Ionic Compounds and Insoluble Salts

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1. Name the exceptions to being insoluble

  • lead, barium and calcium sulfates
  • potassium, sodium and ammonium carbonates and hydroxides
  • nitrates, sulfates and salts
  • chlorides, sulfates, nitrates and salts of sodium, potassium and ammonium
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Other questions in this quiz

2. What colours do potassium and sodium metals create during a flame test?

  • potassium = purple and sodium = yellow/orange
  • potassium = blue and sodium = red
  • potassium = green and sodium = purple
  • potassium = yellow and sodium = blue

3. What colours do calcium and copper metals create during a flame test?

  • calcium = blue/green and copper = red
  • calcium = purple and copper = red
  • calcium = red and copper = blue/green
  • calcium = orange and copper = pruple

4. Name all of the insoluble substances (including exceptions)

  • sodium, potassium and ammonium carbonates and hydroxides
  • chlorides, sulfates, nitrates and salts of sodium, potassium and ammonium
  • Silver and lead chlorides, lead, barium and calcium sulfates and carbonates and hydroxides
  • nitrates, sulfates and salts

5. What is spectroscopy and why is it used?

  • This is the correct term for a flame test and they are used to find out what element/elements a substance contains.
  • It is when a gaenocologists takes a look at the nether regions of a woman's parts and tries to work out what elements may be stuck in there.
  • It is a test where the patterns of light emitted by the elements in a heated sample are analysed. It is fast and reliable and can be used to detect very small amounts of element in a sample.
  • It is when a sample of an element is placed under an ultra magnifying lense and tiny tiny amounts of the element can be seen. It is very accurate.

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