Across
- 3. Photosynthesis is an example of a reaction that absorbs energy; it is __.
- 6. An equation having equal number of atoms on both sides is called __ equation.
- 8. Rusting of iron is an example of this process.
- 9. Fe + CuSO₄ → FeSO₄ + Cu is a __ reaction.
- 10. 2Mg + O₂ → 2MgO is an example of ______.
Down
- 1. Addition of oxygen to a substance.
- 2. White solid formed when AgNO₃ solution reacts with NaCl solution.
- 4. Na₂SO₄ + BaCl₂ → BaSO₄ + 2NaCl is a __ reaction.
- 5. Spoilage of oils and fats due to oxidation.
- 7. CaCO₃ → CaO + CO₂ on heating is this type of reaction.