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Unit 6 review

Total questions: 53

Worksheet time: 3hrs 34mins

Name
Class
Date
1.

If an element is diatomic it should have a subscript of___

a)

1, always

b)

2, only when it is an element

c)

it shouldn't have a subscript, it should have a coefficent

d)

2, when bonded in a compound

2.

What is the charge of Iron in this compound. (Hint: think swap drop method):

Fe3(PO4)2

a)

3+

b)

2+

c)

1+

d)

6+

3.

Fill in the blank. (Copper has a charge of 2+)

Cu+ AgNO3 → Ag + _____

a)

Cu(NO3)2

b)

CuNO3

c)

CuAg

d)

Cu

4.

Predict the products of this synthesis reaction: H2 + Cl2 →

a)

HCl

b)

H2Cl2

c)

H2Cl

d)

HCl2

5.

What type of reaction is this?

2 C6H14 + 19 O2 → 12 CO2 + 14 H2O

a)

Single Replacement

b)

Double Replacement

c)

Combustion

d)

Decomposition

6.

Predict the products for the this Single Replacement reaction:

K + HCl →

a)

KCl + H2

b)

KHCl

c)

KH + Cl2

d)

HCl + K2

7.

Predict the products for the this Double Replacement reaction:

AgNO3 + KCl →

a)

AgCl + KNO3

b)

AgK + ClNO3

c)

KAg + NO3Cl

d)

AgCl + 3 KNO

8.

Predict the product of this synthesis reaction:

Al + S₈ →

a)

AlS

b)

AlS8

c)

Al2S

d)

Al2S3

9.

Predict the products for the decomposition of aluminum oxide, Al2O3 →

a)

Al + O2

b)

O + Al2

c)

Al2 + O3

d)

Al + O

10.

Predict the products for the this Single Replacement reaction: (Copper has a charge of 1+)

Mg + CuCl →

a)

MgCl2 + Cu

b)

Mg + Cu

c)

MgCu + Cl2

d)

MgCl + Cu2

11.

What are the products of this reaction:

C2H4 + O2 →

a)

C2O2 + H4

b)

CO2 + H2 + O2

c)

CO + H

d)

CO2 + H2O

12.

Predict the products of this single replacement reaction: Na + H2O →

a)

NaO + H2

b)

NaOH + H2

c)

NaH + O2

d)

ONaH

13.

Fill in the blank. (Copper has a charge of +2)

Cu+ AgNO3--> Ag + _____

a)

Cu(NO3)2

b)

CuNO3

c)

CuAg

d)

Cu

14.

Predict the products for this equation.

(Zn with a charge of +2)

Zn + H2SO4 -->

a)

Zn(SO4)2 + H

b)

ZnSO4 + H2

c)

ZnSO4 + H4

15.

Complete the balanced equation for this Double Replacement reaction.

3 NaOH + Fe(NO3)3 -->

a)

NaFe + OH(NO3)3

b)

2NaNO3

c)

3 NaNO3 + Fe(OH)3

16.

Predict the products for the this Single Replacement reaction:

K + HCl -->

a)

KCl + H2

b)

KHCl

c)

KH + Cl2

17.

Predict the products for the this Double Replacement reaction:

AgNO3 + KCl -->

a)

AgCl + KNO3

b)

AgK + ClNO3

c)

KAg + NO3Cl

18.

If an element is diatomic it should have a subscript of___

a)

1, always

b)

2, only when it is by itself

c)

it shouldn't have a subscript, it should have a coefficent

19.

What is the charge of Iron in this compound. (Hint: think criss cross method):

Fe3(PO4)2

a)

+3

b)

+2

c)

+1

20.

When predicting a double replacement reaction we use the__________ ________ to help us determine if a solid is produced or not

a)

Activity series

b)

Solubility Chart

c)

Periodic Table

21.

What is the name for the solid formed during a reaction?

a)

Precipitate

b)

Rocks

c)

Aqueous

22.

Is the following substance soluble or insoluble?

NaNO3

a)

Soluble

b)

Insoluble

23.
What type of reaction is this? 
NaOH + MgSO3 -->
Mg(OH)2 + Na2SO3
a)
Single Replacement
b)
Double Replacement
c)
Combustion
d)
Synthesis
24.
What type of reaction is this? 
C2H4 + O2 --> 
CO2 + H2O
a)
Combustion
b)
Double Replacement
c)
Single Replacement
d)
Decomposition 
25.
What type of reaction is this? 
Li + Mg(NO3)2 -->
LiNO3 + Mg
a)
Combustion
b)
Double Replacement
c)
Synthesis
d)
Single Replacement
26.
Write a balanced equation for this DR reaction
KOH(aq) + H3PO4(aq) --> 
a)
K3PO4 + 3HOH
b)
KH3 + OHPO4
c)
NR
d)
KPO4 + H3OH
27.

