Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

AP Chemistry > Ch 1 Notes > Flashcards

Ch 1 Notes Flashcards

1
Q

Chemistry is?

A

The study of properties of matter and the changes matter undergoes

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

What do chemists do?

A

They study components of matter and their relative amounts, how components can be separated, and how mixing a substance with another changes the properties of that substance

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

Matter is?

A

Anything that occupies space and has mass

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

Heterogeneous

A

Nonuniform

Uneven texture, different components that can be seen under a microscope

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

Homogeneous

A

Uniform - Solutions

Two or more substances in the same state, same properties in all regions

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

Pure Substance

A

Fixed composition
Distinct properties
Free of impurities, cannot be separated by any physical technique

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

Solutions

A

Homogeneous mixture

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

Compounds

A

Elements united in fixed ratios by a chemical bond
Elemental properties change
% Composition by mass is always the same

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

Elements

A

Cannot be subdivided by chemical or physical processes

Substances composed of only one type of atom

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

Kinetic-Molecular Theory

A

All matter exists of extremely tiny particles which are in constant motion
Higher temp means faster movement

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

Solids

A

Particles packed closely together in a regular array

Vibration happens but particles do not move past each other - rigid substance

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

Liquids

A

Particles arranged randomly, fluid, particles are not confined to a specific spot, can move past each other

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

Gases

A

Particles under normal conditions are far apart, particles move rapidly because they’re not constrained. Random motion allows particles to fill the container.

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

Macroscopic

A

Observations and experiments; changes we can see

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

Particulate (submicroscopic)

A

Atoms and molecules are modeled using symbols

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

Separation

A

Used to purify physical or chemical properties

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

Filtration

A

Uses differences in solubility

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

Evaporation

A

Uses solute and solvent differences

19
Q

Distillation

A

Uses differences in boiling point

20
Q

Chromatography

A

Uses differences in ability to adhere to surfaces

21
Q

Fractional Crystallization

A

Uses differences in solubility at different temperatures

22
Q

Atoms

A

Smallest particle of an element that retains the chemical properties of that element

23
Q

Molecules

A

Smallest discrete units that retain the composition and chemical characteristics of a compound

24
Q

Physical Properties

A

color - state - melting point - density - boiling point - solubility - conductivity - malleability - ductility - viscosity
Can be measured without changing the identity of the substance

25
Temperature Dependence
The numerical values for some physical properties will change with temperature
26
Extensive Properties
Dependent on the amount of substance
27
Intensive Properties
Independent of the amount of substance
28
Physical Changes
Changes in appearance or state while preserving identity of a substance
29
Chemical Changes
Changes where the identity of a substance is altered through a chemical reaction where reactants are transformed into products described by a chemical equation
30
Precision
How well multiple determinations agree with each other
31
Accuracy
Agreement of a measurement with an accepted value for that element
32
Standard Deviation
A measure of precision
33
True or False | The mass and number of atoms in a chemical reaction is conserved?
True
34
True or False | The molecules and number of moles in a chemical equation is constant
False
35
Temperature Dependence
The numerical values for some physical properties will change with temperature
36
Extensive Properties
Dependent on the amount of substance
37
Intensive Properties
Independent of the amount of substance
38
Physical Changes
Changes in appearance or state while preserving identity of a substance
39
Chemical Changes
Changes where the identity of a substance is altered through a chemical reaction where reactants are transformed into products described by a chemical equation
40
Precision
How well multiple determinations agree with each other
41
Accuracy
Agreement of a measurement with an accepted value for that element
42
Standard Deviation
A measure of precision
43
True or False | The mass and number of atoms in a chemical reaction is conserved?
True
44
True or False | The molecules and number of moles in a chemical equation is constant
False

AP Chemistry (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions