Question

What is the chemical formula of a compound that is composed of ions ca2+ and br-

Answer 1

Answer: Calcium Bromide

Explanation:

• The valency of Calcium (Ca) is +2 and valency of Bromine (Br) is -1.

• When these two chemically combine with each other, Calcium Bromide ($CaBr_2$) is formed.
• In order to form a neutral molecule, $2 Br^-$ combines with one $Ca^{2+}$.
• So, the resulting chemical formula would be $CaBr_2$.

Answer 2

The chemical formula of a compound that is composed of ions Ca+2 and Br-1, is Ca(Br)2.