Topic 1

Question 0

Particle model of matter ??

Answer 0

1. All matter I made up of extremely tiny particles
2. each pure substance has its own kind of particles of other pure substances
3. particles attract each other
4. Particles are always moving
5. higher temperature = faster movement & lower temperature = slower movement

Question 1

What are the 2 types of mixtures and explain

Answer 1

Homogeneous - mixture that seems the same & Heterogeneous - you an clearly see the different parts

Question 2

What are three types of heterogeneous mixtures and explain

Answer 2

1. Ordinary Mechanical mixtures - parts are clearly different and separated
2. Suspension - larger particles that are uniformly mixed but will eventually settle
3. Colloid - Fine particles evenly distributed through out a second substance

Question 3

What is a pure substance and the two types?

Answer 3

A pure substance that contains one kind of Particle. Element & Compound

Question 4

What’s an element ?

Answer 4

A pure substance made up of one type or particle, cannot be broken down into simpler substances

Question 5

What’s a compound ?

Answer 5

A pure substance made up of two or more elements chemically joined together

Question 6

What’s a physical property and examples?

Answer 6

Any property that can be observed or measured without forming a new substance , example colour, texture and smell

Question 7

What is qualitative and quantitative ?

Answer 7

Qualitative -described but not measured (quality) colour, smell ect..
Quantitative - can be measured numerically ( quantity )

Question 8

What is Chemical properties ?

Answer 8

Describes how a substance will react with another substance. How it reacts with water, with air, with acid ect..

Question 9

Matter can come in _____ , _______ and ________.

Answer 9

Solid, liquids and gasses

Question 10

Solid liquids and gasses can be separated in 2 groups, what are they?

Answer 10

Mixtures & pure substances

Question 11

An emulsion is a type of?

Answer 11

Colloid