Respuesta :

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

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 ([tex]CaBr_2[/tex]) is formed.
  • In order to form a neutral molecule, [tex]2 Br^-[/tex] combines with one [tex]Ca^{2+}[/tex].
  • So, the resulting chemical formula would be [tex]CaBr_2[/tex].