From Particles to Solutions

Chemistry 01

Learning Goals!!

• I will be able to explain the particle theory of matter.

• I will be able to classify matter using the terms: pure substance, element, compound, mechanical mixture and solution

What is CHEMISTRY!?

• The study of matter and the changes it undergoes

Matter …

• Anything that has mass and takes up space.

The Particle Theory of Matter

• All matter is made up of different kinds of particles

• Different substances are made up of different types of particles

• Particles are in constant random motion

• Particles move faster when heated, and slower when cooled

• Particles attract each other

Lists

• Create a list of 15-20 items you’ve used, eaten, seen, etc. in the last day or two.

• Save this list for later.

Pure Substances

• Made up of only one type of particles

• Any element from the Periodic Table

• Any compound (like distilled water, carbon dioxide)

Mixtures

• Made up 2 or more types of particles

• Mechanical mixture – you are able to see the different particles • pizza, oil and vinegar, cereal

• Solution – a mixture where you can’t see the different particles and you can see through it • apple juice, air in this room

• Alloy – a solid solution of two or more metals. • i.e. Bronze -> Copper + Tin

Classification of Matter

MATTER

PURE SUBSTANC

ESMIXTURES

ELEMENTS

i.e: H, O, C

COMPOUNDS

i.e: H2O, NaCl

SOLUTIONS

i.e: H2O + salt

MECHNICAL

MIXTURESi.e: H2O +

raisins

Can combine to form

Learning Goals Revisited

• I will be able to explain the particle theory of matter.

• I will be able to classify matter using the terms: pure substance, element, compound, mechanical mixture and solution

Task

• Go back to your list. Try to determine what type of matter each item is. i.e. if you had pizza it would be a mechanical mixture.

• Share list with your partner

• Complete poem Qs

• Textbook p178 #2-6, 8.