What are the correct formulas and coefficients for the products of the following CSR?

Mg + Al(OH)3 →

a)

No Reaction

b)

Al + Mg(OH)3

c)

Al + Mg(OH)2

d)

MgAl + (OH)3

28.

What type of chemical reaction is this one?

Al(OH)3 --> Al2O3 + H2O

a)

Decomposition

b)

Combustion

c)

Synthesis

d)

Single Replacement

29.

What are the products of the reaction: MgCO3 ->?

a)

MgCO3 + O2

b)

MgO + O2

c)

MgO+ CO2

d)

MgC + O2

30.
What kind of reaction is this:
4Fe  +  3O2 →   2Fe2O3 
a)
Synthesis
b)
Decomposition
c)
Single Replacement 
d)
Double Replacement
31.
What kind of reaction is this:
Fe + CuSO4 -> Cu + FeSO4
a)
Double Replacement
b)
Decompostion
c)
Single Replacement
d)
Combustion
32.
in a reaction, aqueous barium chloride reacts with aqueous potassium carbonate to produce solid barium carbonate and aqueous potassium chloride. what is the correct balanced equation.
a)
Ba2Cl(aq) + KCO3(aq) --> BaCO3(s) + KCl(aq)
b)
BaCl2(aq) + K2CO3(aq) --> BaCO3(s) + 2KCl(aq)
c)
BaCl(aq) + K2CO3(aq) --> BaCO3(s) + K2Cl(aq)
d)
Ba2Cl2(aq) + KCO3(aq) --> Ba2CO3(s) + KCl2(aq)
33.
 Predict the product(s):  H2O -->
a)
H and O
b)
H2 and O2
c)
H and OH
34.
When balancing equations a ____ can be placed to the left of a formula of a substance to make the equations balanced
a)
charge
b)
subscript
c)
random number
d)
coefficient
35.
Classify
FeS + HCl → H2S + FeCl2
a)
synthesis
b)
combustion
c)
single replacement
d)
double replacement
36.
What kind of reaction is this:
2C3H7OH +9O2 -> 6CO2 + 8H2O
a)
Double Replacement
b)
Combustion
c)
Single Replacement
d)
Decomposition
37.
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
38.
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
39.
Which type of reaction can be recognized by the general pattern?
A + BC--> AC + B
a)
Decomposition
b)
Combustion
c)
Single Replacement
d)
Double Replacement
40.
Which of the following general formulas represents a single-displacement reaction?
a)
AB → A + B   
b)
A + B → AB
c)
A + BC → AC + B
d)
AB + CD → AD + CB
41.
The formula AB → A+B represents what type of chemical reaction?
a)
synthesis
b)
decomposition
c)
single displacement
d)
double replacement
42.

In a combustion reaction, one of the reactants is ____.

a)

carbon

b)

oxygen

c)

hydrogen

d)

nitrogen

43.

The equation H3PO4 + 3KOH --> K3PO4 + 3H2O is an example of which type of reaction?

a)

combustion

b)

decomposition

c)

single replacement

d)

double replacement

e)

synthesis

44.
One reactant into several products.
a)
Decomposition
b)
Synthesis
c)
Combustion
d)
Single Replacement
45.
Always starts with a Hydrocarbon that reacts with oxygen and produces carbon dioxide and water. 
a)
Decomposition
b)
Synthesis
c)
Combustion
d)
Single Replacement
46.
Ions in two compounds switch. 
a)
Synthesis
b)
Combustion
c)
Single Replacement
d)
Double Replacement
47.
Which of the following is a product of the equation:

Cl2  +  KBr  => 
a)
BrCl
b)
K2
c)
KCl
48.
Which of the following is a product of the equation:

AgNO3  +  MgCl2  => 
a)
AgMg
b)
NO3Cl2
c)
MgNO3
d)
Mg2NO3
49.
Which of the following is a product of the equation:

 CaO  +  S  => 
a)
SO
b)
CaOS
c)
O
d)
O2
50.
Which of the following is a product of the equation: HINT: Balance the charges in the ionic compounds!

  MgSO4  +  NaCl   => 
a)
MgCl2
b)
NaMg
c)
NaSO4
d)
MgCl
51.
Which of the following is a product of the equation: HINT: Balance the charges in the ionic compounds!

   K  +  N2  => 
a)
KN
b)
K2N
c)
K3N
d)
KN3
52.
Which of the following is a product of the reaction: 
CuCl2 + H2S => 
a)
Cu
b)
SCl2
c)
HCl
53.
Which of the following is a product of the reaction and BALANCED: 
H2SO4 + KOH  => 
a)
2 H2O 
b)
2 K2SO4
c)
H2O 
d)
KH2

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