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Flashcards in chem chapt 2 test Deck (51):
0

A measure of the amount of matter that an object contains; the SI base unit is kilograms

Mass

1

A measure of the space occupied by a sample of matter

Volume

2

A property that depends on the amount of matter in a sample

Extensive property

3

A property that depends on the type of matter in a sample, not the amount

Intensive property

4

Matter that has a uniform and definite composition, either an element or a compound

Substance

5

A quality or condition of a substance that can be observed or measured without changing the substance's composition

Physical property

6

Form of matter that has a definite shape and volume

Solid

7

Form of volume that flows, has a fixed volume, and an indefinite shape

Liquid

8

Form of matter that takes the shape and volume of its container, no definite shape or volume

Gas

9

Describes the gaseous state of a substance that is generally liquid or solid at room temperature

Vapor

10

A change during which some properties of a material change, but the composition does not change

Physical change

11

A physical blend of two or more substances that are not chemically combined

Mixture

12

A mixture that is not uniform in composition, components are not evenly distributed throughout the mixture

Heterogenous mixture

13

A mixture that is uniform in composition, components are evenly distributed and not easily distinguished

Homogenous mixture

14

Any part of a sample with a uniform composition and properties

Phase

15

Simplest form of matter that has a unique set of properties

Element

16

Contains two or more elements chemically combined into a fixed proportion

Compound

17

Chemical or Physical Change? Boiling water

Physical

18

Chemical or Physical Change? Frying an egg

Chemical

19

Chemical or Physical Change? A rusting bicycle

Chemical

20

Ability to stretch into a wire, ability to twist or bend

Ductility

21

Chemical or Physical Property? Temperature

Physical

22

Chemical or Physical Property? Sour taste

Physical

23

Chemical or Physical Property? Dissolves in water

Physical

24

Chemical or Physical Property? Flammable

Chemical

25

Chemical or Physical Property? Malleable

Physical

26

Ability to be hammered thin without breaking

Malleable

27

Physical or Chemical Change? Paper burns

Chemical

28

Physical or Chemical Change? Milk sours

Chemical

29

Physical or Chemical Change? Pancakes cook

Chemical

30

Physical or Chemical Change? Fireworks explode

Chemical

31

Physical or Chemical Change? Paper towel absorbs water

Physical

32

Physical or Chemical Change? Food is digested

Chemical

33

Physical or Chemical Change? Heat changes water into steam

Physical

34

Physical or Chemical Change? A piece of ice melts and reacts with sodium

Both

35

Homogenous or Heterogenous? Salt water

Homogenous

36

Homogenous or Heterogenous? Cake batter

Either is acceptable

37

Homogenous or Heterogenous? Paint

Heterogenous

38

Homogenous or Heterogenous? Cooking oil

Homogenous

39

Element or Compound? Sodium

Element

40

Element or Compound? Table sugar

Compound

41

Element or Compound? Air

Neither, mixture

42

What is redox a combination of? What is an acronym to help remember?

Oxidation + Reduction
OIL RIG
Oxidation is loss, reduction is gain (of electrons)

43

Extensive or Intensive? Mass

Extensive

44

Extensive or Intensive? Color

Intensive

45

Extensive or Intensive? Density

Intensive

46

Extensive or Intensive? Length

Extensive

47

How is the periodic table organized?

Idk help we need to know this

48

What is the term that distinguishes heterogenous from homogenous?

Idk help we need to know this

49

Releases heat

Exothermic

50

Absorbs heat

Endothermic