# Chemical Formulas And Counting Atoms: Question Preview (ID: 30969)

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How many oxygen atoms in CO2 ? |
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a) 1 | b) 2 | c) 3 | d) 4 | |

How many oxygen atoms in 3CO2 ? |
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a) 4 | b) 5 | c) 6 | d) 7 | |

How many atoms in 4NaCl ? |
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a) 2 | b) 4 | c) 8 | d) 12 | |

How many molecules in 12 HOH ? |
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a) 2 | b) 3 | c) 6 | d) 12 | |

How many hydrogen atoms in 12 HOH ? |
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a) 12 | b) 2 | c) 24 | d) 3 | |

How many elements in NaClHNOPS ? |
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a) 1 | b) 7 | c) 9 | d) 14 | |

How many sodium atoms in 5NaClS ? |
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a) 1 | b) 3 | c) 5 | d) 15 | |

How many atoms in 14NaCl ? |
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a) 2 | b) 14 | c) 28 | d) 15 | |

Which is NOT a compound? |
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a) NaCl | b) H2O | c) O2 | d) CO2 | |

How many total atoms are in 4 H2SO4 ? |
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a) 4 | b) 5 | c) 20 | d) 28 | |

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