Unit 6

Edit Answers
12345678910
Across
  1. 2. The chemical substances which are formed due to a chemical reaction between two or more chemical substances
  2. 4. the reaction between an acid and a base, which produces a salt and water.
  3. 6. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
  4. 9. the appearance or form of the matter changes but the kind of matter in the substance does not.
  5. 10. a substance that can accept hydrogen ions in water and can neutralize an acid
Down
  1. 1. a small number written at the bottom of the symbol
  2. 3. the kind of matter changes and at least one new substance with new properties is formed
  3. 5. a substance that takes part in and undergoes change during a reaction.
  4. 7. A chemical that gives off hydrogen ions in water and forms salts by combining with certain metals
  5. 8. a figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acid and higher values more alkaline