5.1 Classification of Matter

Matter

Pure Substances Mixtures

Elements Homogeneous Mixtures

Heterogeneous MixturesCompounds

Copper, hydrogen Water, salt, Carbon dioxide

Salt water, air, metal alloys

Salad dressing, Trail mix

5.1 Classification of Matter

Assignment

○ Create flip chart using definitions and examples

○ P. 156#3-5, 7-12

5.2 Properties of Matter

Physical Properties

○ No new substances formed ○ May be observed, measured,

calculated ○ Viscosity, colour, melting point,

brittleness, state, solubility, boiling point, ductility, magnetism, crystalline structure, hardness, density, lustre, malleability

Chemical Properties

○ New substances are created ○ Describes behaviour as it changes

into a new substance ○ Flammability, reactions with acid,

corrosion

States of Matter

Takes Shape of Container

Expands to Fill Container

Solid

Liquid

Gas

States of Matter

Takes Shape of Container

Expands to Fill Container

Solid No No

Liquid Yes No

Gas Yes Yes

Assignment

○ P. 164 #1-4, 6-9, 12-13

5.3 Changes in Matter

Physical Change

○ Physical changes are changes of form or state

○ Eg cutting grass, ice melting

Chemical Change

○ A chemical change is a change which happens when a substance changes into one (or more) with new properties

○ Eg burning, rusting

Changes of State

How can you tell the difference?Physical Chemical

Reversible

New substances?Properties

Energy Changes

How can you tell the difference?Physical Chemical

Reversible Usually Not usually

New substances?

No Yes

Properties Same Different

Energy Changes

Not noticeable Noticeable

Assignment

○ P. 170#2-6, 11-14

5.4 Kinetic Molecular Theory (KMT)

KMT

○ All matter is made of tiny particles ○ Different substances are made of

different particles ○ The particles are in constant motion ○ The more energy the particles have,

the faster they move ○ The attraction between particles

decreases with an increase in distance

Solids

○ Particles are close together

○ Particles can vibrate in place

○ High attractive force

○ Increase energy, increase vibrations

Liquids

○ Particles close together

○ Particles vibrate, slide past each other

○ High attractive force ○ Increase in energy

increases vibration and movement

Gases

○ Particles far apart ○ Particles vibrate,

move rapidly in straight lines

○ No attractive force ○ Increase energy,

increase pressure

Assignment

○ P. 175 #4, 6-9

Review Assignment

○ p. 180 #1-13