Matter, Changes of state

Question 1

What is Matter?

Answer 1

Anything that has mass and takes up space.

Question 2

What are Solids?

Answer 2

Solids have a definite shape and volume and they are difficult to penetrate.
(Solids have strong bonds)

Question 3

What are Liquids?

Answer 3

Liquids have no shape, but they take the shape of the container they are in.
(Liquids have weak bonds)

Question 4

What are Gases?

Answer 4

Gases have no shape or volume. Gases will fill what space is available.
(Gases have no bonds)

Question 5

What is Mass?

Answer 5

Mass is the amount of matter contained in an object.

Question 6

Solid to liquid.

Heat added or removed?

Answer 6

Added.

Question 7

Liquid to gas.

Heat added or removed?

Answer 7

Added.

Question 8

Gas to solid.

Heat added or removed?

Answer 8

Removed

Question 9

Condensation.

Heat added or removed?

Answer 9

Removed

Question 10

Fusion.

Heat added or removed?

Answer 10

Added

Question 11

Freezing.

Heat added or removed?

Answer 11

Removed

Question 12

Condensation: what is the change of state?

Answer 12

Condensation: Gas —> Liquid

heat released

Question 13

Deposition: what is the change of state?

Answer 13

Deposition: Gas –> Solid

heat released

Question 14

Evaporation: what is the change of state?

Answer 14

Evaporation: Liquid –>Gas

heat added

Question 15

Melting: what is the change of state?

Answer 15

Melting: Solid –> Liquid

heat added

Question 16

Solidification: what is the change of state?

Answer 16

Solidification: Liquid –> Solid

heat released

Question 17

Sublimation: what is the change of state?

Answer 17

Sublimation: Solid –> Gas

heat added

Question 18

What is Chemistry?

Answer 18

Chemistry is the science that deals with the COMPOSITION, STRUCTURE, and PROPERTIES of MATTER and the TRANSFORMATION which matter undergoes.

Question 19

True or False.

Matter is anything that has mass & occupies space.

Answer 19

True.

Question 20

True or False.

Particles are ALWAYS moving.

Answer 20

True.

Question 21

All matter is made up of extremely tiny __________.

Answer 21

Particles.

Question 22

Particles ____________ each other.

Answer 22

Attract

Question 23

True or False.

Particles a low temperature move at a faster rate than particles at high temperature.

Answer 23

False.

Particles at HIGH temperature move at a FASTER rate than particles at LOW temperature.

Question 24

What is the temperature at which ice turns to water called?

Answer 24

The melting point.

Question 25

What is the temperature at which water turns to water vapor called?

Answer 25

The boiling point.

Question 26

What are the 3 states of matter?

Answer 26

Solid, liquid, and gas.

Question 27

What is an atom?

Answer 27

An atom is the smallest unit of matter that can take part in a chemical change.

Question 28

What is a molecule?

Answer 28

A molecule is a group or cluster of atoms bonded together.

Question 29

What is Physical Property?

Answer 29

Physical Property is any property or characteristic of a substance that can be observed WITHOUT forming a new substance.

Question 30

What is Chemical Property?

Answer 30

Chemical Property is any characteristic of a substance that describes the ABILITY of a substance to react with another substance.

Question 31

True or False.

In a physical change the substance involved changes

Answer 31

False.

In a physical change the substance involved remains the SAME.