Unit 1: Intro to Matter

Question 1

Matter has 3 classifications

Answer 1

The state, property, and composition

Question 2

Physical state refers to (3)

Answer 2

whether matter is solid, liquid or gas.

Question 3

Solids

Answer 3

distinct shape, specific volume, cannot be compressed.

Question 4

Liquids

Answer 4

specific volume, no distinct shape, compressed slightly.

Question 5

Gases

Answer 5

no distinct shape or volume. Highly compressible.

Question 6

What are the four classifications of properties

Answer 6

Physical, chemical, intensive, extensive

Question 7

physical properties are measured without changing the

Answer 7

identity and composition

Question 8

Chemical properties describe

Answer 8

how a substance may change, or react, to other substances.

Question 9

Intensive properties

Answer 9

Describe the quality of a substance (color)

Question 10

Extensive properties

Answer 10

depend on the quantity of a substance (weight)

Question 11

Composition

Answer 11

What matter is made out of

Question 12

Mixture

Answer 12

combination of easily separated substances

Question 13

A pure substance cannot..

Answer 13

be easily separated into multiple pieces

Question 14

Homogeneous mixtures

Answer 14

appear to be uniform throughout

Question 15

Heterogeneous mixtures

Answer 15

do not appear to be uniform throughout

Question 16

Distillation

Answer 16

separates volatile liquids from less volatile liquids

Question 17

Filtration

Answer 17

separates solid from liquid or solids of varying sizes

Question 18

Centrifugation

Answer 18

separates liquids of different density, or removes solid particles from a suspension (separate plasma from red blood cells)

Question 19

Chromatography

Answer 19

separates multiple solid, liquid, or gaseous components dissolved in a liquid or gaseous medium (separate protein & DNA)

Question 20

Adsorption

Answer 20

separates components from gas or liquid medium based on their polarity or reactivity. (Bad smell absorption)

Question 21

A pure substance has __ composition and __ properties.

Answer 21

constant composition and distinct properties

Question 22

Compound

Answer 22

several elements bonded in a chemical fashion

Question 23

Law of constant composition

Answer 23

Elemental Composition of a Pure Compound is always the same.