1. Unit F Simple Chemical Reactions St. Mary´s College Form 1 T

2. Unit learning map St. Mary´s College Form 1G F1 Changing Materials F2 Acids and Metals F3 Acids and Carbonates F4 Firefighting F5 Burning Changes F6 Getting Hotter Unit F Simple Chemical Reactions

3. About acids... Acids react with metals to make hydrogen. Acids react with carbonates to make Carbon Dioxide.

4. A Test for carbon Dioxide limewater Carbon dioxide is a colourless gas; Carbon dioxide does not burn as hydrogen; Carbon dioxide gas turns limewater milky. 1 2 3 What happens to limewater when calcium carbonate is added to acid?

5. Metals and Chemical reactions e.g zinc + sulphuric acid zinc sulphate + hydrogen Acids and Carbonates calcium carbonate + hydrochloric acid carbon dioxide + calcium chloride + water Metal carbonate + acidcarbon dioxide + salt + water Metal + acid salt + hydrogen Acids and Metals