Acids

Edit Answers
123456789
Across
  1. 3. a sign which shows that something exists
  2. 6. A change that occurs as a result of mixing two or more materials together. The reaction forms new materials with different properties from the original
  3. 9. a colorless, odorless gas, present in the atmosphere. Plants and animals and some chemical reactions give it off
Down
  1. 1. a chemical that has a characteristic sour taste
  2. 2. something used to detect the presence of a substance within a mixture of substances
  3. 4. The amount of material dissolved in a measure of liquid; the more material dissolved in the liquid, the more concentrated the solution
  4. 5. an indicator used to test for the presence of acid
  5. 7. An essential acid in human nutrition. It is also called ascorbic acid
  6. 8. an indicator used to test for the presence of Vitamin C