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Physical Science Ch 5
Test Description: The Structure of Matter
Instructions: Answer all questions to get your test result.
1) The forces that hold different atoms or ions together are
A
physical bonds
B
electric currents
C
chemical bonds
D
nuclear forces
2) Each molecule of table sugar C12H22O11 contains
A
0 atoms of carbon
B
1 atom of carbon
C
12 atoms of carbon
D
6 atoms of carbon
3) Cases take up a lot of space because gas molecules
A
have weak chemical bonds
B
have a small molar mass
C
contain very few atoms
D
are not attracted to one another
4) Covalent bonds are formed between
A
ions
B
compounds
C
metal atoms
D
nonmetal atoms
5) Copper is a good conductor of electricity because its electrons
A
can move from atom to atom
B
are positively charged
C
are repelled by protons
D
have a 2- charge
6) The name of dinitrogen tetroxide tells you that this compound contains
A
two N atoms and four O atoms
B
four N atoms and two O atoms
C
four N atom and four O atoms
D
two N atoms and two O atoms
7) When copper combines with oxygen to form copper (II) oxide, the charge of the copper ion is
A
Cu 3+
B
Cu 1+
C
Cu 4+
D
Cu 2+
8) It is possible for different covalent compounds to have the same emperical formula because empirical formulas represent
A
a model of the compound
B
a total of all ionic bonds
C
a ratio of atoms in the compound
D
only the cations in the compound
9) How many chemical bonds can carbon form with other atoms?
A
2
B
1
C
3
D
4
10) Alkanes are hydrocarbons that contain
A
single or double covalent bonds
B
carbon and oxygen only
C
single covalent bonds only
D
carbon, hydrogen, and oxygen
*select an answer for all questions
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