Question

Write the chemical formula of the following chemical compounds;

(C) Potassium chlorate

Answer 1

Understanding the concept:

• A compound's chemical formula is a symbolic representation of the compound's composition. For example, magnesium sulfate is represented by ($MgS{O}_4$).
• The criss-cross method is a chemical method for writing ionic compound formulae.
• It is easier to identify the subscripts for each element in an ionic compound using the criss-cross method. The number linked with the charge of the first ion is allocated as the subscript of the second ion using this procedure.

Procedure to write the chemical formula:

The criss-cross method is used to get the formula for Potassium Chlorate.
Explanation: The symbol, as well as the valency of the constituent elements, are necessary to write the compound's formula using the criss-cross approach.

• Because Potassium is metal and chlorate is a polyatomic anion as a result, the compound is an ionic compound.
• When the constituent elements of Potassium chlorate are written with their valencies, the result is:

Symbol: $K$ $Cl{O}_3$

Valency: 1 1

It is canceled because there is a negative charge and a positive charge of the same number.
When the symbol and valency are crosses multiplied, the formula is as follows:$KCl{O}_3$.

Hence the chemical formula of Potassium Chlorate is ;$KCl{O}_3$