Question

write down the steps involved in deriving the chemical formula of various compounds

Answer 1

The following steps are significant.

1) Identify the elements whether they react by gaining or losing electrons.

2) Write their ionic formulas.

3) To write the formula remember they exchange ions in this way :

Lets take Chlorine and Magnesium.

Their ionic formulas are :

Chlorine = Cl-

Magnesium = Mg2+

They exchange ions in this way :

MgCl2

Answer 2

Chemical formulas for various compounds can be done by the method  called as Criss cross method

For example : Calcium Hydroxide

step 1: write the symbols for the atoms

Ca                  OH

step 2: write the valencies at the top of symbols

Ca²                     OH¹

Step 3 - Criss cross the valencies

Ca²                     OH¹

Ca ₁                     (OH)₂

so formula for calcium hydroxide is Ca(OH)2