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Chemical Equations and Formulae Quiz
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Chemical Equations and Formulae Quiz

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@CohesiveBamboo

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Questions and Answers

What is the purpose of using chemical formulae instead of words in chemical equations?

  • To violate the law of conservation of mass
  • To make the equations longer and less useful
  • To make the equations more concise and useful (correct)
  • To confuse students

    • What does a chemical equation represent?

  • A chemical reaction (correct)
  • A mathematical equation
  • A physical change
  • A chemical formula

    • Why is it important to ensure that the number of atoms of each element is the same on both sides of a chemical equation?

  • To violate the law of conservation of mass
  • To satisfy the law of conservation of mass (correct)
  • To make the equation unbalanced
  • To confuse students

    • What does a skeletal chemical equation represent?

    <p>An unbalanced reaction</p> Signup and view all the answers

    What does the law of conservation of mass state?

    <p>The total mass of the elements in products must be equal to the total mass in reactants</p> Signup and view all the answers

    Why do we need to balance a skeletal chemical equation?

    <p>To comply with the law of conservation of mass</p> Signup and view all the answers

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