14.

Which is the correct set of acid properties:

a)

sour taste, corrosive, change litmus from red to blue

b)

sour taste, corrosive, change litmus from blue to red

c)

sweet taste, slippery, change litmus from blue to red

d)

sour taste, slippery, change litmus from blue to red

15.

Neutral solutions have a pH of:

a)

0

b)

1

c)

7

d)

14

16.

NaOH may be found in drain cleaners and as a component of soaps. Is NaOH an acid or a base?

a)

Acid

b)

Base

c)

Neither (Neutral)

17.

The pH scale is a range from:

a)

1-7

b)

0-14

c)

1-5

d)

1-14

18.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
19.

Which property is not associated with acids?

a)

Sour taste

b)

strong acids can burn you

c)

turns litmus paper blue

d)

reacts with metals

20.

This ion is responsible for the properties of acids

a)

Sodium ion

b)

Hydrogen ion

c)

Hydroxide ion

d)

Oxide ion

21.
A neutralization reaction will (almost) always produce...
a)
water & salt
b)
water
c)
salt
d)
water & carbon
22.
Identify the salt in the following equation:
Zn(OH)2 + HNO3   ---> H2O  + Zn(NO3)2
a)
Zn(OH)2
b)
HNO3
c)
H2O
d)
Zn(NO3)2
23.

Complete the following reaction:

HCl + Mg(OH)2 -->

a)

MgCl2 + H2O

b)

Mg +H2O

c)

MgCl2 + H2

d)

MgCl2 + H2O + CO2

24.
Ca(OH)is an example of a(n)
a)
Acid
b)
Base
c)
Neutral
25.
HBr is an example of a(n)
a)
Acid
b)
Base
c)
Neutral
26.
Balance this equation.
_SnO+_H2-->_Sn +_H2O
a)
1,1,2,1
b)
1,2,1,1
c)
1,2,1,2
d)
1,2,2,1