Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
- 1Alcohols, Carboxylic Acids and Polymers
Explain why carboxylic acids are described as 'weak acids'.
- 2Chemical Analysis
Describe the result of the test for carbon dioxide.
- 3Tests for Ions, Gases and Flame Tests
A solution forms a green precipitate with sodium hydroxide solution. Which ion is present?
- 4Chromatography and Instrumental Analysis
State two advantages of instrumental methods of analysis, such as GC-MS, compared with manual chemical tests.
- 5Chemistry of the Atmosphere
Give two human activities that increase the amount of greenhouse gases in the atmosphere.
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