Across
- 3. the gain of electrons
- 5. a chemical reaction where the substance(s) reacts with oxygen
- 6. a 2-way reaction (forwards and backwards)
- 8. a reation in which oxygen is added to an element or compound
- 11. a reaction in which a more reactive element displaces a less reactive element from the solution of its salts
- 12. a substance that contains nutrients for crops
Down
- 1. Another words for oxidising agent
- 2. a reaction involving both reduction and oxidation
- 4. number show whether an element has been reduced or oxidised
- 7. conductive surface where oxidation or reduction occurs
- 9. a substance that speeds up a reaction
- 10. no water combined