Question

Balance the following chemical equations
a) kclo3-> kcl to 2
b) H 2+02 -> +120​

Answer 1

$\large\rm { 1KCLO_{3} \longrightarrow KCL + O_{2}}$

balance K

we put 1 in front of KCL.

balance Cl

Cl is already balanced, with 1 Cl on each side.

balance O

we have 6 O atoms on the left. to put 6 in right, we put 3 in front of O_2.

$\large\rm { 2KCLO_{3} \longrightarrow 2KCL+3O_{2}}$