Chemistry: Definition and Properties of Salt
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Questions and Answers

What is the definition of a salt?

  • A compound formed by replacing a metallic ion with a hydrogen ion
  • A compound formed by replacing a hydrogen ion with a metallic ion (correct)
  • A compound formed by replacing an ammonium ion with a metallic ion
  • A compound formed by replacing a metallic ion with an ammonium ion
  • Which statement about the solubility of nitrates is true?

  • All nitrates are soluble in water (correct)
  • Most nitrates are insoluble in water
  • Only ammonium nitrate is soluble
  • Only lead(II) nitrate is soluble
  • What determines whether a salt will be soluble or not?

  • The color of the salt crystal
  • The solubility of the salt in water (correct)
  • The shape of the salt crystal
  • The nature of the acid used to form the salt
  • Which group of compounds are generally insoluble?

    <p>Lead(II) sulphate, barium sulphate, and calcium sulphate</p> Signup and view all the answers

    What does it mean when a solution is saturated?

    <p>It contains the maximum mass of the solute that can dissolve at that temperature</p> Signup and view all the answers

    What do solubility curves show?

    <p>How the solubility of a substance varies with temperature</p> Signup and view all the answers

    What is the purpose of heating the mixture in a hot water bath until all the solute dissolves in the practical method described?

    <p>To increase the solubility of the solute</p> Signup and view all the answers

    In the method for making soluble salts, which of the following reactants can be used to produce the desired salt?

    <p>A metal like Fe</p> Signup and view all the answers

    What is the general method for preparing insoluble salts?

    <p>Choosing two solutions containing cations and anions required for the salt</p> Signup and view all the answers

    Which of the following is NOT a method for preparing soluble salts?

    <p>Reacting a metal carbonate with water</p> Signup and view all the answers

    In the preparation of an insoluble salt BaSO4, which ions are involved in the ionic equation?

    <p>Ba2+ and SO42-</p> Signup and view all the answers

    What is involved in the preparation of soluble salts by direct combination?

    <p>Reacting two non-metals directly with each other</p> Signup and view all the answers

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