Chem 100 Exam

Question 0

Metric Prefix: tera

Answer 0

Symbol: T
Factor: 10^12

Question 1

Metric Prefix: peta

Answer 1

Symbol:P
Factor: 10^15

Question 2

Metric Prefix: giga

Answer 2

Sym: G
Factor: 10^9

Question 3

Metric Prefix: mega

Answer 3

Sym: M
Factor: 10^6

Question 4

Metric Prefix: Kilo

Answer 4

Sym: K
Factor: 10^3

Question 5

Metric Prefix: hecto

Answer 5

Sym: h
Factor: 10^2

Question 6

Metric Prefix: deka

Answer 6

Sym: da
Factor: 10^1

Question 7

Metric Prefix: deci

Answer 7

Sym: d
Factor: 10^-1

Question 8

Metric Prefix: centi

Answer 8

Sym: c
Factor: 10^-2

Question 9

Metric Prefix: milli

Answer 9

Sym: m
Factor: 10^-3

Question 10

Metric Prefix: micro

Answer 10

Sym: µ
Factor: 10^-6

Question 11

Metric Prefix: nano

Answer 11

Sym: n
Factor: 10^-9

Question 12

Metric Prefix: pico

Answer 12

Sym: P
Factor: 10^-12

Question 13

Metric Prefix: femtocell

Answer 13

Sym: f
Factor: 10^-15

Question 14

Length: meter (m)

1 kilometer equals…

Answer 14

1000 meters

0.62137 miles

Question 15

Length: meter (m)

1 meter equals…

Answer 15

100 centimeters

Question 16

Length: meter (m)

1 centimeter equals…

Answer 16

0.01 meters

Question 17

Length: meter (m)

1 nanometer equals…

Answer 17

1.00 x 10^-9 meters

Question 18

Length: meter (m)

1 picometer equals…

Answer 18

1.00 x 10^-12

Question 19

Length: meter (m)

1 inch equals…

Answer 19

2.54 centimeters

Question 20

Length: meter (m)

1 Angstrom equals…

Answer 20

1.00 x 10^-10 meters

Question 21

Volume: Cubic meter (m^3)
1 liter (L) equals

Answer 21

1000 mL= 1 dm^3

Question 22

Volume: Cubic meter (m^3)

1 gallon equals…

Answer 22

4.00 quarts

Question 23

Mass: kilogram (kg)

1 kilogram equals…

Answer 23

1000 grams

Question 24

Mass: kilogram (kg) | 1 gram equals...

Answer 24

1000 milligrams

Question 25

Mass: kilogram (kg) | 1 milligram equals...

Answer 25

0.001 grams

Question 26

Mass: kilogram (kg) | 1 millimeter equals...

Answer 26

0.001 m

Question 27

Intensive Properties

Answer 27

Properties that will not change, gives info regarding identity Ex. Density, water

Question 28

Extensive Properties

Answer 28

Properties that cannot be identified of what matter is. Changes when amount changes. Ex. Mass and volume

Question 29

Pure Substance

Answer 29

Substance whose composition remains the same throughout, whose components cannot be separated physically Ex.sugar, salt, water

Question 30

Compound

Answer 30

Composed of more than one element; can be broken down into smaller unit chemically and chemical reactions

Question 31

Mixtures

Answer 31

2 or more pure substances whose composition varies; can be separated physically Ex.raisin bran

Question 32

Homogenous mixture

Answer 32

is a mixture where the components that make up the mixture are uniformly distributed throughout the mixture. Ex.water and sugar

Question 33

Heterogenous mixture

Answer 33

A heterogeneous mixture is a mixture where the components of the mixture are not uniform or have localized regions with different properties. Ex.water and oil, soup, pizza

Question 34

Specific heat capacity

Answer 34

Amount of heat needed to raise temperature of 1 g of a substance by 1 degree

Question 35

Endothermic

Answer 35

Heat coming in

Question 36

Exothermic

Answer 36

Heat coming out

Question 37

Calculation for specific heat

Answer 37

q=m x c x

Question 38

State of matter: solid

Answer 38

- Definite volume - definite shape - closed space - vibrate motion

Question 39

State of matter: liquid

Answer 39

- definite volume - indefinite shape - close - relatively free

Question 40

State of matter: gas

Answer 40

- indefinite volume - indefinite shape - far spacing - compressible

Question 41

Fixed/definite property

Answer 41

Property that doesn't change when placed in a container

Question 42

Indefinite property

Answer 42

Takes the property of the container

Question 43

2 kinds of solids:

Answer 43

Crystalline solids=arranges in orderly pattern Ex. Salt, diamonds Amorphous solids=do not show regular geometric pattern Ex.plastic, glass, rubber

Question 44

Physical properties

Answer 44

Can be determined without changing chemical make up of the sample Ex.melting point, Oder, color, shape

Question 45

Chemical properties

Answer 45

Do change chemical makeup of samples Ex. Acidity, explosiveness, burn, rust, combustion

Question 46

Law conservation of energy

Answer 46

Energy cannot be created nor destroyed Units of energy: Joules, Calories, Nutritional Calorie, kilowatt-hour

Question 47

Separation of mixtures

Answer 47

Separate mixtures based on different physical properties of the components. Ex. Physical change

Question 48

Technique of separating mixtures: Distillation

Answer 48

Separating a mixture of two liquids

Question 49

Technique of separating mixtures: Filtration

Answer 49

Separating a solid from a liquid

Question 50

Phase changes are physical changes: boiling

Answer 50

Liquid to gas

Question 51

Phase changes are physical changes: melting

Answer 51

Solid to liquid

Question 52

Phase changes are physical changes: subliminal

Answer 52

Solid to gas

Question 53

Phase changes are physical changes: freezing

Answer 53

Liquid to solid

Question 54

Phase changes are physical changes: condensing

Answer 54

Gas to liquid

Question 55

Phase changes are physical changes:disposition

Answer 55

Gas to solid

Question 56

1 pounds equals...

Answer 56

454 grams

Question 57

Specific heat for water

Answer 57

1.484 j/g*c

Question 58

Density for water

Answer 58

1 g/mL