wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Balancing coefficients equations reaction types

Total questions: 36

Worksheet time: 36mins

Name
Class
Date
1.

What are reactants?

a)

The chemicals that start the reaction.

b)

The chemicals that the reaction produced.

c)

The chemicals that are on the right side of the arrow.

2.

The products are on the right side of the chemical equation.

a)

True

b)

False

3.
Always starts with a Hydrocarbon that reacts with oxygen and produces carbon dioxide and water. 
a)
Decomposition
b)
Synthesis
c)
Combustion
d)
Single Replacement
4.

What is the type of reaction shown above?

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

5.

What type of reaction involves the breaking down of a substance into simpler substances?

a)

Single Replacement Reaction

b)

Double Replacement Reaction

c)

Synthesis Reaction

d)

Decomposition Reaction

6.

What type of reaction involves one element replacing another element in a compound?

a)

Single Replacement Reaction

b)

Double Replacement Reaction

c)

Synthesis Reaction

d)

Decomposition Reaction

7.

3KOH + H3PO4 --> K3PO4 + 3H2O

a)

Combination

b)

Decomposition

c)

Single replacement

d)

Double replacement

8.
CxHy +O2 --> H2O + CO2
a)
Decomposition
b)
Double replacement
c)
Combustion
d)
Single Replacement
9.

What type of chemical reaction is this one?

Ca + MgCl2 --> CaCl2 + Mg

a)

Decomposition

b)

Combustion

c)

Synthesis

d)

Single Replacement

10.
The red numbers in the image below represent ________
a)
subscripts
b)
coefficients
c)
I don't know, and don't want to try
d)
None of the answers are correct
11.
The blue numbers in the image below represent ________
a)
I don't know, and don't want to try
b)
coefficients
c)
subscripts
d)
none of the answers are correct
12.
2 Na + Cl₂ →       2 NaCl
a)
Double Replacement
b)
Synthesis
c)
Single Replacement
d)
Decomposition
13.

HCl + AgNO3 → AgCl + HNO3

a)

Single Replacement

b)

Decomposition

c)

Double Replacement

d)

Synthesis

e)

Neutralization

14.
Is the equation balanced?: 2H2O + O2 --> 4MgO + 3Fe
a)
Yes
b)
No
15.
What does the Law of Conservation of Mass state?
a)
Matter cannot be gained or lost in a chemical reaction.
b)
Matter can only be lost in a chemical reaction.
c)
Matter can only be gained in a chemical reaction.
d)
Matter can be gained and lost in a chemical reaction. 
16.
Balance this equation.
_Mg + _Cl2 --> _MgCl2
a)
1, 2,1
b)
already balanced
c)
2,1,1
d)
1,1,2
17.

Balance this equation:

H2 + Cl2 ---> HCl

a)

It is balanced.

b)

H2 + Cl2 ---> 2HCl

c)

3H2 + Cl2 ---> 6HCl

d)

H2 + 3Cl2 ---> 6HCl

18.

Balance this equation:

HgO ---> 2Hg + O2

a)

It is balanced.

b)

2HgO ---> 2Hg + O2

c)

2HgO ---> Hg + O2

d)

HgO ---> Hg + 2O2

19.
How many HCl molecules do you need to balance this equation? 
Mg +  __HCl --->  MgCl2 + H2
a)
1
b)
2
c)
3
d)
4
20.

Balance the following equation:

___ H2+ ___ O2→___ H2O

a)

1, 1, 3

b)

2, 2, 2

c)

1, 2, 1

d)

2,1, 2

21.
 Mg  +  ___ HCl  →   MgCl2  +   H2
a)
1
b)
2
c)
3
d)
4
22.
How many atoms are there TOTAL in:
H2SO4
a)
6
b)
5
c)
7
d)
3
23.
How many Elements are in the compound C2H8O ?
a)
2
b)
1
c)
3
d)
0
24.
How many total atoms are represented?         4Al2O3
a)
2
b)
8
c)
5
d)
20
25.
How many atoms are there TOTAL in:
H2SO4
a)
6
b)
5
c)
7
d)
3
26.
Balance this equation,            Al2O3 ---> Al + O2 
a)
Cannot be balanced
b)
2Al2O3 ---> 2Al + 3O2 
c)
2Al2O3 ---> 4Al + 3O2 
d)
3Al2O3 ---> 2Al + O2 
27.
_K + _Cl2 →_KCl
a)
2 K + 16 Cl2 → 8 KCl
b)
2 K + 1 Cl2 → 2 KCl
c)
3 K + 4 Cl2 → 3 KCl
d)
1 K + 1 Cl2 →1 KCl
28.
_P4+_O2 →  _P2O3
a)
3 P4+1 O2 → 2 P2O3
b)
1 P4+1 O2 → 2 P2O3
c)
1 P4+ 3 O2 → 2 P2O3
d)
1 P4+ 2 O2 → 3 P2O3
29.
How many Oxygen (O) atoms are in 2C2HO8Cl2
a)
2
b)
16
c)
8
d)
5
30.
CaCO3 ----> CaO + CO2
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
31.
P4 +  3 O2 ----> 2 P2O3
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
32.

Balance the following equation:

___ Mg+ ___ O2→___ MgO

a)

1, 1, 3

b)

2, 1, 2

c)

1, 2, 1

d)

2, 2, 2

33.

Is this equation balanced?

a)

Yes

b)

No

34.

C2H6 + 5O2 → 2CO2 + 3H2O2C_2H_6\ +\ 5O_2\ \rightarrow\ 2CO_2\ +\ 3H_2O_2  
Given this chemical equation, what are the PRODUCTS?

a)

C2H6 and 5O2C_2H_{6\ }and\ 5O_2  

b)

2CO2 and 3H2O22CO_2\ and\ 3H_2O_2  

35.
Is the following equation balanced?...
Al + O2 --> 2Al2O3
a)
Yes!
b)
No!
36.
Which of the following shows the correct way to balance the chemical equation?
Fe + O2 -> Fe2O3
a)
4Fe + 3O2 -> 2Fe2O3
b)
2 Fe + 3O2 -> Fe2O6
c)
4 Fe + O6 -> 2Fe2O3
d)
None of the options are correctly balanced.

Similar Resources on Wayground

Class Expectations and 1st semester review

40 questions

Class Expectations and 1st semester review

quiz

Worksheet

•

10th Grade

Qualitative Properties and Changes in Matter

34 questions

Qualitative Properties and Changes in Matter

quiz

Worksheet

•

10th Grade

Química II Repaso Final

35 questions

Química II Repaso Final

quiz

Worksheet

•

10th Grade - University

Subatomic Particles Practice

35 questions

Subatomic Particles Practice

quiz

Worksheet

•

9th - 12th Grade

Review for Semester 2 Final

40 questions

Review for Semester 2 Final

quiz

Worksheet

•

9th Grade

Unit 4 Review

35 questions

Unit 4 Review

quiz

Worksheet

•

8th - 12th Grade

IKATAN KOVALEN

38 questions

IKATAN KOVALEN

quiz

Worksheet

•

10th Grade

Đề Minh Họa cuối kì 2 -10

37 questions

Đề Minh Họa cuối kì 2 -10

quiz

Worksheet

•

10th Grade