Significant Figures and Mixtures Quiz
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Questions and Answers

According to the rules for significant figures, the sum of 0.027 gram and 0.0023 gram should be expressed as

  • 0.03 g
  • 0.030 g
  • 0.029 g
  • 0.0293 g (correct)

    • Which measurement contains three significant figures?

  • 0.050 g
  • 0.056 g
  • 0.05 g
  • 0.0563 g (correct)

    • Which is a characteristic of all mixtures?

  • Their composition generally can be varied
  • They are homogenous
  • They are heterogeneous (correct)
  • Their composition is generally fixed

    • Rutherford’s famous experiment using alpha particles to bombard a thin sheet of gold foil indicated that most of the volume of the atoms in the foil is taken up by

    <p>Empty space</p> Signup and view all the answers

    Compared to the entire atom, the nucleus of the atom is

    <p>Smaller and contains most of the atom's mass</p> Signup and view all the answers

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