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WorksheetsChemical Reactions
Total questions: 16
Worksheet time: 10mins
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.
an atom or molecule which has gained or lost one or more of its valence electrons
a)
Covalent Bond
b)
Chemical Formula
c)
Ion
d)
Compound
4.
bond in which one or more electrons from one atom are removed and attached to another atom, resulting in positive and negative ions which attract each other
a)
Covalent Bond
b)
Ionic Bond
c)
Reaction Bond
d)
Null Bond
5.
bond in which one or more pairs of electrons are shared by two atoms
a)
Covalent Bond
b)
Ionic Bond
c)
Reaction Bond
d)
Null Bond
6.
a substance formed when two or more elements are chemically bonded together
a)
Element Soup
b)
Pure Element
c)
Ion
d)
Compound
7.
tells us the number of atoms of each element in a compound
a)
Coeffecient
b)
Exponent
c)
Chemical Formula
d)
Calculator
8.
both elements in a compound share a certain number of electrons
a)
Share Electrons
b)
Transfer Electrons
9.
one element loses an electron to another
a)
Share Electrons
b)
Transfer Electrons
10.
the symbolic representation of a chemical reaction
a)
Long Hand
b)
Short Hand
c)
Electron Configuration
d)
Chemical Equation
11.
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
12.
a chemical reaction that releases energy by light or heat
a)
Endothermic Reaction
b)
Exothermic Reaction
c)
Diffusion
d)
Fission
13.
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
14.
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
15.
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
16.
type of reaction in which a compound is broken down into its simple elements
a)
Double Displacement
b)
Single Displacement
c)
Synthesis
d)
Decomposition
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