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Physical Science > Chapter 2 Test Notes > Flashcards

Chapter 2 Test Notes Flashcards

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1
Q

What is Matter?

A

Anything that has mass and takes up space.

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2
Q

What is an example of an element?

A

hydrogen

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3
Q

What is an example of a compound?

A

Carbon Dioxide

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4
Q

What is an example of heterogeneous?

A

salad dressing, paint, cereal, trail mix

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5
Q

What is an example of homogenous?

A

lemonade, sweet tea, Windex

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6
Q

What is a solid?

A

When matter is very close together and cannot move quickly, has a definite shape and volume

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7
Q

What is a liquid?

A

When molecules are close together and move slowly, indefinite shape and definite volume

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8
Q

What is a gas?

A

Molecules are widely spread, move around freely, and move at high speed, indefinite shape and volume

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9
Q

What is plasma?

A

Has lots of energy, and extra energy separates electrons to be electrically charged.

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10
Q

What is gas to liquid?

A

Condensation

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11
Q

What is a gas to a solid?

A

Deposition

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12
Q

What is a liquid to a solid?

A

Freezing

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13
Q

What is a solid to liquid?

A

Melting

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14
Q

What is a solid to a gas?

A

Sublimation

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15
Q

What is a liquid to a gas?

A

Vaporization

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16
Q

What is a chemical property?

A

Properties that can be only observed or measured by changing the chemical identity of the substance.

17
Q

What is a physical property?

A

A property that can be observed directly or measured WITHOUT changing the chemical identity.

18
Q

What is the difference between atoms and molecules?

A

Atoms are singular, the smallest state of matter, and combine to make molecules
Molecules are multiple compounds

19
Q

What is the difference between mass and weight?

A

Mass- how much of a substance, stays the same
Weight-how much gravitational pull there is

20
Q

What is the formula to solve for mass?

A

Mass=Density*Volume

21
Q

What is the formula to solve for volume?

A

Volume=mass/density

22
Q

What is the formula to solve for density?

A

Density=mass/volume

23
Q

How is it possible that at 101 degrees Celsius, water is a gas, mercury is a liquid, and titanium is a solid?

A

101 degrees is only enough for water to be a gas but not anything more or else same with liquid and a solid.

24
Q

Compare the 3 common states of matter according to their particle spacing and degree of particle motion.

A

Solid= is molecules that are very close together and cannot move.
liquid= is molecules close together and move around slowly
gas= molecules that are widely separate, move around freely and at high speed

Physical Science (4 decks)

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