Precipitation Reactions and Barium Sulphate Formation
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Precipitation Reactions and Barium Sulphate Formation

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Questions and Answers

Which type of reaction involves the gain of oxygen or loss of hydrogen?

  • Double displacement reaction
  • Combination reaction
  • Decomposition reaction
  • Oxidation (correct)
  • What kind of reaction produces insoluble salts?

  • Precipitation reaction (correct)
  • Exothermic reaction
  • Displacement reaction
  • Endothermic reaction
  • In which type of reaction do two or more substances combine to form a new single substance?

  • Decomposition reaction
  • Combination reaction (correct)
  • Double displacement reaction
  • Exothermic reaction
  • What is the opposite of a combination reaction?

    <p>Decomposition reaction</p> Signup and view all the answers

    Which type of reaction involves exchanging two different atoms or groups of atoms?

    <p>Double displacement reaction</p> Signup and view all the answers

    What is the main feature of exothermic reactions?

    <p>Release of heat energy</p> Signup and view all the answers

    In the reaction 4Na(s) + O2(g) → 2Na2O(s), which substance is oxidized?

    <p>Na</p> Signup and view all the answers

    Which reaction involves the loss of oxygen or gain of hydrogen?

    <p>Reduction</p> Signup and view all the answers

    What is a common feature of endothermic reactions?

    <p>Absorption of energy</p> Signup and view all the answers

    Which type of reaction results in the gain of oxygen?

    <p>Oxidation</p> Signup and view all the answers

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