Across
- 5. reaction in which more reactive metal displaces less reactive metal
- 6. Oxidation is addition of..
- 7. positively charged ions are
- 8. colour of Magnesium oxide is
Down
- 1. reduction is addition of..
- 2. colour of copper sulphate solution
- 3. colour of lead iodide is
- 4. substance added to food containing oil and fats