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Unit 1 - Atoms and Matter

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    Changes in matter and Counting Atoms
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  • How many atoms are in H₂O?
    3
  •  15
  • How many atoms are in CO₂?
    3
  •  15
  • How many oxygen atoms are in C₆H₁₂O₆?
    6
  •  15
  • How many total atoms are in NaCl?
    2
  •  15
  • How many hydrogen atoms are in NH₃?
    3
  •  15
  • How many atoms are in MgO?
    2
  •  15
  • How many carbon atoms are in CH₄?
    1
  •  15
  • How many total atoms are in Na₂O?
    3
  •  15
  • How many atoms are in O₂?
    2
  •  15
  • How many oxygen atoms are in H₂O₂?
    2
  •  15
  • How many total atoms are in 2H₂O?
    6
  •  15
  • How many oxygen atoms are in 3CO₂?
    6
  •  15
  • How many hydrogen atoms are in 4NH₃?
    12
  •  15
  • How many atoms are in 2NaCl?
    4
  •  15
  • How many carbon atoms are in 5CH₄?
    5
  •  15
  • How many oxygen atoms are in 2C₆H₁₂O₆?
    12
  •  15