Mastering Chemical Equations
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Questions and Answers

Which is the most concise way to represent the chemical equation for the burning of magnesium in air?

  • Mg + O2 → MgO2
  • Magnesium + Oxygen2 → Magnesium Oxide
  • Mg + O2 → MgO (correct)
  • Magnesium + Oxygen → Magnesium Oxide

    • What does an unbalanced chemical equation mean?

  • The mass is the same on both sides of the equation
  • The mass is not the same on both sides of the equation
  • The number of atoms of each element is the same on both sides of the equation
  • The number of atoms of each element is not the same on both sides of the equation (correct)

    • What does a skeletal chemical equation represent?

  • A chemical equation with chemical formulae
  • A balanced chemical equation
  • An unbalanced chemical equation (correct)
  • A concise chemical equation

    • What is the chemical formula for magnesium oxide?

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

    What is the chemical formula for oxygen?

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

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