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Chapter 10, Review Questions Plus
Test Description: Part 11
Instructions: Answer all questions to get your test result.
1) SI units are useful because they are all related by multiples of ______.
A
five
B
50
C
two
D
10
2) Which of the following visual displays would be best for describing the percentages of different gases in the atmosphere?
A
circle graph
B
any of the above
C
bar graph
D
line graph
3) How many atoms of calcium are in a unit of calcium phosphate whose formula is Ca3(PO4)2?
A
three
B
four
C
one
D
two
4) When Rutherford performed his metal foil experiment, he was surprised that most of the alpha particles ___________.
A
were absorbed by the foil
B
bounced back from the foil
C
were deflected by the foil
D
passed straight through the foil
5) Vegetable soup is an example of a _______________.
A
pure substance
B
homogeneous mixture
C
compound
D
heterogeneous mixture
6) When someone stirs cocoa powder into hot water or hot milk, the cocoa changes from a _____________ .
A
heterogeneous mixture into a homogeneous mixture
B
homogeneous mixture into a non-uniform mixture
C
compound into a heterogeneous mixture
D
homogeneous mixture into a compound
7) Kinetic energy is the _____________ of motion.
A
heat
B
state
C
temperature
D
energy
8) When both -NH2 and -COOH replace hydrogen atoms on the same carbon atom, a(n) _____________ is formed.
A
amino acid
B
carboxylic acid
C
amine
D
carbohydrate
9) A cork is able to float on water because it is ___________.
A
less dense than the water
B
a crystalline solid
C
small in size
D
equal in density to water
10) A basic example has a pH range __________.
A
between 7 and 14
B
of exactly 0
C
of exactly 7
D
between 0 and 7
11) Some elements are unlikely to lose or gain electrons, but share electrons to form covalent bonds. Which of the following elements is most likely to form covalent bonds?
A
sulfur (#16)
B
oxygen (#8)
C
chlorine (#17)
D
silicon (#14)
12) What is the name given to the units that make up covalently bonded compounds?
A
energy levels
B
molecules
C
electrons
D
ions
13) Which of the following conditions would likely cause the activation energy to be high?
A
atoms are not close togethe
B
the temperature is hot
C
a catalyst is present
D
atoms are closer together
14) The atmosphere of Earth is an example of a _________ solution.
A
gas-liquid
B
solid-liquid
C
gas-gas
D
liquid-liquid
15) Which of the following mixtures is NOT an example of a substance?
A
air
B
pizza
C
brass
D
drinking water
16) When a hydroxyl group is substituted for a hydrogen atom in a hydrocarbon, what type of molecule results?
A
a polymer
B
a carboxylic acid
C
an amine
D
an alcohol
17) which of the following factors does NOT explain why carbon can form so many compounds?
A
Carbon has six protons in its nucleus.
B
Carbon can bod in chains and rings.
C
Carbon can form four single bonds.
D
The same atoms can be grouped in different ways, forming isomers
18) x
A
x
B
x
C
x
D
x
19) Which of the following functions is NOT a role of proteins in the body?y
A
store energy in the form of glycogen
B
in the form of hemoglobin, carry oxygen in the blood
C
make up fingernails and hair
D
catalysts in cell reactions
*select an answer for all questions
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