What is the overall charge of an ionic compound (formula unit)?

1 Answer
anor277
Jan 11, 2018

#"NULL...."#

Explanation:

The formula unit of an ionic compound is NEUTRAL.

And thus the cation (or vice versa) drafts in enuff anions to give a NEUTRAL compound.

And hence....

#CaCO_3;NaI; CaCl_2; Ba(NO_3)_2; NaNO_3; K_2HPO_4;Na_2SO_4;#

#Ca(IO_3)_2; NaClO_4.........#

In all cases the charge on the sum of the anions is equal to the charge on the sum of the cations, to give a neutral salt.

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