Across
- 5. a reaction where two reactants combine to form a single product
- 6. bags of chips are usually filled with _________ gas
- 7. a substance that undergoes a chemical change in a reaction
- 8. a substance which turns from green to white when heated
- 10. most reactive metal
- 11. during a double displacement reaction, _____ are exchanged
- 12. corrosion and rancidity are _______ reactions
- 13. common name of calcium hydroxide
- 15. 2Mg+O2 = 2MgO is a _______ reaction
- 16. acid-metal reactions are ________ reactions
Down
- 1. an insoluble solid formed during a double displacement reaction
- 2. gas evolved when an acid reacts with a metal
- 3. a magnesium ribbon burns in _____ colour
- 4. reaction where light causes the breakdown of a subtance
- 5. substance that speeds up a chemical reaction
- 9. brown gas produced during the decomposition of lead nitrate
- 14. CaO + H20 is a ______ reaction (exothermic/endothermic)