acids and alkalies

HideShow resource information
Preview of acids and alkalies

First 107 words of the document:

-When we dissolve a substance in water the solution could be
1. Alkalis
2. neutral
3. acidic
acids form h+ ions when added to water
alkalis from OH- ions when added to water
Bases are substance which neutralise acids
Measuring acidity or alkalinity
- use indicators which change colour
- litmus paper is a well known indicator
- we use PH scale to see how acidic or Alkalis a solution is
ph scale is from 0-14
- 0-6 PH is acidic
- 7PH is neutral
-7-14PH is Alkalis


No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all resources »