Chapter 1.2 Classifications of Matter

Question 1

2 ways of classifying matter

Answer 1

According to

1. PHYSICAL STATE ( gas, liquid, solid)
2. COMPOSITION ( element, compound, or mixture)

Question 2

PHYSICAL STATE

Answer 2

refers to to whether a matter is in the form of a gas, liquid, solid

Question 3

the 3 physical STATES OF MATTER

Answer 3

1. gas
2. liquid
3. solid

They all differ in their observable properties

Question 4

COMPOSITION

Answer 4

refers to kind of atoms that make up matter and whether it is a element, compound, or mixture

Question 5

GAS

Answer 5

aka vapor

1. has no fixed volume
2. has no fixed shape
3. rather it conforms to the volume and shape of its container

(a gas can be compresses to occupy a smaller volume or it can expand to to occupy a larger one)

Question 6

LIQUID properties

Answer 6

1. Has a distinct volume independent of its container ( takes up the same amount of space regardless of the container)
2. has no shape ( It assumes the shape of the portion of the container it occupies)
3. Can not be compressed

Question 7

VOLUME

Answer 7

the amount of 3 dimensional space that a substance or object occupies, or that is enclosed within a container,

Question 8

SOLID

Answer 8

1. definite volume
2. definite shape
3. can not be compressed

Question 9

The **properties of gas on a molecular level **

Answer 9

1. molecules are far apart
2. molecules move at high speeds
3. ” constantly colliding with the each other and the wallof the container

Question 10

What occurs to gas when it is compressed

Answer 10

1. decreases the amount of space between the molecules and
2. Increases the frequency of collisions between molecules
3. but does not alter the shape or size of the molecules

Question 11

The molecular properties of a LIQUID

Answer 11

1. molecules are packed tighet together than in a gaseous state
2. ” Move rapidly ( the rapid movementallows the molecules to pour over one another)

Question 12

Why does liquid pour easily

Answer 12

The rapid movement of the molecules that are packed togehter tightly slide over one another instead of collide.

Question 13

The molecular properties of a SOLID

Answer 13

1. molecules are held tightly together in a definite/fixed arrangement
2. ” are only able to wiggle in the fixed position

Question 14

liquid vs solid on a molecular level

Answer 14

1. The distances of the molecules are the same
2. the amount of movement are different

liquids–move rapidly

solids wiggle in a fixed position

Question 15

What can lead in a change in of states

( change in property)

Answer 15

1. temperature

and/or

2. pressure

Question 16

The 3 forms (states) of Matter are

Answer 16

1. Gas
2. Liquid
3. Solid

Question 17

ELEMENTS

Answer 17

1. Substances that cannot be broken down into simpler substances
2. They are the different kinds of atoms that exist.
3. If it is on the periodic table then it is an element