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Some Basic Conc...

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  • Question 1
    1 / -0

    Formula mass is used for which of the following substances?

  • Question 2
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    Which of the following is an element?

  • Question 3
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    Substances whose two or more components completely mix with each other to make a uniform composition are called:

  • Question 4
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    Which of the following is a compound?

  • Question 5
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    Arsenic is a/an:

  • Question 6
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    A pure substance can only be:

  • Question 7
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    Which of the following is a characteristic property of both mixtures and compounds?

  • Question 8
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    The correct relationship between picometer and nanometer is

  • Question 9
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    One sample of air is found to have 0.03% carbon dioxide and another sample 0.02%. This illustrates that:

  • Question 10
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    Which one of the following is not a mixture?

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