NEW
Font size
S
M
L
XL
WorksheetsTypes of Reactions
Total questions: 18
Worksheet time: 24mins
Name
Class
Date
1.
the starting materials in a chemical reaction
a)
Products
b)
Reactants
c)
Starters
d)
Enders
2.
a substance that is formed as the result of a chemical reaction
a)
Product
b)
Reactant
c)
Starters
d)
Enders
3.
a process or reaction in which the system absorbs energy from its surroundings; usually, but not always, in the form of heat
a)
Endothermic Reaction
b)
Exothermic Reaction
c)
Diffusion
d)
Fission
4.
a chemical reaction that releases energy by light or heat
a)
Endothermic Reaction
b)
Exothermic Reaction
c)
Diffusion
d)
Fission
5.
type of chemical reaction where an element reacts with a compound and takes the place of another element in that compound
a)
Double Displacement
b)
Single Displacement
c)
Synthesis
d)
Decomposition
6.
type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products
a)
Double Displacement
b)
Single Displacement
c)
Synthesis
d)
Decomposition
7.
type of reaction in which two or more elements combine to form a more complex compound
a)
Double Displacement
b)
Single Displacement
c)
Synthesis
d)
Decomposition
8.
type of reaction in which a compound is broken down into its simple elements
a)
Double Displacement
b)
Single Displacement
c)
Synthesis
d)
Decomposition
9.
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
10.
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
11.
Provides evidence that a chemical reaction has occurred.
a)
dissolving
b)
melting
c)
formation of a gas
d)
bending
12.
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
13.
What type of chemical reaction takes place when fluorine reacts with sodium bromide?
a)
single replacement
b)
double replacement
c)
combustion
d)
synthesis
14.
A compound is reacted and forms two new substances. What type of reaction is this?
a)
combustion
b)
synthesis
c)
decomposition
d)
single replacement
15.
Describes the number of atoms in a compound of each element.
a)
coefficient
b)
superscript
c)
subscript
d)
SI unit
16.
What are the correct coefficients when this equation is balanced?
KClO3 --> KCl + O2
KClO3 --> KCl + O2
a)
2,2,2
b)
2,2,3
c)
1,2,3
d)
3,3,3
17.
Which half reaction shows the element being reduced. In the following reaction.
2Na + Cl2 --> 2NaCl
2Na + Cl2 --> 2NaCl
a)
Na0 --> Na+1 + 1e-
b)
Cl20 + 2e- --> 2Cl-
c)
Na0 + 1e- --> Na+1
d)
Cl20 --> 2Cl- + 2e-
18.
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
Reset
