Question

Valencies help in deriving a chemical simbol or chemical formula or chemical equation​

Answer 1

Answer:

royal din off before peel Carrick umbrella your dock

Answer 2

Answer:

chemical formula

Explanation:

while we derive a chemical formula, in the second step we use the valencies and in the third step we interchange the valencies and would find the answer by the last step. So valencies help in deriving a chemical formula