Chapter 3 - particle Model Of Matter

Question 1

What are the 3 different states of matter?

Answer 1

Liquid
Solid
Gas

Question 2

What are they called when change to one matter to another?

Solid > liquid
Liquid > solid
Solid > gas
Liquid > gas
Gas > liquid
Gas > solid

Answer 2

Melting
Freezing
Sublimating
Evaporation
Condensation 
Deposition

Question 3

Explain the following

Solid
Liquid
Gas

Answer 3

Solid: A solid is harder and its is slower to react because the particles are very tight together.
Liquid: The particles are a bit easier separated so the reaction is faster.
Gas: The particles are very separated to each other so it is harder to react.

Question 4

How to measure volume? (Page 40 GOOD NOTES)

Experiment: For to need to do this experiment you need to use a measuring cylinder, a eureka can, water, a rock…
First you add water in the eureka can. DO NOT FILL IT ENTIRELY, just underneath were the tube is on the Eureka on. You put the rock on a scale for to measure the mas of the rock. Then you add the rock in the eureka that is containing the water. Then water should be coming out through the thin tube. At the end of the tube there should be a measuring cylinder. When the water stops coming out of the eureka can then you read the amount of water that there is in the measuring cylinder.

Answer 4

Eg: Density: 800g÷10cm=80

M=D*V
D=M÷V
V=M÷D

Question 5

Latent heat? Pg 94 (GOOD NOTES PAGE 44)

Is the energy required for to melt something 1cº

SHC:
Water:4200

Latent:
Ice > Liquid= 340,000
Liquid > Gas= 2,260,000

Answer 5

(Change)E=MC(Change)(Difference)cº

Eg: E=300g420010cº=12,600,000Joules

E=m*L

E=300g*4200=12,600,000 joules

Question 6

What is the equation for Pressure?

Answer 6

P=F÷A

An example is:

A helium balloon floats upwards to the atmosphere. As it keeps on rising the atmospheric pressure decreases, this makes the balloon to expand until it popos.