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Types of Chemical Reactions Quiz

Total questions: 86

Worksheet time: 2hrs 11mins

Name
Class
Date
1.

compound ---> element + element

a)

synthesis

b)

decomposition

c)

combustion

d)

single replacement

2.

What reaction has the following general formula:

A + CD --> C + AD

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

3.

What reaction has the following general formula:

A + B --> AB

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

4.

What reaction has the following general formula:

AB + CD --> CB + AD

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

5.

What reaction has the following general formula:
CxHy + O2 −>CO2 + H2OC_xH_y\ +\ O_2\ ->CO_{2\ }+\ H_2O  

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

6.

What is the general reaction scheme for a combination reaction?

a)

A + B --> AB

b)

AB --> A + B

c)

A + CD --> C + AD

d)

AB + CD --> CB + AD

e)

CxHy+O2 −> CO2+H2OC_xH_y+O_2\ ->\ CO_2+H_2O

7.

What is the general reaction scheme for a decomposition reaction?

a)

A + B --> AB

b)

AB --> A + B

c)

A + CD --> C + AD

d)

AB + CD --> CB + AD

e)

CxHy+O2 −> CO2+H2OC_xH_y+O_2\ ->\ CO_2+H_2O

8.

What type of reaction is the following:
BaCl2+2KI −> 2KCl + BaI2BaCl_2+2KI\ ->\ 2KCl\ +\ BaI_2  

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

9.

What type of reaction is the following:
C11H24+17O2−> 11CO2 + 12H2OC_{11}H_{24}+17O_2->\ 11CO_2\ +\ 12H_2O  

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

10.

What type of reaction is the following:
2KI −> 2K + I22KI\ ->\ 2K\ +\ I_2  

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

11.

What type of reaction is the following:
2NaHCO3−> Na2CO3+CO2+H2O2NaHCO_3->\ Na_2CO_3+CO_2+H_2O  

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

12.

What type of reaction is the following:
Zn + 2HCl −> ZnCl2+H2Zn\ +\ 2HCl\ ->\ ZnCl_2+H_2

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

13.

What type of reaction is the following:
3CuS +2Al −> Al2S3+3Cu3CuS\ +2Al\ ->\ Al_2S_3+3Cu

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

14.

What type of reaction is the following:
2C4H10 +13O2 −> 8CO2+10H2O2C_4H_{10}\ +13O_2\ ->\ 8CO_2+10H_2O

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

15.

What type of reaction is the following:
Na2S +2HCl −> H2S+2NaClNa_2S\ +2HCl\ ->\ H_2S+2NaCl

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

16.

What type of reaction is the following:
Ag3N + 3HBr−>3AgBr+H3NAg_3N\ +\ 3HBr->3AgBr+H_3N

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

17.

Identify the following chemical reaction.

3 HBr + 1 Al(OH)3 ----> 3 H­2O + 1 AlBr3

a)

Synthesis (or combination)

b)

Decomposition

c)

Single displacement

d)

Double displacement

18.

Identify the following chemical reaction.

Pb + FeSO4 ----> PbSO4 + Fe

a)

Synthesis (or combination)

b)

Decomposition

c)

Single displacement

d)

Double displacement

19.
Coal contains carbon and other elements. Carbon dioxide forms when coal burns in the presence of oxygen. Which of these is the best evidence that a chemical reaction occurs when coal burns?
a)
The shape of the coal changes
b)
Oxygen is present
c)
A new substance is produced
d)
Coal is made up of more than one element
20.

Which of the following is a compound?

a)

zinc (Zn)

b)

magnesium (Mg)

c)

sodium chloride (NaCl)

d)

potassium (K)

21.

Which of the following is an element?

a)

potassium chloride (KCl)

b)

water (H2O)

c)

carbon (C)

d)

calcium carbonate (CaCO3)

22.

What is a chemical reaction?

a)

a change in matter when the molecules rearrange to make new molecules

b)

a change in matter when matter changes its form or appearance

c)

a change in matter when the physical appearance changes

d)

a very boring change in matter

23.

This change is a

a)

chemical reaction

b)

physical change

c)

musical change

d)

all answers are correct

24.

The reactants in the image above are:

a)

CH4 and 2 O2

b)

2 H2O and CO2

c)

All of these are reactants

d)

All of these are products

25.

The products in the image above are:

a)

CH4 and 2 O2

b)

2 H2O and CO2

c)

All of these are reactants

d)

All of these are products

26.

When energy like heat and light are given off in a chemical reaction it is called

a)

exothermic

b)

endothermic

c)

eccentric

d)

ectomorphic

27.

When energy is absorbed and taken in during a chemical reaction it is called

a)

exothermic

b)

endothermic

c)

eccentric

d)

ectomorphic

28.

