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6. What indicator should be used with a strong acid and a weak alkali?
- Methyl Orange
- Phenolphalein
- Both
7. Solubility of Gases increases as...
- Both Increase
- Pressure Increases
- Temperature Increases
8. Soft water readily forms a lather with soap
9. Which is not a way of making hard water soft?
- Adding sodium carbonate
- evaporation
- ion exchange column
- distillation
10. An exothermic reaction is one which
- more energy is released from forming new bonds
- more energy is released from breaking existing bonds
- more energy is taken in from forming new bonds
11. Which form of instrumental analysis cannot be used to identify compounds?
- atom absorption spectrometry
- mass spectrometry
- infred spectrometry
12. Calcium produces what coloured flame in a flame test?
- brick red
- blue
- lilac
- green