III. Classifying Matter Flashcards

1
Q

Chemistry:

A

the study of the composition of matter and the changes it undergoes

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

What are the units of matter?

A

Atoms and elements

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

Atoms:

A

the smallest unit of an element that maintains the chemical identity of that element.

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

Element:

A

a pure substance that cannot be broken down into simpler, stable substances and is made of only one type of atom

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

What is matter?

A

Anything that has mass and volume

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

Volume:

A

the amount of three dimensional space an object occupies

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

Mass:

A

a measure of the amount of matter

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

(SOLID) Volume & shape?

A

Definite volume and shape

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

(SOLID) Arrangement?

A

packed close together

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

(SOLID) Movement?

A

Vibrate in a fixed position

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

(SOLID) Attractive Forces/ energy?

A

Very strong force of attraction
Low energy

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

(LIQUID) Volume & shape?

A

Definite volume
NO definite shape

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

(LIQUID) Arrangement?

A

Close together, but can slide past one another

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

(LIQUID) Movement?

A

Move past one another, Slide Flow

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

(LIQUID) Attractive forces/ energy?

A

Strong force of attraction
Medium energy

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

(GAS) volume & shape?

A

No definite volume/shape

17
Q

(GAS) Arrangement?

A

Spread out as far apart as possible

18
Q

(GAS) Movement?

A

Move with great speed

19
Q

(GAS) Attractive forces/energy?

A

Very weak force of attraction
Very high energy

20
Q

Two classes of Matter:

A

pure substance and mixtures

21
Q

Pure substance:

A

has a fixed position composed of just one type of particle (atom or molecule)

22
Q

Pure substances are either what?

A

compounds or elements

23
Q

Elements:

A

the simplest pure substance
can’t be broken down into smaller substances by ordinary means
made up of only one type of atom

24
Q

Compounds:

A

A pure substance- definite composition
Two or more elements combined through a chemical reaction
Composed of a definite group of molecules or ions that are chemically bonded

25
Mixture:
A physical combination of two or more substances Identities and properties of the individual substances are retained Can be separated by physical means
26
The chemical and physical properties of a compound _______from those of the elements that make up the compound.
Differ
27
Difference between compounds and mixtures
- Compound has one set of properties that are diff than the properties of the elements that make up the compound - In a mixture, substances that make up the mixture retain of their properties (ex. salt water) -compounds => definite composition - a formula - Mixtures => no definite composition - varies
28
Types of Mixtures
Homogeneous and heterogeneous
29
Heterogeneous Mixture:
- does not appear to be the same throughout - particles large enough to see and separate from mixture - can see diff substances ex. oil and water
30
Homogeneous Mixture:
- a mixture that appears to be the same throughout - particles do not settle out when left standing ex. air (a solution of nitrogen, oxygen, argon, carbon, etc)
31
A homogeneous Mixture also called a...
A solution