Brainscape's Knowledge GenomeTM

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


See full index

Chemistry 1 > Chemistry Common Knowledge > Flashcards

Chemistry Common Knowledge Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Chemistry flashcards Periodic Table flashcards Chemistry 101 flashcards Organic Chemistry 101 flashcards
1
Q

Shows exact # of Atoms of each Element

A

Molecular Formula

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

Shows which elements are present & the simplest whole number ratio of their atoms

A

Empirical Formula

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

Shows exact # of Atoms of Each Element

A

Molecular Fórmula

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

Properties of metals & non-metals

A

Metalloids

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

Constant composition, cannot be separated into smaller substances by physical process

A

Pure Substance

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

Transforms a sample of matter w/o altering chemical identities of any substance in the sample (ex- changing a liquid to solid)

A

Physical Process

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

Pure substance (cannot be broken down)

A

Element

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

Gold, silver, nitrogen, oxygen, sulfur

A

Pure substances (natural/uncombined)

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

2 or more elements that can only be separated by a chemical reaction

A

Compound

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

2 + substances of matter - each retains its chemical identity (can be separated by physical process)

A

Mixture

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

Uniform mixtures / Solutions

A

Homogeneous

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

Not uniform / not clear / not transparent

A

Heterogeneous

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

Quantity of matter

A

Mass

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

Everything that has mass and takes up space

A

Matter

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

1st elements formed in the universe

A

Hydrogen & Helium

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

Study of the composition, structure, & properties of matter, and its changes

A

Chemistry

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

A concise statement of a relationship between phenomena that is always the same under the same conditions

A

Law

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

Mass X Acceleration =

A

Force

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

Unifying principle- explains a body of facts and/or those laws that are based on them

A

Theory

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

A tentative explanation for a set of observations

A

Hypothesis

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

Compounds always contain the same elements in the same composition

A

Law of Constant Composition

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

Positive charge

A

Cation

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

Negative charge

A

Anion

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

Cannot be separated into simpler substances by chemical means

A

Element

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

Does not alter the composition or identity of a substance

A

Physical change
Ice melting
Sugar dissolving in water

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

Alters the composition or identity of the substances involved

A

Chemical change

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

Of a material that depends upon how much matter is being considered (mass, length, volume)

A

Extensive Property

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

Does not depend upon how much matter is being considered (density, temperature, color)

A

Intensive property

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

Length

A

Meter (m)

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

Mass

A

Kilogram kg

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

Time

A

Second S

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

Electrical Current

A

Ampere A

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

Temperature

A

Kelvin K

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

Amount of substance

A

Mole (mol)

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

Luminous Intensity

A

Candela (cd)

36
Q

Force gravity exerts on an object

A

Weight

37
Q

Occupies space and has mass

A

Matter

38
Q

Quantity of matter

A

Mass kg / gram

39
Q

Force gravity exerts on an object

A

Weight

40
Q

Shows the exact number of atoms of each element H2O2 N2H4

A

Molecular Fórmula

41
Q

Shows which elements are present and the simplest whole number ratio of their atoms

A

Empirical Formula

42
Q

Atomic mass - Atomic number =

A

of neutrons

43
Q

Polyatomic Ions

A

Ions made up of many atoms (2 or more)

44
Q

The Mole

A

Avogadro’s #
6.02 x 10^23 things in 1 Mole

45
Q

The Mole

A

Avogadro’s #
6.02 x 10^23 things in 1 Mole

46
Q

What does 1 mole = ?

A

6.02 x 10^23
Avogadro’s Number

47
Q

Combines with

A

Addition

48
Q

The Sum

A

Addition

49
Q

Increases By

A

Addition

50
Q

Plus

A

Addition

51
Q

The Total of

A

Addition

52
Q

And

A

Addition

53
Q

The difference of

A

Subtraction

54
Q

Minus

A

Subtraction

55
Q

Decreases by

A

Subtraction

56
Q

Less than

A

Subtraction

57
Q

Reduced by

A

Subtraction

58
Q

The product of

A

Multiplication

59
Q

Times

A

Multiplication

60
Q

Of

A

Multiplication

61
Q

The ratio of

A

Division

62
Q

The quotient of

A

Division

63
Q

= and
—> in a chemical equation

A

Form
Produce
Create
Yield
Result

64
Q

4 States in a Chemical Equation

A

Aqueous (aq)
Liquid (l)
Solid (s)
Gas (g)

65
Q

Aqueous

A

Dissolved
Dissociated
Ionized
Aqueous

66
Q

Na+(aq)

A

Aqueous solution of Salt

67
Q

Liquid (l)

A

H2O
Can also be a solid or gas so never assume water is a liquid

68
Q

Solid (s)

A

Precipitate
Metal

69
Q

Gas (g)

A

Vapor
Gaseous
Diatomic molecules

70
Q

Elements that exist in pairs

A

Diatomic Molecules H2, O2, N2, F2, Cl2, Br2, I2

71
Q

Reactants

A

Reacts with or
Combines with

72
Q

Products

A

Forms
Yields
Creates
Results in
Converts into
Produces

73
Q

Combines with

A

Reactant

74
Q

Yields

A

Products

75
Q

Combines with

A

Reactants

76
Q

Forms

A

Products

77
Q

Converts into

A

Products

78
Q

Forms

A

Products

79
Q

Left side of arrow ——-> Right side of arrow

A

Reactants ———> Products

80
Q

Decomposes

A

Decomposition Reaction
AB —->. A + B

Ex. CO2 —-> C + O2

A compound is broken down to multiple products

81
Q

Rust means what type of reaction ?

A

Single Replacement Reaction
A + BC ——> AB + C
Ex.
Mg + 2 HCl ——> MgCl2 + H2
1 single element Mg, replaces another element (H) in a compound to form a new compound + an element MgCl2 + H2

82
Q

Combustion Reaction

A

Combusts or Burns
CxHy + O2 —-> CO2 + H2O
The only thing that changes is CxHy reactant
CxHyO2 + O2 —-> CO2 + H2O
The +O2 js always your reactant and the product is always Carbon Dioxide & Water
Exs.
CH4 + 2O2 —-> CO2 + 2H2O
CH4O + O2 —-> CO2 + 2H2O

83
Q

Keyword Precipitate

A

Precipitation Reaction
Looks like :
Reactants AgNO3(aq) + KCl(aq) area aqueous
——> AgCl(s) + KNO3(aq)
——> and 1 solid is formed
The solid is your Precipitate AgCl(s)

84
Q

Translate word problem:

Gaseous propane C3H8, burns into oxygen gas to produce carbon dioxide gas and liquid water

A

C3H8 is a gas / Burns=combustion reaction
ends with CO2+H2O
C3H8(g) + O2(g)
Produce ——-> tells us our products are Carbon Dioxide (g) & water (l)
C3H8(g) + O2(g) —> CO2(g) + H2O(l)
Our balanced chemical equation looks like :
C3H8(g) + 5 O2(g) —> 3 CO2(g) + 4 H2O(l)

85
Q

Mercury (II) oxide in its metal state decomposes to produce liquid mercury and oxygen

A

Decomposition Reaction AB —> A+B

Mercury (II) oxide solid state
Produce = —->
HgO2(s) ——> Hg(l) + O2(g)
Oxygen is a diatomic molecule that exists in pairs and it is a gas

86
Q

Molarity OF Dilutions
How to use and translate : OF

Ex. O.2 L of 15.0 M
Volume. Molarity or Concentration (M)
(mL or L). Of a Solution

A

Dilutions formula for
Molarity (M) —> M1V1 = M2V2
Molarity1Volume1=Molarity2Volume2
Concentration (M)—-> C1V1 = C2V2
Still measured in molatity

Chemistry 1 (10 decks)

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