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  • State the number of atoms present in each of the following chemical species

State the number of atoms present in each of the following chemical species
(a) CO_{3}^{2-}
(b) PO_{4}^{3-}
(c) P_2O_5
(d) CO

Answers (1)

Solution.

(a) CO_{3}^{2-} = 1C + 3(O) = 4

(b) PO_{4}^{3-} = 1P + 4(O) = 5

(c) P_{2}O_{5} = 2P + 5(O) = 7

(d) CO = 1C + 1(O) = 2

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