Across
- 4. what alcohol is a ph 4
- 5. what is one of the colours of litmus paper
- 6. what colour is a strong acid
- 7. what is used used in liquid acid and alkalis to see their pH
Down
- 1. what is a neutral solution
- 2. what can be used to test whether it is acid or alkaline
- 3. what is 7 and onwards on the pH scale
- 8. What is one of the colours of litmus paper