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Quarter 1 Benchmark Review 2 Flashcards | StudBud
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Quarter 1 Benchmark Review 2
Quarter 1 Benchmark Review 2
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1
Random Trivia: Which element comprises 20% of the weight of all living organisms?
Hydrogen
Carbon
Calcium
Iron
2
This equation is a chemical change because
a new substance is produced
the product is solid
it is balanced
there are 2 substances on the reactant side
3
If the temperature of the balloon were to decrease suddenly how would the balloon change?
its volume would decrease
its volume would increase
its mass would increase
its mass would decrease
4
See question
B
A
D
C
5
Which best describes what happens to the molecules of liquid between 5-10 minutes?
the molecules undergo a chemical change
the molecules absorb energy to change phase
mass of the molecules increases
the average kinetic energy of the molecules decreases
6
Adding heat energy to the water in this investigatin caused a
chemical change from solid to liquid
chemical change from liquid to solid
physical change from liquid to gas
physical change from solid to liquid
7
4 materials are put in containers. they are moved from small to large container Which will spread to fill the big one?
air
sand
water
ice
8
As a sample of water turns to ice
new molecules are formed
the arrangement of molecules changes
energy is absorbed by the molecules
the mass of the sample is increased
9
Which statement explains why silver nitrate (AgNO
3
) is classified as a compound?
because it chemically reacts with copper
it forms a solution when mixed with water
because it forms when 3 different elements chemically combine
because it contains a metal
10
Which is a mixture?
Figure 2
Figure 3
Figure 1
Figure 4
11
Which region represents the solid phase?
I
II
III
IV
12
Which element has the same number of vlanece electrons as Krypton?
selenium
neon
chlorine
fluorine
13
Which element is least reactive?
F
Xe
Ca
Li
14
Between points x and y what would be observed?
solid and liquid will be present
only vapor will be present
liquid and vapor will be present
only liquid will be present
15
SEE PICTURE
proton with a positive charge
electron with a neutral charge
neutron with a negative charge
electron with a negative charge
16
According to the diagram, what temperature will the substance boil at?
-10 C
140 C
-60 C
90 C
17
Which represents change from ice to water?
D
C
B
A
18
What generalization can be made about the relationship between temperature and volume of the gas?
As temperature of the gas decreases, its volume stays the same
as the temperature of the gas increases its volume stays the same
as temperature of gas decreases, its volume increases
as the temperature of the gas increases the volume increases
19
Which statement explains why the temperature leveled off in section 2?
the water reached the boiling point so the temperature no longer increased
cold water heats faster than warm water so once the cold
an experimental error caused the graph to level off
Alex turned off the hot plate so the water didn't get warmer
20
See question
C
A
B
D
21
Random trivia question: Diabetes develops as a result of a problem with which organ?
liver
Kidneys
gallbladder
pancreas
22
Which point represents the substance in the physical state with the particles moving the least?
Y
X
Z
W
23
See picture
get larger
move faster and further apart
get smaller
move slower and closer together
24
How many neutrons are in plutonium?
150
94
338
244
