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Chemical Reactions Test Review

Total questions: 37

Worksheet time: 39mins

Name
Class
Date
1.
What type of reaction occurs between an element and a compound?
Zn + 2HCl --> ZnCl2 + H2
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
2.
What kind of reaction is this:
2H2 + O2 --> 2H2O
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
3.
What kind of reaction is this:
2H2O2 →2 H2O + O2
a)
Synthesis
b)
Decomposition
c)
Single Replacement 
d)
Combustion
4.
What kind of reaction is this:
2C3H7OH +9O2 -> 6CO2 + 8H2O
a)
Double Replacement
b)
Combustion
c)
Single Replacement
d)
Decomposition
5.
What kind of reaction is this:
Fe + CuSO4 -> Cu + FeSO4
a)
Double Replacement
b)
Decompostion
c)
Single Replacement
d)
Combustion
6.
The reaction below is an example of?
AgNO3 + NaCl → AgCl + NaNO3
a)
Single Replacement
b)
Double Replacement
c)
Decomposition
d)
Combustion
7.
What kind of reaction is this:
 CaCO3 + Ag2SO4 → CaSO4 + Ag2CO3 
a)
Decomposition
b)
Single Replacement
c)
Double Replacement
d)
Combustion
8.
An element plus additional element reacts to form one product is an example of which type of chemical reaction? 
a)
combustion
b)
decomposition 
c)
synthesis 
d)
single replacement
9.
Which type of reaction takes place in the presence of oxygen and produces carbon dioxide and water?
a)
double replacement 
b)
decomposition 
c)
combustion 
d)
single replacement
10.
Double replacement occurs when___________________ 
a)
two or more substances decompose
b)
one element replaces another element in a compound
c)
the positive ion of one compound replaces the positive ion of the other compound to form new compounds
d)
two or more substances combine to form a new substances
11.
When a substance breaks down into two substances, the chemical reaction taking place is called ______.
a)
Single Displacement
b)
Decomposition
c)
Triple Replacement
d)
Single Composition
12.
What is the main difference between synthesis and decomposition?
a)
One is negative and one is positive
b)
One is being combined into something and one is being broken down into something
c)
One deals with two or more substances and one deals with just one
d)
The both deal with two or more substances
13.
What are the products of this reaction?
Cu+ AgNO3--> 
a)
Cu(NO3)2+Ag
b)
CuNO3 + Ag
c)
CuAg+NO3
d)
Cu+ AgNO3
14.

Predict the products for this reaction

Zn(s) + H2SO4(aq) -->

a)

Zn(SO4)2 + H

b)

ZnSO4 + H2

c)

HZnSO4

d)

Zn2SO4 + H2

15.

Predict the products for this DR reactions

NaOH + Fe(NO3)3 -->

a)

NaFe + OH(NO3)3

b)

NO3Na + Fe(OH)3

c)

Na3NO3 + FeOH

d)

NaNO3 + Fe(OH)3

16.

Write a Balanced Equation for this reaction:

C2H4 + 2 O2 -->

a)

C2O2 + H4

b)

CO2 + O2

c)

CO + H2

d)

CO2 + H2O

17.
Predict the products for the this reaction:
K + HCl --> 
a)
KCl + H2
b)
KHCl 
c)
KH + Cl2
d)
KCl + H
18.

Predict the products for the this reaction:

Cu + MgCl2 -->

a)

MgCl2 + Cu

b)

no reaction

c)

MgCu + Cl2

d)

CuCl2 + Mg

19.

Predict the products for the this reaction:

AgNO3 + KCl -->

a)

AgCl (s) + KNO3 (aq)

b)

AgK (s)+ ClNO3 (aq)

c)

AgNO3 (aq) + KCl (aq)

d)

AgCl (aq) + KNO3 (s)

20.

What happens when lead is placed in copper nitrate?

a)

nothing because copper is more reactive than lead

b)

The copper attaches itself to the lead.

c)

The lead disappears.

d)

It explodes.

21.

Which of these metals will react with an acid?


*hint acids start with H*

a)

Silver

b)

Copper

c)

Lead

22.

Which metal below is the most reactive?

a)

Zinc

b)

Copper

c)

Magnesium

d)

Silver

23.
NH4NO3
a)
soluble
b)
insoluble
24.
What is the precipitate formed when you mix silver nitrate with copper chloride?
a)
copper nitrate
b)
copper chloride
c)
silver chloride
d)
silver nitrate
25.

What is the name of the precipitate formed in the reaction of Potassium phosphate and aluminum nitrate

a)

aluminum nitrate

b)

aluminum phosphate

c)

no precipitate is formed

d)

potassium nitrate

26.

a new solid that forms as a result of a chemical reaction ___

a)

is a reactant

b)

is soluble

c)

is a precipitate

d)

dissolves in water

27.

What happens when you mix an acid with a base?

a)

it stays an acid

b)

it stays a base

c)

neutralization occurs and forms water and a salt

28.

All base formulas end in

a)

H

b)

OH

c)

any ending - it doesn't matter

d)

H2O

29.

An acid on the pH scale would have a pH of

a)

between 0-6

b)

7

c)

between 7-14

d)

anywhere on the pH scale. There is not set place for acids.

30.

What is considered neutral on the pH scale?

a)

between 0-6

b)

7

c)

between 7-14

d)

anywhere on the pH scale. There is not set place for acids.

31.

What is HCl?

a)

Acid

b)

Base

c)

Salt

d)

None of the above

32.

What are the products in a chemical equation?

a)

shorthand showing the changes taking place in a chemical reaction (what is going on)

b)

The starting substance(s) in a chemical reaction (what goes in/left side)

c)

The new substance(s) that are formed in a chemical reaction (what goes out/right side)

d)

shorthand used to show how chemicals bond together

33.
Is this equation balanced?
a)
yes
b)
no
c)
Not enough information
34.
Balance this equation
_Al +_HCl --> _H2 +_AlCl3
a)
2, 6, 3, 2
b)
it is already balanced
c)
4, 12, 3, 4
d)
2, 1, 4, 5
35.
Balance this equation-
__P4 + __O2 --> __P2O3
a)
it is already balanced
b)
2, 1, 3
c)
1, 2, 3
d)
1, 3, 2
36.
Balance this equation.
_CH4 + _O2 --> _CO2 + _H2O
a)
1,2,1,1
b)
2,1,2,1
c)
1,2,1,2
d)
0,2,0,2
37.
Balance this equation.
_Mg + _Cl2 --> _MgCl2
a)
1, 2,1
b)
already balanced
c)
2,1,1
d)
1,1,2

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