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