C3: Water

Hey, here is a document mainly for students taking AQA Triple Science. It has information from the C3 (chemistry) section on drinking water, soft water, hard water and the water cycle. I hope this helps you to revise! Please rate and comment on how to improve :D

HideShow resource information
Word Document 829.09 Kb

Pages in this set

Page 1

Preview of page 1
C3: Drinking Water

The water we drink is not pure water because it contains dissolved

It should be safe to drink, which means it does not contain
anything that could cause us harm.

Some of the dissolved substances are beneficial to our health but
some cause hard water.


Page 2

Preview of page 2
The solubility of a solute in water, or any other solvent, is usually
given in grams of solute per 100 grams of water (or solvent) at
that temperature.

The solubility of most solutes that are solids increases as the
temperature increases.

A saturated solution is one in which no more…

Page 3

Preview of page 3
Hard water reacts with soap to form scum and so more soap is
needed to form lather.

Hard water contains dissolved compounds, usually of calcium or

The compounds are dissolved when water comes into contact
with rocks.

Using hard water can increase costs because more soap is


Page 4

Preview of page 4
Pure water can be produced by distillation.


No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »