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Chemical Bonding And Chemical Reactions
Test Description: Bonding and Chemical Reactions
Instructions: Answer all questions to get your test result.
1) How many bonds form when hydrogen bonds to oxygen?
A
1
B
12
C
2
D
6
2) What family of elements is likely to bond with Group 1 (Alkali Metals)?
A
Oxygen Family
B
Alkaline Earth Metals
C
Carbon Group
D
Halogens
3) What is the common name for two atoms of hydrogen bonded to one atom of oxygen?
A
Carbon Dioxide
B
Methane
C
Water
D
Sugar
4) The mass before a chemical reaction ______________ the mass after a chemical reaction.
A
must be less than
B
must be the same as
C
must be more than
D
cannot be the same as
5) What is another term for mass being conserved?
A
lower reactants than products
B
stable reactants and products
C
balanced reactants and products
D
higher reactants than products
6) What makes an observation quantitative?
A
it is made by a qualified scientist
B
it is of good quality
C
it does not refer to numerical values
D
it involves numerical values
7) Explain the Law of Conservation of Mass.
A
The mass of the products must be the same as the mass of the reactants.
B
The mass of the reactants varies from the mass of the products
C
The mass of the products must be more than the mass of the reactants.
D
The mass of the products must be less than the mass of the reactants.
8) What does the Principle of Conservation men?
A
Matter does not change.
B
Matter is only temporary.
C
Matter is not created or destroyed.
D
Matter is created and destroyed.
9) What group is likely to bond with the Alkaline Earth Metals?
A
The Oxygen Family
B
The Nitrogen Group
C
The Boron Family
D
The Noble Gases
10) Ionic bonding involves a ____________ and a _________________.
A
Metal gaining an electron; non metal losing an electron
B
Metalliod gaining an electron; metal losing an electron
C
Metalliod losing an electron; nonmetal gaining an electron
D
Metal losing an electron; a nonmetal gaining an electron
11) What is listed on the left side of a chemical equation?
A
the products
B
gases and solids
C
all balanced elements
D
the reactants
12) What family will bond with Alkaline Earth Metals?
A
The carbon Group
B
The Halogens
C
The oxygen Family
D
The Nitrogen Group
13) What is an ion?
A
a neutron
B
an electron
C
a charged particle
D
a proton
14) How do atoms become positive ions?
A
by losing a valence electron
B
by gaining a proton
C
by gaining an electron
D
by gaining a valence electron
15) How do atoms become negative ions?
A
by losing a valence electron
B
gaining a proton
C
by losing a proton
D
by gaining a valence electron
16) Which member of the Halogen group is the most reactive?
A
Astitine
B
Fluorine
C
Chlorine
D
Bromine
17) Burning gasoline is a ___________________ change.
A
Physical
B
Chemical and physical
C
None of the above
D
Chemical
18) What is a chemical reaction?
A
When energy is released as light
B
When chemical bonds are broken and new bonds form
C
When energy is released as heat
D
When new substances are formed
19) What is evidence of a chemical reaction?
A
gas bubbles form
B
changes in color
C
changes in the state of matter
D
a new substance is produced
20) A quick way to show chemical reactions is called a ____________.
A
chemical equation
B
coefficient
C
chemical formula
D
subscript
*select an answer for all questions
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