L2 | MATTER | Macroscopic properties

Question 1

Boiling point

Answer 1

The temperature of a liquid where its vapor pressure is equal to the external atmospheric pressure

Question 2

Melting point

Answer 2

The temperature at which a solid, if it gets enough heat, becomes a liquid.

Question 3

Homogeneous mixture

Answer 3

A mixture with a uniform composition in which all components are in the same phase.

Question 4

Hetrogeneous mixture

Answer 4

A mixture with a non-uniform composition whose components can be easily identified.

Question 5

Element

Answer 5

Pure substance consisting of one type of atom

Question 6

Compound

Answer 6

Pure substance consisting of two or more different elements

Question 7

Pure substance

Answer 7

A substance that cannot be broken down into simpler components by physical methods.

Question 8

Electrical conductor

Answer 8

A material that allows the flow of charge

Question 9

Semiconductor

Answer 9

A substance that can conduct electricity under certain conditions, but not under other conditions, and which makes a good medium for the control/control of electric current

Question 10

Insulator

Answer 10

A material that prevents the flow of charge

Question 11

Thermal conductor

Answer 11

It is a material that easily transmits heat.

Question 12

Thermal non-conductor (Insulator)

Answer 12

A material that does not transmit heat.

Question 13

What is Matter?

Answer 13

Matter is anything that has mass, and that occupies space.

Question 14

How many phases does matter consist of?

Answer 14

3 phases.

Question 15

What are the 3 phase states?

Answer 15

Solids, liquids, and gases.

Question 16

What is all matter made up of?

Answer 16

Made up of elements found on the Periodic Table.

Question 17

How many parts can the properties of matter can be divided into?

Answer 17

2 PARTS

Question 18

What are the 2 Parts of matter?

Answer 18

1. Macroscopic properties
2. Microscopic Properties

Question 19

What are Macroscopic properties?

Answer 19

These can be perceived with your senses.

Question 20

What are Microscopic Properties?

Answer 20

Cannot be perceived by your senses.

Question 21

What are Mixtures

Answer 21

• Components are not in a specific ratio.
• Components retain their unique properties
• Component can be separated easily

Question 22

We get 2 different types of mixtures, what are they?

Answer 22

1. Homogeneous mixture
2. Heterogeneous mixtures

Question 23

What are Homogeneous mixtures?

Answer 23

• Mixture with a uniform composition
• Components are in the same phase state
• The composition of the mixture will remain constant for a period of time.

Examples: air alloys, soft drinks

Question 24

What are Heterogeneous mixtures?

Answer 24

• Mixture consisting of non-uniform particles.
• Particles can be distinguished from each other.
• Particles are not in the same phase state

Examples: Jar food, soft drinks with ice cubes in them, mixed vegetables, mud water, smoke.

Question 25

What are Pure substances?

Answer 25

Elements or compounds.

Question 26

What is a element?

Answer 26

• A pure substance consisting of only one type of atom.
• A substance that cannot be broken down into simpler substances.
• Particles cannot be broken down.
• The smallest particle is an atom

Question 27

What are Compounds?

Answer 27

• A pure substance consisting of 2 or more types of atoms that are chemically bonded.
• A substance that can be broken down into smaller particles.
• Particles can only be broken down by chemical means.
• Smallest particle is a molecule or ion.