Science

8th

grade

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Chemical Formulas and Equations

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30 questions

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  • 1. Multiple Choice
    2 minutes
    1 pt
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    This appears on the left side of a chemical formula, and represents how many molecules there are.
    an atom
    the subscript
    a molecule
    the coefficient
  • 2. Multiple Choice
    2 minutes
    1 pt
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    How many hydrogen atoms are in this chemical formula?
    4 hydrogen atoms
    1 hydrogen atom
    2 hydrogen atoms
    3 hydrogen atoms
  • 3. Multiple Choice
    2 minutes
    1 pt
    Image
    How many oxygen atoms are in this chemical formula?
    7 oxygen atoms
    4 oxygen atoms
    3 oxygen atoms
    1 oxygen atom
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