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Counting Atoms

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  • Total # of atoms? Na₂CO₃
    6
  • Total # of atoms? 3Li₃SO₃
    21
  • Total # of atoms? 3HCl
    6
  • If there is no subscript to the right of the element, then there is ____ atom/atoms?
    1
  • The number to the left of each element is called the
    coefficient
  • A coefficient in the front of a the formula means you have ____ this number.
    multiply.
  • Total # of atoms? C₂H₅OH
    9
  • Name the elements FeO
    Iron & Oxygen
  • Total # of atoms? 6NH₃
    24
  • Total # of atoms? NaCl
    2
  • Total # of Nitrogen atoms? 4NH₄N₂O
    12
  • Total # of atoms?  2H₂O
    6
  • Total # of atoms? 2KCl
    4
  • Name the elements CO₄
    Carbon & Oxygen
  • The small number to the right of each element is called the
    subscript
  • Total # of Hydrogen atoms? C₂H₅OH
    6
  • Total # of atoms? 10AlCl₄
    50
  • Total # of atoms? 8CO
    16
  • Total # of Oxygen atoms? 4NaO₄H₄
    16
  • Name the elements HCl
    Hydrogen & Chlorine
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