Chemistry: Structure and Bonding of Metals and Nonmetals
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Chemistry: Structure and Bonding of Metals and Nonmetals

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Questions and Answers

What is the difference between the reaction of calcium and strontium with water?

  • Calcium reacts more vigorously but produces less volume of gas.
  • Calcium reacts less vigorously but produces more volume of gas.
  • Strontium reacts more vigorously but produces less volume of gas. (correct)
  • Strontium reacts less vigorously but produces more volume of gas.

    • What is the purpose of the experiment with 0.200 g of strontium and 250 cm3 water?

  • To compare the reaction of strontium with calcium.
  • To measure the rate of reaction.
  • To determine the reactivity of strontium with water. (correct)
  • To calculate the concentration of strontium ions.

    • What is the resulting solution in the reaction of strontium with water?

  • A coloured solution containing strontium ions.
  • A solution containing strontium ions and hydrogen gas.
  • A solution containing strontium ions and water molecules.
  • A colourless solution containing strontium ions. (correct)

    • What is the volume of gas produced in the reaction of strontium with 250 cm3 water?

    <p>Volume of gas is not produced in this reaction.</p> Signup and view all the answers

    What is the equation for the reaction between strontium and water?

    <p>Sr + 2H2O → Sr(OH)2 + H2.</p> Signup and view all the answers

    What is the purpose of calculating the concentration of strontium ions in the solution?

    <p>To determine the stoichiometry of the reaction.</p> Signup and view all the answers

    Why does the student plan to use calcium instead of strontium in the experiment?

    <p>To compare the reactivity of strontium with calcium.</p> Signup and view all the answers

    What is the expected difference between the volume of gas produced by calcium and strontium?

    <p>Calcium produces more gas than strontium.</p> Signup and view all the answers

    What is the general trend in the reactivity of Group 2 metals with water?

    <p>Reactivity increases down the group.</p> Signup and view all the answers

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