wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Classification of Chemical Reactions Comprehensive Review

Total questions: 66

Worksheet time: 2hrs 12mins

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 criss cross method):

Fe3(PO4)2

a)

3+

b)

2+

c)

1+

d)

6+

3.

The symbol for a substance dissolved in solution is ______

a)

(s)

b)

(l)

c)

(aq)

d)

(g)

4.

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

Cu+ AgNO3 → Ag + _____

a)

Cu(NO3)2

b)

CuNO3

c)

CuAg

d)

Cu

5.

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

a)

HCl

b)

H2Cl2

c)

H2Cl

d)

HCl2

6.

What type of reaction is this?

2 C6H14 + 19 O2 → 12 CO2 + 14 H2O

a)

Single Replacement

b)

Double Replacement

c)

Combustion

d)

Decomposition

7.

Predict the products for the this Single Replacement reaction:

K + HCl →

a)

KCl + H2

b)

KHCl

c)

KH + Cl2

d)

HCl + K2

8.

Predict the products for the this Double Replacement reaction:

AgNO3 + KCl →

a)

AgCl + KNO3

b)

AgK + ClNO3

c)

KAg + NO3Cl

d)

AgCl + 3 KNO

9.

Complete the balanced equation for this Double Replacement reaction.

3 NaOH + Fe(NO3)3 →

a)

NaFe + OH(NO3)3

b)

NaNO3 + Fe(OH)3

c)

3 NaNO3 + Fe(OH)3

d)

3 NaFe + 3 (OH)NO3

10.

Predict the product of this synthesis reaction:

Al + S₈ →

a)

AlS

b)

AlS8

c)

Al2S

d)

Al2S3

11.

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

a)

Al + O2

b)

O + Al2

c)

Al2 + O3

d)

Al + O

12.

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

13.

What are the products of this reaction:

C2H4 + O2 →

a)

C2O2 + H4

b)

CO2 + H2 + O2

c)

CO + H

d)

CO2 + H2O

14.

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

a)

NaO + H2

b)

NaOH + H2

c)

NaH + O2

d)

ONaH

15.

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

16.
Translate the following word equation: 
Liquid nitrogen and oxygen gas combine to form nitrogen monoxide gas. 
a)
N + O → NO
b)
N2 + O2 → N2O2
c)
N2(l) + O2(g) → NO(g)
d)
N(l) + O2(g) → NO(g)
17.
Aqueous means...
a)
dissolved in water/solution
b)
water
c)
liquid
d)
plasma
18.
Mass cannot be ____ or _____.
a)
made, changed
b)
created, destroyed
c)
rearranged, unmade
d)
stagnant, unchanging
19.
Balance the following equation:
____MgO + ____H2O → ____Mg(OH)2
a)
1,1,1
b)
1,2,2
c)
2,3,4
d)
2,2,2
20.
What type of reaction is the following:
CH4 + O2 → CO2 + 2H2O
a)
double replacement
b)
single replacement 
c)
combustion
d)
synthesis
21.
A precipitate is...
a)
a solid that falls out of a liquid solution
b)
a reactant in a reaction
c)
a clear substance
d)
the mass of a product
22.
Which type of reaction requires the activity series?
a)
synthesis
b)
decomposition
c)
single replacement
d)
double replacement and single replacement
23.
Which is the name of the kind of solid substance formed in this figure?  
a)
aqueous 
b)
precipitate
c)
acid
d)
synthesis 
24.
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
25.
Which of the following compounds will not disassociate in water? 
a)
NaCl
b)
PbCl2
c)
MgNO3
d)
Na2SO4
26.
Describes the number of molecules in a compound and is used to balance a chemical reaction. 
a)
coefficient 
b)
subscript
c)
superscript
d)
SI unit
27.
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
28.
Provides evidence that a chemical reaction has occurred. 
a)
dissolving 
b)
melting
c)
formation of a gas
d)
bending
29.
What is the probable product of a double-replacement reaction?
a)
A new compound and a replaced metal
b)
A new compound and a replaced nonmetal
c)
2 different compounds 1 aqueous and 1 that is a solid, liquid or gas
d)
A single compound
30.
Which reaction between halogens and halide salts will occur?
a)
F2(g)  +  FeI2(aq) → FeF2(aq)  +  I2 (g)
b)
Cl2(g) + SrF2(aq)  → SrCl2(aq)  +  F2(g)  
c)
I2(g)  + MgBr2(aq)  → MnI2(aq)  + Br2(g)
d)
Br2(l)  +  CoCl2(aq) → CoBr2(aq)  +  Cl2(g)
31.
A compound is reacted and forms two new substances. What type of reaction is this? 
a)
combustion 
b)
synthesis 
c)
decomposition 
d)
single replacement 
32.
Describes the number of atoms in a compound of each element. 
a)
coefficient 
b)
superscript 
c)
subscript 
d)
SI unit 
33.
The word oxidation describes 
a)
gain of electrons
b)
loss of electrons 
c)
number of electrons remains the same
d)
number of electrons transfered
34.
The word reduction describes 
a)
gain of electrons 
b)
loss of electrons 
c)
number of electrons remains the same
d)
transfer of electrons
35.
What are the correct coefficients when this equation is balanced?
KClO3  --> KCl  +  O2
a)
2,2,2
b)
2,2,3
c)
1,2,3
d)
3,3,3
36.
Which half reaction shows the element being reduced.  In the following reaction. 
2Na   +   Cl2  --> 2NaCl
a)
Na0   --> Na+1   +   1e-
b)
Cl20  +  2e-  --> 2Cl-
c)
Na0  +  1e- --> Na+1  
d)
Cl20 --> 2Cl-  + 2e-
37.
Potassium iodide is a catalyst in a chemical reaction where would this be placed when writing the chemical reaction? 
a)
product side
b)
reactant side
c)
above the arrow
d)
left out 
38.
A metal is reacted with an acid to produce a salt and a hydrogen gas. What type of reaction has occurred? 
a)
neutralization 
b)
double replacement 
c)
single replacement 
d)
synthesis 
39.
What is the left part of a chemical equation called?
H2 + O → H2O
a)
Reactants
b)
Products 
c)
Yields 
d)
Chemical Equation 
40.

