Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Chem 200 > ch 1 > Flashcards

ch 1 Flashcards

1
Q

atom

A

submicroscopic particles/building blocks of ordinary matter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

molecule

A

two or more atoms joined together

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

chemistry

A

studies behavior of matter by studying the behavior of atoms and molecules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

hypothesis

A

educated guess, must include “because”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

experiment

A

tests hypothesis, revision of hypothesis?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

law

A

describes WHY natures does it, summarizes a series of related observation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

law of conservation of mass

A

matter is neither created nor destroyed in a chemical reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

theory

A

describes WHAT nature does, gives the underlying reasons for related observation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

atomic theory

A

each element is composed of atoms, all atoms of a given element have the same mass and other properties, atoms combine in simple, whole numbered rations to form compounds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

matter

A

anything that occupies space and has mass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

state

A

solid, liquid, gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

solid

A

fixed shape, fixed volume

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

liquid

A

definite volume, shape of container

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

gas

A

no fixed shape or volume

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

crystalline

A

atoms/molecules in patterns with long-range repeating order and is well organized

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

amorphous

A

no long range order of atoms/molecules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

pure substance

A

one component

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

mixture

A

two or more components

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

element

A

one type of atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

compound

A

combination of two or more atoms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

heterogeneous mixture

A

see difference

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

homogeneous mixture

A

uniform

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

decanting

A

separating separating mixtures by pouring the top layer into another container

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

distillation

A

separating mixtures by heating and boiling off/vaporizing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

volatile

A

tending to vaporize easily

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

filtration

A

separating mixtures by pouring it through a filter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

physical change

A

alter only state of appearance but not composition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

chemical change

A

atoms rearrange and change into a difference substance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

physical property

A

a substance displays without changing it’s composition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

chemical property

A

a substance displays only by changing its composition via a chemical change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

energy

A

the capacity to do work

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

work

A

action of a force through a distance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

kinetic energy (KE)

A

associated with motion of an object

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

potential energy (PE)

A

associated with position or composition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

thermal energy

A

kinetic energy associated with the temperature of an object

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

meter

A

m, SI length

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

kilogram

A

kg, SI mass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

mass

A

a measure of the quantity of matter within it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

second (s)

A

SI time

40
Q

kelvin (K)

A

SI temperature

41
Q

temperature

A

a measure of the average kinetic energy of the atoms or molecules that compose the matter

42
Q

I gal= ? oz

A

128 oz

43
Q

1 Liter = ? oz

A

33.81 oz

44
Q

1 Liter= ? gal

A

0.26 gal

45
Q

density (d)

A

mass/ volume

46
Q

intensive property

A

one that is independent of the amount of the substance

47
Q

extensive property

A

one that is dependent of the amount of substance

48
Q

which figures are significant?

A

all non zero digits, sandwiched zeros, trailing zeros that are after a decimal, trailing zeros that are before a decimal but after a nonzero digit

49
Q

how many grams in a pound?

A

453.59 g

50
Q

accuracy

A

how close the measurement is to the actual value

51
Q

precision

A

how close of a series of measurements are to one another, or how reproducible they are

52
Q

random error

A

error that has equal probability of being too high or too low

53
Q

systematic error

A

error that is constantly too high or too low

54
Q

dimensional analysis

A

using units as a guide to solving problems

55
Q

conversion factor

A

a fractional quantity with the units we are converting FROM on bottom to the units we are converting TO on top

56
Q

scientific approach

A
  1. observation
  2. hypothesis
  3. experiment
  4. theory
57
Q

at sea level, water freezes at

A

273 K
0 *C
32 *F

58
Q

at sea level, water boils at

A

373 K
100 *C
212 *F

59
Q

F- celsius to kelvin

A

C + 273

60
Q

F- kelvin to celsius

A

K - 273

61
Q

F- fahrenheit to celsius

A

(F - 32) / 1.8

62
Q

F- celsius to fahrenheit

A

[1.8 (C)] + 32

63
Q

E

A

exa

10^18

64
Q

P

A

peta

10^15

65
Q

T

A

tera
10^12
trillion

66
Q

G

A

giga
10^9
billion

67
Q

M

A

mega 10^6

million

68
Q

k

A

kilo
10^3
thousand

69
Q

h

A

hecto
10^2
hundred

70
Q

da

A

deca

10^1

71
Q

d

A

deci
10^ -1
tenth

72
Q

c

A

centi
10^ -2
hundredth

73
Q

m

A

milli
10^ -3
thousandth

74
Q

μ

A

micro
10^ -6
millionth

75
Q

n

A

nano
10^ -9
billionth

76
Q

p

A

pico
10^ -12
trillionth

77
Q

f

A

femto

10^ -15

78
Q

a

A

atto

10^ -18

79
Q

F- volume

A

mass/ density

80
Q

F- mass

A

volume x density

81
Q

which figures are not significant/ambiguous?

A

leading zeros, numbers without a decimal should be avoided

82
Q

SN, add/sub rules

A

all exponents must be converted to the same power of 10, then add digit terms

83
Q

SN, mult/div rules

A

digit terms are multiplied in the normal way, exponents are added. or divided and exponents are subtracted

84
Q

SF, add/sub, result carries

A

same # of decimal places as fewest decimal places

85
Q

SF, mult/div, result carries

A

same # of sig fig as factor with the fewest sig figs

86
Q

SN powers rules

A

multiply power with digit terms and with other powers (foil)

87
Q

SN root rules

A

change exponent if necessary so that the number is divisible by root. remember: taking the square root of a number is the same as taking that number to the ^ 1/2 power

88
Q

volume

A

a measure of space

89
Q

how many grams in an oz?

A

28.35 g

90
Q

how many oz in 1 lb?

A

16 oz

91
Q

how many grams in a kilogram?

A

1000 g

92
Q

how many cm in 1 m?

A

100 cm

93
Q

how many mm in 1 m?

A

1000 mm

94
Q

how many ft in 1 m?

A

3.28 ft

95
Q

how many inches in 1 m?

A

39.37 in

96
Q

how many meters in 1 mi?

A

1609.34 m

Chem 200 (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions