chemistry C3.3

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Across
  1. 4. a chemical reaction that takes place between an oxidating substance and a reducing substance
  2. 10. the reaction between and acid and a base or alkali to form salt and water.
  3. 12. loss of oxygen, gain of electrons
  4. 13. a substance in a redox reaction that accepts electrons from a reducing agent
Down
  1. 1. Gain of oxygen, loss of electrons
  2. 2. A negatively charged ion made of oxygen and hydrogen
  3. 3. A positively charged ion formed of a hydrogen atom that has lost its electron
  4. 5. the substance that is oxidised by donating electrons, the substance that takes oxygen away
  5. 6. have a large amount of solute compared to solvent
  6. 7. have a small amount of solute compared to solvent
  7. 8. acids and bases that are partially ionised in an aqueous solution
  8. 9. acids and bases that are completely ionised when dissolved
  9. 11. a solution in which the solvent is water