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    Chemistry
    Grade-9
    Easy

    Question

    Chemical formula for calcium nitrate is

    1. Ca(NO3)2
    2. CaNO
    3. CaNO2
    4. C(NO3)2

    Hint:

    Calcium has a +2 charge and nitrate has a -1 charge.

    The correct answer is: Ca(NO3)2

      • In the chemical formula, metal is written first.
      • Calcium is a doubly charged ion and nitrate has a -1 charge.
      • To balance out the charge two nitrate ions are required.
      • The chemical formula for calcium nitrate is Ca(NO3)2.

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