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Physical and Chemical Changes Quiz
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Physical and Chemical Changes Quiz

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Questions and Answers

Which substance is formed when carbon dioxide is passed through lime water?

  • Water (H2O)
  • Lime water
  • Carbon Dioxide (CO2)
  • Calcium Carbonate (CaCO3) (correct)
  • What is the standard test for carbon dioxide?

  • Reacting copper sulphate with iron
  • Passing it through lime water (correct)
  • Burning magnesium in air
  • Mixing vinegar and baking soda
  • In Activity 5.6, what new substance was formed when magnesium was burnt in air?

  • Lime water
  • Water (H2O)
  • Carbon Dioxide (CO2)
  • Ash (correct)
  • What are the new substances formed when copper sulphate reacts with iron?

    <p>Iron Sulphate and Copper</p> Signup and view all the answers

    What is the new substance formed when vinegar and baking soda react?

    <p>Carbon Dioxide (CO2)</p> Signup and view all the answers

    Study Notes

    Chemical Reactions and Substances

    • When carbon dioxide is passed through lime water, calcium carbonate is formed.

    Combustion Reactions

    • The standard test for carbon dioxide is the limewater test, which turns milky when CO2 is present.

    Combustion of Magnesium

    • When magnesium is burnt in air, magnesium oxide is formed.

    Displacement Reactions

    • When copper sulphate reacts with iron, iron sulphate and copper are formed.

    Acid-Base Reactions

    • When vinegar and baking soda react, carbon dioxide and water are formed.

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    Description

    Test your knowledge on physical and chemical changes with this quiz! This quiz will cover topics such as the reaction between carbon dioxide and lime water, and the formation of calcium carbonate. See how well you understand these concepts and their applications, including testing the presence of carbon dioxide in the air we breathe out.

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