Core Chemistry Topics 3&4

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1. How do indigestion tablets work?

  • Replaces excess stomach acid with hydrochloric acid in tablet
  • Contain bases like calcium carbonate to neutralise stomach acid
  • Kills bacteria in stomach
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Other questions in this quiz

2. What is the test for oxygen?

  • makes a squeaky pop with a lighted splint
  • relights a glowing splint
  • bleaches damp litmus paper white

3. Metal carbonates give which products?

  • salt + water + carbon dioxide
  • salt + hydroxide
  • salt + water
  • salt

4. Why do metals rust?

  • because it has been exposed to too much carbon dioxide
  • because the metal has lost oxygen (reduction)
  • because the metal is being oxidised (gain of oxygen)
  • because it has been exposed to too much water

5. What products will be made when reacting hydrchloric acid + sodium hydroxide?

  • Sodium chloride + water
  • sodium chloride
  • sodium + hydrogen
  • sodium chloride + water +carbon dioxide


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