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