When the matter in a chemical reaction gets warmer it is called

a)

exothermic

b)

endothermic

c)

eccentric

d)

endomorphic

29.

Which is the correct description of photosynthesis

a)

Photosynthesis is a chemical reaction because the atoms of the molecules get rearranged to form new molecules

b)

Photosynthesis is a chemical reaction because the molecules stay the same before and after the change

c)

Photosynthesis is a physical change because nature makes it happen

d)

Photosynthesis is a physical change because the atoms stay the same

30.

A precipitate is a ___________ that forms when 2 liquids react together.

a)

solid

b)

liquid

c)

gas

d)

plasma

31.

How is a chemical change different from a physical change?

a)

there is no difference

b)

a physical change creates a new substance

c)

a chemical change creates a new substance

32.
The following is what type of reaction:
PbCl2 + AgNO3 → Pb(NO3)2 + AgCl
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
33.
The following is what type of reaction:
NH3 + HCl  → NH4Cl
a)
Synthesis
b)
Decomposition
c)

Single Replacement

d)

Double Replacement

34.
What is decomposition?
a)
putting substances together
b)
breaking substances apart
c)
element replacing another element in a compoud
d)
burning of a subtance
35.
What type of chemical reaction is this?
Al(OH)3 → Al2O3  + H2O
a)
Decomposition
b)
Combustion
c)
Synthesis
d)
Single Replacement 
36.

In this type of reaction, ions in two compounds switch. 

a)
Synthesis
b)
Combustion
c)
Single Replacement
d)
Double Replacement
37.

Ca + AlCl3 --> CaCl2 + Al

a)
Synthesis
b)
Decomposition
c)

Single Replacement

d)

Double Replacement

38.

In this type of reaction, one element replaces another in a compound.

a)
Synthesis
b)
Combustion
c)
Single Replacement
d)
Double Replacement
39.

In this type of reaction, one reactant turns into several different products.

a)
Decomposition
b)
Synthesis
c)
Combustion
d)
Single Replacement
40.

This reaction always starts with a hydrocarbon that reacts with oxygen and produces carbon dioxide and water. 

a)
Decomposition
b)
Synthesis
c)
Combustion
d)
Single Replacement
41.
Two Reactants and One Product
a)
Decomposition
b)
Synthesis
c)
Combustion
d)
Single Replacement
42.

What type of reaction is being demonstrated in this picture?

a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
43.

Si   + S8   -->   Si2S4

a)
Synthesis
b)
Decomposition
c)
Single Displacement
d)
Double Displacement
44.
C4H12 + O2 → CO2 + H2O
a)
Synthesis
b)
Combustion
c)
Single Replacement
d)
Double Replacement
45.

Pb(NO3)2   -->   PbO +  NO2  +  O2

a)
Synthesis
b)
Decomposition
c)
Single Displacement
d)
Combustion
46.

KOH + H3PO4 --> K3PO4 + H2O

a)
Synthesis 
b)
Decomposition
c)

Single replacement

d)

Double replacement

47.

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

48.

What type of reaction involves 2 substances combining to form 1 new compound?

a)

Decomposition Reaction

b)

Single Replacement Reaction

c)

Double Replacement Reaction

d)

Synthesis Reaction

49.

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

50.

What type of reaction involves ions from 2 compounds exchanging places to form 2 completely new compounds?

a)

Single Replacement Reaction

b)

Double Replacement Reaction

c)

Synthesis Reaction

d)

Decomposition Reaction

51.

What are the reactants in the chemical equation pictured?

a)

CH4 and CO2

b)

CH4 and O2

c)

CO2 and H2O

d)

O2 and H2O

52.

What are the products of the chemical reaction pictured?

a)

CH4 and CO2

b)

CH4 and O2

c)

CO2 and H2O

d)

O2 and H2O

53.

What type of chemical reaction is this one?

Al(OH)3 --> Al2O3 + H2O

a)

Decomposition

b)

Combustion

c)

Synthesis

d)

Single Replacement

54.

What type of chemical reaction is this one?

CUO + CO2 --> CuCO3

a)

Decomposition

b)

Combustion

c)

Synthesis

d)

Single Replacement

55.

What type of chemical reaction is this one?

Ca + MgCl2 --> CaCl2 + Mg

a)

Decomposition

b)

Combustion

c)

Synthesis

d)

Single Replacement

56.

3KOH + H3PO4 --> K3PO4 + 3H2O

a)

Combination

b)

Decomposition

c)

Single replacement

d)

Double replacement

57.
CxHy +O2 --> H2O + CO2
a)
Decomposition
b)
Double replacement
c)
Combustion
d)
Single Replacement
58.
Pb(NO3)2 --> PbO + NO2 + O2
a)
Synthesis (combination)
b)
Decomposition
c)
Single replacement
d)
Combustion
59.
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
60.
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
61.

If Ethylene (C2H4) reacts with Oxygen gas in a chemical reaction, what are the products?

a)

C2O2 + H4

b)

CO2 + H2 + O2

c)

CO + H2

d)

CO2 + H2O

62.

Barium Bromide reacts with Lithium Phosphate to yield Lithium Bromide and Barium Phosphate. What type of reaction is it?

a)

decomposition

b)

synthesis

c)

single displacement

d)

Double displacement

e)

combustion

63.

What are the products of this single displacement reaction? Cu+ AgNO3--> 

a)
Cu(NO3)2+Ag
b)
CuNO3 + Ag
c)
CuAg+NO3
d)
Cu+ AgNO3
64.

What are the products for this combustion reaction: C2H4 + 2 O2 -->

a)
C2O2 + H4
b)
CO2 + HOH
c)
CO + H
d)
2 CO2 + 2H2O
65.
If an element is diatomic it should have a subscript of___
a)
2, always
b)
2, only when it is by itself
c)
it shouldn't have a subscript, it should have a coefficent
66.
What kind of reaction is this:
4Fe  +  3O2 →   2Fe2O3 
a)
Synthesis
b)
Decomposition
c)
Single Replacement 
d)
Double Replacement
67.
What kind of reaction is this:
2H2O2 →2 H2O + O2
a)
Synthesis
b)
Decomposition
c)
Single Replacement 
d)
Combustion
68.
What kind of reaction is this:
Fe + CuSO4 -> Cu + FeSO4
a)
Double Replacement
b)
Decompostion
c)
Single Replacement
d)
Combustion
69.
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)
70.

What are the products of this Single displacement reaction?

Cu2+ + AgNO3 →

a)

Cu(NO3)2 + Ag

b)

CuNO3 + Ag

c)

CuAg + NO3

d)

Cu + AgNO3

71.

Write a balanced reaction for this single displacement reaction

[Zn has a charge of 2+]

Zn + H2S →

a)

ZnS + H

b)

ZnS + H2

c)

ZnS2 + H

d)

Zn2S + H2

72.

Write a balanced equation for this DR reactions

NaOH + Fe(NO3)3 -->

a)

NaFe + OH(NO3)3

b)

2NaNO3 + 3Fe(OH)3

c)

NaNO3 + FeOH

d)

3NaNO3 + Fe(OH)3

73.

Predict the products for the this SD reaction: K + HCl --> 

a)
KCl + H2
b)
KHCl 
c)
KH + Cl2
d)
KCl + H
74.

Predict the products for the this SD reaction:

Mg + CuCl2 →

a)

MgCl2 + Cu

b)

MgCl + Cu

c)

MgCu + Cl2

d)

CuMg + Cl2

75.

Predict the products for the this DD reaction: [Ag has a charge of 1+]

Ag3N + KCl →

a)

AgCl + K3N

b)

AgK + ClN3

c)

AgN3 + KCl

d)

KAg + N3Cl

76.

What are the correct formulas and coefficients for the products of the following single-replacement reaction?

Ag + K2SO4 →

a)

No Reaction

b)

K2 + AgSO4

c)

2K + Ag(SO)4

d)

2K + AgSO4

77.

Predict the products of this A/B reaction.

HCl + Ca(OH)2

a)

NaCl

b)

CaCl2

c)

CaCl2 + H2O

d)

H2O

78.

Which salt is formed in a reaction between HBr and LiOH?

a)

LiBr

b)

BrLi

c)

NaCl

d)

NaOH

79.

Which of the following products are always formed in a neutralizing Acid/Base reaction?

a)

Salt

b)

Water

c)

Carbon Dioxide

d)

Acid

e)

Base

80.

Which of the following products are formed when a metal hydroxide Base reacts with an acid?

a)

Salt

b)

Water

c)

Carbon dioxide

d)

Acid

e)

Base

81.

Combustion is when a __________ reacts with oxygen

a)

petrol

b)

fuel

c)

fire triangle

d)

carbon dioxide

82.
Another term for burning is
a)
Fire triangle
b)
Magnesium oxide
c)
Combustion
d)
Bustion
83.
A compound that contains only carbon and hydrogen and that produces carbon dioxide and water when burned is called a(n)
a)
binary compound
b)
carbonate
c)
ionic compound
d)
hydrocarbon
84.

What are the products of all combustion reactions?

a)

Hydrogen + oxygen

b)

Carbon dioxide + water

c)

Carbon dioxide + hydrogen

d)

Carbon + water

85.

Match the following

a)
1.

element

b)
2.

compound

c)
3.

Homogenous mixture

d)
4.

Heterogenous mixture

86.

Match the following

a)
1.

solid

b)
2.

liguid

c)
3.

gas

d)
4.

plasma

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