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Matter Test Review- Honors Flashcards | StudBud
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Matter Test Review- Honors
Matter Test Review- Honors
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#matter#8thgradescience#pH#conservation of mass #chemical and physical changes
Flashcards
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Questions
30
Answers
1
Water had a pH of of 7 so it is.....
an acid
a base
neutral
2
In this state, the particles are close together but slide past each other freely
Plasma
Solid
Liquid
Gas
3
Which of the following is an acid?
soap
baking soda
detergent
soda
4
Which statement
best
summarizes the development of the atomic theory over time?
Model changes showed that the atomic theory was an opinion.
Each time a new element was found, the theory was modified.
The discovery of new evidence caused changes to the theory.
Advancements in atomic models proved the theory was true.
5
_____ is constant (the same) no matter the size of the sample of matter.
Volume
Mass
Density
Weight
6
During a chemical change,
the substance changes from a gas to a liquid.
a new substance is formed.
the substance changes from a liquid to a gas.
the substance does not change its identity.
7
Matter changes state when...
energy is added
there is no energy
energy is added or removed
energy is removed
8
Tomato juice has a pH of 4.5, so it is...
neutral
an acid
a base
9
During a physical change,
you usually notice light, heat, gas, odor, or a color change
the identity of the substance is not changed.
the identity of the substance changes.
a new substance is formed.
10
In this state, the particles are spread very far apart and moving very rapidly.
Gas
Plasma
Liquid
Solid
11
An example of a physical property is
reactivity
flammability
combustibility
solubility
12
_____ is the amount of matter in an object, measured in grams.
Mass
Weight
Volume
Density
13
An example of a chemical property is
electrical conductivity
magnetisim
reactivity
thermal conductivity
14
Evaporation is............
a magic trick
the process of turning from solid to liquid
something that is wet
the process of turning from liquid into vapor
15
An example of a chemical change is
tearing
evaporation
melting
burning
16
Bleach has a pH of 12, so it is....
neutral
a base
an acid
17
What is sublimation
gas to liquid
Solid to gas
solid to liquid
gas to solid
18
An element's atomic number is the number of
electrons.
protons.
neutrons.
quarks.
19
At which temperature would a chemical reaction happen the fastest?
500 celsius
800 celsius
100 celsius
00 celsius
20
This law states that matter cannot be created or destroyed
law of conservation of mass
law of gravity
atomic theory
law of superposition
21
Calculate: What is the density of an object that has a mass of 26g and a volume of 2mL?
52 g/mL
13 g/mL
13 g
52 mL
22
In this state of matter, the particles are not moving freely, only vibrating in place
Liquid
Plasma
Gas
Solid
23
Begin with 14 g of baking soda and 6 g of vinegar, how much will the reaction's mass be?
less than we started with
more than we started with
the same as when we started
mass cannot be determined
24
In this state, the particles are moving so fast that electrons have separated from the atoms
Plasma
Gas
Solid
Liquid
25
_____ is the amount of matter in a given space, measured in g/mL or g/cm
3
Mass
Weight
Volume
Density
26
where are neutrons located on the atomic model?
The nucleus
outer rings
Inner rings
27
What is Niels Bohr’s contribution to modern atomic theory?
Electrons are found in the nucleus
Electrons exist in energy levels around the nucleus
Electrons exist outside of the nucleus.
Electrons have a negative charge.
28
An example of a physical change is
burning
evaporating
tarnishing
rusting
29
who proposed the atomic theory?
Rutherford
John Dalton
Democritus
Niels Bohr
30
_____ is the amount of space an object takes up, measured in mL or cm
3
Volume
Mass
Weight
Density
