Across
- 3. bonds that are made by sharing of electron
- 4. metal that reacts with acid to give H2 gas
- 6. smallest unit of a matter
- 7. oxidised fat or oil
- 8. 4 carbon compound with ketone group
Down
- 1. mixture of 2 or more metal
- 2. treat indigestion
- 3. Rusting of iron is known as
- 5. acid reacts with base and make salt