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Atoms and Molec...

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  • Question 1
    1 / -0

    Which one of the following phrases would be incorrect to use?

  • Question 2
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    The same proportion of carbon and oxygen in CO2 obtained from different sources proves the law of

  • Question 3
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    The law of constant proportion was proposed by

  • Question 4
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    1.0 mole CO2 contains

  • Question 5
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    The mass of one atom of carbon-12 is

  • Question 6
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    The percentage of hydrogen in water is

  • Question 7
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    The atom is indivisible, was proposed by

  • Question 8
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    One atomic mass unit of carbon-12 is

  • Question 9
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    Modern atomic symbols are based on the method proposed by

  • Question 10
    1 / -0

    Numerical value of Avogadro’s number is

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