Balance this reaction:

____ Na3PO4 + ____ KOH ---> ____ NaOH + ____ K3PO4

a)

1,3,3,1

b)

1,3,2,1

c)

2,3,3,1

d)

1,1,3,1

41.
Which is NOT an indication of a chemical change?
a)
temperature change
b)
formation of a precipitate
c)
shape change
d)
production of light
42.

What is the correct way of representing hydrogen gas alone, in a reaction?

a)

2H

b)

H

c)

H2

43.

To predict if a single replacement reaction will take place you should use the____________ __________

a)

Activity series

b)

Solubility Chart

c)

Periodic Table

44.

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

45.

Is the following substance soluble or insoluble?

NaNO3

a)

Soluble

b)

Insoluble

46.
KBr
a)
Soluble
b)
Insoluble
47.
Zinc Hydroxide
a)
Soluble 
b)
Insoluble
48.
Silver Iodide
a)
Soluble 
b)
Insoluble 
49.
Zinc Carbonate
a)
Soluble 
b)
Insoluble 
50.
KOH
a)
Soluble 
b)
Insoluble
51.
Silver acetate
a)
Soluble 
b)
Insoluble
52.
NiCl2
a)
Soluble 
b)
Insoluble
53.
PbI2
a)
Soluble
b)
Insoluble
54.
NaC2H3O2
a)
soluble
b)
insoluble
55.
K2CO3
a)
soluble
b)
insoluble
56.
CaCO3
a)
soluble
b)
insoluble
57.
BaSO4
a)
soluble
b)
insoluble
58.
Ca(OH)2
a)
soluble
b)
insoluble
59.
FeS
a)
soluble
b)
insoluble
60.

You can make a solute dissolve more quickly in a solvent by

a)

adding more solute.

b)

adding ice.

c)

heating the solvent.

d)

removing some solvent.

61.

A solution that contains all of the solute it can hold at a given temperature is

a)

diluted.

b)

saturated.

c)

supersaturated.

d)

unsaturated.

62.

The amount of solute that can be dissolved in a specific amount of solvent at a given temperature is its

a)

concentration.

b)

density.

c)

dilution.

d)

solubility.

63.

Three 10 g samples of sugar are represented below.


Sample A dissolves in water more slowly than sample B.

Sample B dissolves more slowly than sample C.

Which of the following best explains why sample A dissolves more slowly than the other two?

a)

It has the most volume.

b)

It has the smallest surface area.

c)

It has the largest number of sugar molecules.

d)

It has the fewest bonds between sugar modules.

64.

A technican prepared a solution by heating 100 mL of distilled water while adding KCl crystals until no more KCl would dissolve. She then capped the clear solution and set it aside on the lab counter. After several hours she noticed the solution had become cloudly and some solid had settled to the bottom of the flask. Which statement best describes what happened?

a)

As the solution cooled, evaporation of water increased the KCl concentration beyond its solubility.

b)

Water molecules, trapped with the KCl crystals, were released after heating.

c)

At lower temperatures the solubility of KCl decreased and recrystallization occurred.

d)

At increased temperatures the solubility of KCl increased and remained too high after cooling.

65.

A student pours mineral salts into a bottle of cold water. Which of the following best explains why shaking the bottle will affect the dissolving rate of the salt?

a)

Shaking exposes the salts to the solvent more quickly.

b)

Shaking helps more water evaporate.

c)

Shaking equalizes the water temperature.

d)

Shaking causes more ions to precipitate out of solution.

66.

The solubility graph below shows the amounts of four substances that will dissolve in 100 grams of water at various water temperatures.


Which substance has 80 grams of solute dissolved in 100 grams of water at 50 C?

a)

Potassium Bromide

b)

Ammonium Chloride

c)

Potassium Chloride

d)

Lithium Hydroxide

Similar Resources on Wayground

Sci Method and Cells Unit Assessment Study Guide

64 questions

Sci Method and Cells Unit Assessment Study Guide

quiz

Worksheet

•

6th - 10th Grade

Ionic Bonding

62 questions

Ionic Bonding

quiz

Worksheet

•

9th - 12th Grade

Tissues

67 questions

Tissues

quiz

Worksheet

•

10th - 12th Grade

Periodic Table

66 questions

Periodic Table

quiz

Worksheet

•

10th - 12th Grade

Newton's Laws and Forces Test

65 questions

Newton's Laws and Forces Test

quiz

Worksheet

•

7th - 9th Grade

Forensics***Semester 1 Review Game

65 questions

Forensics***Semester 1 Review Game

quiz

Worksheet

•

10th Grade

KIỂM TRA HỌC KÌ I HÓA 11

66 questions

KIỂM TRA HỌC KÌ I HÓA 11

quiz

Worksheet

•

11th Grade

EOC Review #2

67 questions

EOC Review #2

quiz

Worksheet

•

9th - 12th Grade