5
2Keywords:
acid-base reactions
acids
changes
indicators
neutralisation
pH scale
Explain how to test if a solution is an acid or not, and describe and explain what happens if rusty nails are put in an acid. Assessment focus: acid reactions.
2
4
7
10
4
6
2
1
0
0
4
2
4
5
7
7
13
5
2
1
5
6
5
2
4
