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WorksheetsTypes of Reactions
Total questions: 20
Worksheet time: 14mins
Name
Class
Date
1.
Combining substances to form a new substance
a)
Displacement
b)
Synthesis
c)
Decomposition
d)
Oxidation
2.
Breaking down a substance into simpler substances
a)
Displacement
b)
Synthesis
c)
Decomposition
d)
Oxidation
3.
Combining a substance with oxygen
a)
Displacement
b)
Synthesis
c)
Decomposition
d)
Oxidation
4.
Switching one substance for another
a)
Displacement
b)
Synthesis
c)
Decomposition
d)
Oxidation
5.
Having to do with heat
a)
Displacement
b)
Synthesis
c)
Decomposition
d)
Thermic
6.
What type of reaction is the equation C + O2 → CO2?
a)
Synthesis Reaction
b)
Decomposition Reaction
c)
Single Displacement Reaction
d)
Double Displacement Reaction
7.
What type of reaction is the equation 2NaCl →2Na +Cl2?
a)
Synthesis Reaction
b)
Decomposition Reaction
c)
Single Displacement Reaction
d)
Double Displacement Reaction
8.
Cu + 2Ag(NO3) → 2Ag + Cu(NO3)
a)
Synthesis Reaction
b)
Decomposition Reaction
c)
Single Displacement Reaction
d)
Double Displacement Reaction
9.
Ca3(PO4)2 + 3 H2SO4 + 3 CaSO4 + 2 H3(PO4)
a)
Synthesis Reaction
b)
Decomposition Reaction
c)
Single Displacement Reaction
d)
Double Displacement Reaction
10.
Which of the following is an example of a chemical change?
a)
melting a stick of butter
b)
dissolving salt in water
c)
using magnesium to displace hydrogen gas from water
11.
Consider the chemical equation CH4 + 2 O2 → CO2 + 2 H2O. In this equation, CH4 is a
a)
product
b)
reactant
c)
displacement
12.
Consider the equation 4 Fe+3 O2 → 2 Fe2O3 . In this equation, 3 O2 is a
a)
product
b)
reactant
c)
compound
13.
Which of the following is an example of a physical change to matter?
a)
rusting
b)
digestion
c)
freezing
14.
Photosynthesis is a chemical reaction that involves the production of glucose (sugar) from carbon dioxide and water in the presence of sunlight. Photosynthesis is what kind of reaction?
a)
Exothermic
b)
Endothermic
c)
Decomposition
15.
During an endothermic reaction, what happens to energy in relation to the surroundings?
a)
released to
b)
absorbed from
c)
mixed with
16.
During an exothermic reaction, what happens to energy in relation to the surroundings?
a)
released to
b)
absorbed from
c)
mixed with
17.
In a cold pack, which type of reaction draws heat from the surroundings?
a)
exothermic
b)
endothermic
c)
exergonic
18.
Which generalized equation represents a synthesis reaction?
a)
A + BC → AC+ B
b)
A + B → AB
c)
AB → A + B
19.
Which generalized equation represents a decomposition reaction?
a)
A + BC → AC+ B
b)
A + B → AB
c)
AB → A + B
20.
Which generalized equation represents a single displacement reaction?
a)
A + BC → AC+ B
b)
A + B → AB
c)
AB → A + B
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