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4 July, 07:39

how many molecules, elements, and total atoms are present in the following chemical formula? Mg (NO3) 2

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  1. 4 July, 10:26
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    1 molecule. the coefficient tells you that and since there isn't one then it's 1 molecule.

    There is 3 elements. Mg = 1 atom N=2 atoms O=6 atoms. The total number of atoms is 9.

    To put it simple

    1 molecule

    3 elements

    9 atoms
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