How many atoms of each element are in 3CaCl2?

1 Answer
Aug 25, 2017

Each individual formula unit of CaCl2 contains 1×Ca2+, and 2×Cl.

Explanation:

The ionic salt formed is of course electrically neutral; and electrical neutrality requires this PRECISE number of anions and cations. So if we got 3 formula units or even 3 moles, we gots 3×Ca2++6×Cl.....