Module 2

Question 1

Is anything that occupies space and has mass. All physical objects are made up of matter and an easily observed properly is its state or phase.

Answer 1

Matter

Question 2

Properties of Matter

Answer 2

1. Physical Properties
   a. Extensive properties
   b. Intensive properties
2. Chemical properties

Question 3

Are properties that can be measured or observed without changing the chemical nature of the substance. Color, Density, Volume, Odor, Melting point, and Boiling point.

Answer 3

Physical Properties

Question 4

Are properties that depend on the amount of matter that is being measured, examples are mass and volume.

Answer 4

Extensive properties

Question 5

Are properties that do not depend on the amount of matter, and it includes odor and color.

Answer 5

Intensive properties

Question 6

Are properties that must lead to a change in the substances chemical structure. Examples, Flammability of combustion, and oxidation.

Answer 6

Chemical properties

Question 7

Changes in Matter

Answer 7

1. Physical change
2. Chemical change

Question 8

Alteration in form or shape of matter only.
Cutting of wood, Grinding of meat.

Answer 8

Physical change

Question 9

Alteration in form of shape and also in the composition of matter.
Burning of paper, metal dissolved in an acid.

Answer 9

Chemical change

Question 10

Is matter that has fixed composition and distinct properties.

Answer 10

Pure substance

Question 11

Two types of Pure substance

Answer 11

Element
Compound

Question 12

Is a pure substance that is composed of only one kind of atom.

Answer 12

Element

Question 13

Is a pure substance which is made up of two or more elements combined in definite proportion.

Answer 13

Compound

Question 14

Types of elements

Answer 14

Metal
Non metal
Metalloid

Question 15

Types of compound

Answer 15

Organic compounds - Contain carbon
In organic compounds - Non carbon

Question 16

Are combinations of two or more substances in which each substance retails its own chemical identity and its own properties.

Answer 16

Mixtures

Question 17

Types of mixtures

Answer 17

Homogeneous mixtures
Heterogeneous mixtures

Question 18

Are those mixtures that are uniform throughout. Also called Solutions. Salt solution, Rubbing alcohol.

Answer 18

Homogeneous mixtures

Question 19

Are those mixtures that do not have the same composition, properties, and appearance throughout. Gravel and sand, and soil.

Answer 19

Heterogeneous mixtures

Question 20

Is the state in which matter maintains a fixed volume and shape.

Answer 20

Solid

Question 21

Types of solid

Answer 21

Amorphous solid
Ex: plastic, rubber, sponge, charcoal

Crystalline
Ex: sodium, chloride, diamonds, quartz

Question 22

Properties of solids

Answer 22

Sublimation
Melting point

Question 23

The conversion of solid into a gas without passing the liquid state.

Answer 23

Sublimation

Question 24

A temperature at which crystals melt.

Answer 24

Melting point

Question 25

Is a state of matter with a definite volume but no definite shape.

Answer 25

Liquid

Question 26

Properties of Liquids

Answer 26

Viscosity Evaporation Boiling point

Question 27

Definite as resistance to flow.

Answer 27

Viscosity

Question 28

Conversion of liquid into gas as vapor.

Answer 28

Evaporation

Question 29

A temperature at which vapor pressure is equal to atmospheric pressure.

Answer 29

Boiling point

Question 30

Is the state in which matter expands to occupy the volume and shape of its container, in other words it has neither definite volume nor shape.

Answer 30

Gas

Question 31

Properties of Gases

Answer 31

They can be expanded They can be diffused They can be compressed They are homogeneous They exert pressure