wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Balancing Equations/Types of Reactions Practice

Total questions: 41

Worksheet time: 1hrs 3mins

Name
Class
Date
1.
Which side of a chemical equation is the reactant side?
a)
Left (before the yields sign)
b)
Right (after the yields sign)
2.
Which side of a chemical equation os the product side?
a)
Left (before the yields sign)
b)
Right (after the yields sign)
3.
Which problem is balanced?
a)
PbO2 + 2H2
b)
SO2 + H20 --> H2SO4
c)
2Na + 2H2O --> 2NaOH + H2
4.
Balance this equation.
_SnO2 +_H2-->_Sn +_H2O
a)
1,1,2,1
b)
1,2,1,1
c)
1,2,1,2
d)
1,2,2,1
5.
Balance this equation.
_CF4 + _Br2 -- _CBr4 + _F2
a)
2,1,2,1
b)
1,2,2,1
c)
1,2,1,2
d)
2,2,2,2
6.
What is the little number after an element in a chemical equation called.
Example: H2
a)
Coefficient 
b)
Subscript
c)
Atom
d)
Equation
7.
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. 
8.
Is the equation balanced?: 2H2O + O2 --> 4MgO + 3Fe
a)
Yes
b)
No
9.
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
10.
Is this equation balanced?
a)
yes
b)
no
c)
Not enough information
11.
How many atoms of aluminum are on each side of the following equation: 4Al + 3O2 --> 2Al2 O3
a)
2
b)
6
c)
1
d)
4
12.
How many atoms are there TOTAL in:
H2SO4
a)
6
b)
5
c)
7
d)
3
13.
What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?__Na + __H2O --> __NaOH + __H2
a)
2,2 --> 2,1
b)
4,4 --> 4,1
c)
1,2 --> 2,4
d)
1,2 --> 2,1
14.

What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?

__Ca + __H2O --> __Ca(OH)2 + __H2

a)
2,1 --> 2,1
b)
1,2 --> 1,1
c)
1,2 --> 2,4
d)
1,2 --> 2,1
15.
What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?__CO + __Fe2O3--> __Fe + __CO2
a)
3,1 --> 2,3
b)
3,2 --> 1,1
c)
3,2 --> 2,4
d)
3,2 --> 2,1
16.

Which symbol shows a chemical reaction has occured?

a)

A

b)

B

c)

C

d)

D

17.

The products in this reaction are?

a)

Two solids

b)

One solid and one gas

c)

Three solids and a gas

d)

Two solids and a gas

18.

Magnesium can be burned in oxygen to produce solid magnesium oxide.

a)

Mg + O2→ MgO

b)

Mg+ O→ MgO

c)

Mg + CO2 → MgO + C

d)

Mg + O2→ Mg2O2

19.

Sodium reacts with chlorine gas to produce sodium chloride.

a)

NaCl→ Cl + Na

b)

Na+ CO2 → NaCO2

c)

Na + Cl2→ NaCl

d)

Na + Cl → NaCl

20.

When lead reacts with oxygen, a yellow lead(II) oxide powder is produced.

a)

Pb + O2 → PbO

b)

Pb + O2→ PbO2

c)

Pb2 + O2→ Pb2O

d)

Pb + O → PbO

21.

Iron reacts with solid sulfur to produce iron(II) sulfide powder.

a)

Fe + S → Fe2S

b)

Fe + S → FeS

c)

Fe2 + S→ Fe2S2

d)

Fe + S2 → Fe2S

22.

Hydrogen gas and nitrogen monoxide gas forms water and nitrogen gas.

a)

H2 + NO --> H2O + N2

b)

H + NO --> H2O + N

c)

H2 + N2O3 --> H2O + N2

d)

H + NO --> H2O + N2

23.

sodium phosphate and calcium chloride produce calcium phosphate and sodium chloride

a)

Na3PO4 + CaCl2 --> Ca3(PO4)2 + NaCl

b)

Na3PO4 + CaCl2 --> Ca4PO2 + NaCl

c)

NaPO4 + CaCl2 --> Ca(PO4)2 + NaCl

d)

NaPO4 + CaCl2 --> Ca2(PO4)3 + NaCl

24.

Barium metal and water yields barium hydroxide and hydrogen gas

a)

Ba + H2O --> Ba(OH)2 + H2

b)

Ba2 + H2O --> Ba(OH)2 + H

c)

Ba + H2O --> BaOH2 + H

d)

Ba2 --> Ba(OH)2 + H2

25.

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

26.

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+

27.

The symbol for a substance dissolved in solution is ______

a)

(s)

b)

(l)

c)

(aq)

d)

(g)

28.

This reaction is showing a precipitate form. What would we use to show its' state of matter in a chemical reaction?  

a)

aq

b)

p

c)

s

d)

g

29.
The following is what type of reaction:
PbCl2 + AgNO3 → Pb(NO3)2 + AgCl
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
30.
The following is what type of reaction:
NH3 + HCl  → NH4Cl
a)
Synthesis
b)
Decomposition
c)
Single Replacement Replacement
d)
Double Replacement Replacement
31.
What is decomposition?
a)
putting substances together
b)
breaking substances apart
c)
element replacing another element in a compoud
d)
burning of a subtance
32.
Ions in two compounds switch. 
a)
Synthesis
b)
Combustion
c)
Single Replacement
d)
Double Replacement
33.
What type of chemical reaction is this?
Al(OH)3 → Al2O3  + H2O
a)
Decomposition
b)
Combustion
c)
Synthesis
d)
Single Replacement 
34.
3Ca + 2AlCl3 --> 3CaCl2 + 2Al
a)
Synthesis
b)
Decomposition
c)
Single Displacement
d)
Double Displacement
35.
One reactant into several products.
a)
Decomposition
b)
Synthesis
c)
Combustion
d)
Single Replacement
36.
Always starts with a Hydrocarbon that reacts with oxygen and produces carbon dioxide and water. 
a)
Decomposition
b)
Synthesis
c)
Combustion
d)
Single Replacement
37.
What type a reaction is taking place in this picture?
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
38.
4Si   + S8   -->   2Si2S4
a)
Synthesis
b)
Decomposition
c)
Single Displacement
d)
Double Displacement
39.
C4H12 + O2 → CO2 + H2O
a)
Synthesis
b)
Combustion
c)
Single Replacement
d)
Double Replacement
40.
3KOH + H3PO4 --> K3PO4 + 3H2O
a)
Synthesis 
b)
Decomposition
c)
Single displacement
d)
Double displacement
41.
At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?
a)
the product is doubled
b)
the product is half the mass of the reactants
c)
the mass is the same
d)
the mass changes depending on the reaction

Similar Resources on Wayground

反應速率會考

46 questions

反應速率會考

quiz

Worksheet

•

8th - 9th Grade

SNC1D Static Electricity

36 questions

SNC1D Static Electricity

quiz

Worksheet

•

9th Grade

Examen Química Licenciatura

43 questions

Examen Química Licenciatura

quiz

Worksheet

•

12th Grade - University

國三習題2.4章

42 questions

國三習題2.4章

quiz

Worksheet

•

9th Grade

Quiz on Physchem prop atomic theory and atomic structure

40 questions

Quiz on Physchem prop atomic theory and atomic structure

quiz

Worksheet

•

6th - 9th Grade

Solids

40 questions

Solids

quiz

Worksheet

•

11th - 12th Grade

Ejercicio 3: Clasificación de la materia

40 questions

Ejercicio 3: Clasificación de la materia

quiz

Worksheet

•

12th Grade

Bahan Kimia Untuk Pengguna

40 questions

Bahan Kimia Untuk Pengguna

quiz

Worksheet

•

12th Grade