Chemistry S3

1.1 Recording the observations of chemical reactions

2.1 Preparing a compound by direct combination of elements

2.2 Tests for oxygen and carbon dioxide

3.1 Crystallization

3.2 Extracting common salt from sea water

3.3 Isolating pure water from sea water

3.4 Test for the presence of sodium in common salt

3.5 Test for the presence of chloride in common salt

3.6 Test for the presence of water in different samples

4.1 Investigating the actions of heat, water and acids on calcium carbonate

4.2 Performing chemical tests for calcium carbonate