Lesson 2

Question 1

Deals with composition, structure, and properties of matter

Answer 1

Chemistry

Question 2

Anything that hasass and occupies space

Answer 2

Matter

Question 3

State of Matter

Answer 3

Solid
Liquid
Gas

Question 4

Their particles are close together, but cannot be compared and cannot move

Answer 4

Solid

Question 5

Particles are close together but not held rigidly in position

Answer 5

Liquid

Question 6

Far apart from each other and are arranged in a random way

Answer 6

Gas/Gases

Question 7

Has no defined shape or Volume

Answer 7

Plasma

Question 8

Water is liquid, when heated, the liquid state changes to gas

Answer 8

Evaporation

Question 9

When vapor molecules slow down and gradually turn back into liquid

Answer 9

Condensation

Question 10

When frozen, extremely slow and move very little. They hold onto each other, turning the water into ice, which is in the solid state

Answer 10

Freezing

Question 11

Ice at room temperature turns the ice back into liquid state

Answer 11

Melting

Question 12

By the addition of heat, solid is converted to gas

Answer 12

Sublimation

Question 13

Occurs when gas is converted to solid

Answer 13

Deposition

Question 14

Characteristics of a certain substance that sets it apart from other substances

Answer 14

Properties of matter

Question 15

Property that becomes evident during a chemical reaction

Answer 15

Chemical Property

Question 16

Property that can be measured or observed without changing the chemical composition of the substance

Answer 16

Physical Property

Question 17

Cannot be used to help identify the a substance because it changes (Extrinsic Property)

Answer 17

Extensive property

Question 18

Can be used to help identify a substance because it does not change with the amount of matter present (Intrinsic Property)

Answer 18

Intensive Property

Question 19

No change in the composition of matter

Answer 19

Physical Changes

Question 20

Solid to Liquid

Answer 20

Melting

Question 21

Liquid to gas

Answer 21

Evaporation

Question 22

Solid to gas

Answer 22

Sublimation

Question 23

Liquid to Solid

Answer 23

Freezing

Question 24

Gas to liquid

Answer 24

Condensation

Question 25

Gas to solid

Answer 25

Deposition

Question 26

There is a change in the composition of matter

Answer 26

Chemical Changes

Question 27

It can be either an element or a compound

Answer 27

Pure Substances

Question 28

Simplest form of matter

Answer 28

Element

Question 29

Elements react with each other

Answer 29

Compound

Question 30

Are composed of two or more substances

Answer 30

Mixture

Question 31

Solution is relatively uniform in composition

Answer 31

Homogeneous mixture

Question 32

A mixture whose composition varies from one position

Answer 32

Heterogeneous mixture

Question 33

Consist of coarse particles which are visible to the naked eye

Answer 33

Suspensions (hetero mixture)

Question 34

Consist of a dispersed phase

Answer 34

Colloids (hetero mixture)

Question 35

Atoms are composed of even smaller particles called as---

Answer 35

Subatomic particles

Question 36

Some atoms of a given element do not have the same mass number

Answer 36

Isotopes

Question 37

Indicates the number of protons

Answer 37

Atomic number

Question 38

Atomic number of the elements is the same with the number of protons

Answer 38

Protons

Question 39

Subtract the atomic mass and atomic number

Answer 39

Neutrons

Question 40

(+) minus the atomic number or protons (-) add the atomic number or protons

Answer 40

Electrons

Question 41

Molecule is combination of at least two atoms in a definite proportion

Answer 41

Molecule

Question 42

Diatomic or polyatomic -more than 2 atoms

Answer 42

Ions

Question 43

Is the written structure of a compound

Answer 43

Chemical Formula