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pre ap chemistry 1 > test 2 matter > Flashcards

test 2 matter Flashcards

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1
Q

do solids have a shape

A

yes

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2
Q

do solids have a volume

A

yes

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3
Q

how are the particles of solids

A

they are tight

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4
Q

how is it to compress solids

A

it is difficult

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5
Q

do liquids have a shape

A

no

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6
Q

do liquids have volume

A

yes

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7
Q

how are the particles of liquids

A

loose

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8
Q

how is compressing liquids

A

difficult

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9
Q

does gas have a shape

A

no

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10
Q

does gas have volume

A

no

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11
Q

how are the particles of gas

A

very loose

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12
Q

how is compressing gas

A

easy

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13
Q

what do all particles do

A

they vibrate

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14
Q

what does state depend on

A

temperature and pressure

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15
Q

how does a solid become a liquid

A

melting or fusion

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16
Q

how does a liquid become a gas

A

vaporization or evaporation

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17
Q

how does a gas become a solid

A

deposition

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18
Q

how does a solid become a gas

A

sublimation

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19
Q

how does a gas become a liquid

A

condensation

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20
Q

how does a liquid become a solid

A

solidification, crystallization, freezing

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21
Q

what is a pure substance

A

the same type of particles throughout

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22
Q

what are the two types of pure substances

A

elements and compounds

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23
Q

what is an element

A

a pure substance made of one kind of atom, can not be broken down by chemical means (or physical)

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24
Q

what is a compound

A

a pure substance made of two or more elements joined by chemical bonds, and combines in fixed proportions

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25
Q

what is a mixture

A

substances are physically mixed together

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26
Q

what are the two types of mixtures

A

homogenous and heterogeneous

27
Q

what is a homogenous mixture

A

a mixture that is uniform throughout . you can not see different layers. can also be called a solution

28
Q

what is a heterogeneous mixture

A

a mixture that is not uniform throughout, you ca see layers

29
Q

how are mixtures separated

A

physically

30
Q

the properties of a compound are different from what

A

the properties of the elements

31
Q

why are the properties of a compound different from the properties of the elements

A

because when the elements combine chemically their properties change

32
Q

the properties of a mixture are the same as what

A

the properties of substances

33
Q

why are the properties of mixture the same as the properties of substances

A

because they were mixed physically, not chemically

34
Q

what are the ways that you can separate a mixture

A 
picking the pieces out
magnetism
evaporation
crystallization
decantation
filtration
centrifugation
distillation
chromatography
35
Q

what is evaporation

A

a gas separating from a mixture

36
Q

what is crystallization

A

a solid separating from a liquid

37
Q

what is decantation

A

pouring off a liquid after the solid settles at the bottom

38
Q

what is filtration

A

separating a solid from a liquid using filter paper

39
Q

what is centrifugation

A

separate a solution by density

40
Q

what is distllation

A

separate a solution by boiling points

41
Q

what is chromatography

A

separate a solution by rate at which its components are absorbed

42
Q

what is physical property

A

an aspect that is observed without changing matter

43
Q

what is luster

A

the ability to reflect light

44
Q

what is viscosity

A

the thickness of a liquid

45
Q

what is solubility

A

the ability to dissolve

46
Q

what is conductivity

A

ability to conduct electricity

47
Q

what is ductility

A

ability to drown into a wire

48
Q

what is malleability

A

ability to be hammered into thin sheets

49
Q

what is chemical property

A

an aspect that is observed by changing matter

50
Q

what is effervescent

A

giving off bubbles

51
Q

what is extrinsic property also called

A

extensive property

52
Q

what is extrinsic property

A

depends on the amount of volume

53
Q

what is intrinsic property also called

A

intensive property

54
Q

what is intrinsic property

A

does not depend on the amount of matter

55
Q

what is melting point

A

temperature that a solid becomes a liquid

56
Q

what is a boiling point

A

the temperature that a liquid becomes a solid

57
Q

what is a freezing point

A

the temperature that a liquid becomes solid

58
Q

what is a physical change

A

a change in matter that does not change the identity of a substance. a new substance does not form

59
Q

what is a chemical change

A

a change in matter that changes the identity of a substance. a new substance does form

60
Q

What is the Law of Conservation of Mass

A

states that mass is not created or destroyed during a chemical change

61
Q

what are the main chemical change evidences

A

gas, light, color, odor, endothermic, exothermic, precipitate

62
Q

what is endothermic

A

a substance that absorbs heat (cool container)

63
Q

what is exothermic

A

a substance that gives off heat (warm container)

64
Q

what is a precipitate

A

an insoluble solid that forms in a solution

pre ap chemistry 1 (12 decks)

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