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Chemistry > States of Matter and Mixtures > Flashcards

States of Matter and Mixtures Flashcards

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1
Q

what are 2 factors that the particle theory says about atoms

A

hard
spheres

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2
Q

what is the structure of atoms like in a solid (3 factors)

A

close together in a regular pattern
vibrate around fixed positions
store the least energy

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3
Q

what is the structure of atoms like in a liquid (2 factors)

A

close together but random
mover around each other

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4
Q

what is the structure of atoms like in a gas (3 factors)

A

far apart and random
fast in all direction
most energy stored

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5
Q

what is the name of the state change from solid to gas

A

sublimation

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6
Q

what is the name of the state change from gas to solid

A

deposition

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7
Q

when does evaporation occur

A

particles with high enough energy leave the surface of the liquid

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8
Q

what is an element

A

a substance that consists of atoms with the same atomic number

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9
Q

what is compound

A

a substance that consists of 2 or more different elements that are chemically joined together

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10
Q

what is a pure substance

A

a substance that contains only one element or compound in it

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11
Q

what is a mixture substance

A

a substance that contains more than one type of element or compound

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12
Q

what method can be used to separate 2 liquids from a mixture

A

distillation

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13
Q

what method is used to separate an insoluble substance from a liquid

A

filtration

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14
Q

what do you call the stuff left in the filter paper after filtration

A

residue

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15
Q

what do you call the stuff collected from filtration

A

filtrate

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16
Q

what are the 2 phases in paper chromatography

A

stationary phase
mobile phase

17
Q

what is potable water

A

water that is safe for consumption

18
Q

what are the 3 stages of water treatment

A

sedimentation
filtration
chlorination

19
Q

what happens in the chlorination stage of water treatment

A

chlorine bubbled through the water to kill microbes

20
Q

what happens in the sedimentation stage of water treatment

A

large insoluble particles sink to the bottom

21
Q

what happens in the filtration stage of water treatment

A

small insoluble particles are removed by filtering through beds of sand

22
Q

what are 3 benefits of using simple distillation on seawater

A

lots of seawater
produces pure water
kills microbes in the seawater

23
Q

what is a DISADVANTAGE of using simple distillation on seawater?

A

needs a lot of heat energy

Chemistry (11 decks)

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