Pure Substances and Mixtures Review Guide

Pure Substances and Mixtures Review Guide
1.
Matter is anything that has
and
three states of matter are
2.
,
. The
and
.
Name 4 main points of the particle theory of matter.
1)
2)
3)
4)
3.
The particle theory states that all matter is made up of
These particles are too
.
to be seen by the naked eye. The more
that the particles have, the faster they move. Particles move
at high temperatures and slower at low temperatures. Particles also
have
forces between them. In a gas these forces are weak
and in a solid these forces are
. The particle theory also states that there
are spaces between particles. In a solid the spaces are
spaces are
and in a gas the
.
**Be prepared to apply the particle theory to explain the behaviour of
particles in different sates of matter and in different situations.
4.
Draw 3 diagrams representing the particles in a solid, liquid and gas. Use arrows
to show movement.
Solid
Liquid
Gas
5.
What is unique about the kinds of particles are in a pure substance?
6.
How many different substances can be in a homogeneous mixture?
7.
How many different substances can be in a heterogeneous mixture?
8.
Which type of mixture is considered to be an even mixture?
9.
What is another name for a homogeneous mixture?
A heterogeneous mixture?
10. Define the term “properties” and give 2 examples.
11. When using a Venn Diagram to compare properties of different substances, list 5 properties
that can be compared.
1)
2)
3)
4)
5)
12. Use a Venn Diagram to compare 4 properties of sugar and water.
Sugar
Water
Sugar
Water
Solution
13. In a solution, the
is the part of the mixture that gets dissolved,
while the
is the part of the mixture that the substance dissolves into.
14. Name the solutes and solvents in the following mixtures.
a) salt and water
solute =
solvent =
b) Jell-O
solute =
solvent =
c) black coffee
solute =
solvent =
d) air
solute =
solvent =
e) steel
solute =
solvent =
15. How do the following factors affect the rate of dissolving?
a) Higher Temperatures?
b) Greater Surface Area?
c) Agitation (stirring)?
16.
What does solubility refer to? (text p. 32)
17. In a saturated solution the space between the solvent particles are
18. What type of solution has only some of the available spaces between the solvent
particles filled?
19. According to the particle theory, explain why you would expect solubility to
change with temperature.