Question

using a chart of ion/radicals and criss-cross method , write the chemical formula of Ferric chloride ​

Answer 1

Answer:

Explanation:

ferric chloride has two molecules iron and chloride, whose valencies are 3 and 1 respectively. therefore, the chart will be-

IRON                             CHLORIDE

  3         criss cross            1

as a result, formula will be FeCl3