How do u balance the chemical equation kcio3 kci+02

2kcl - 2kcl 3o2 is the answer here's how:

We start with

1 KClO3 →KCl + O2

Balance K:

We have 1 K on the left, so we need 1 K on the right. We put a 1 in front of the KCl.

1 KClO3 →1KCl + O2

Balance Cl:

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

Balance O:

We have 3 O atoms on the left and only 2 on the right. We need 1½ O2 molecules on the right. Uh, oh! Fractions!

We start over with a 2 as the coefficient.

2 KClO3 →2KCl + O2

Now we have 6 O atoms on the left. To get 6 O atoms on the right, we put a 3 in front of the O2.

2 KClO3 →2KCl+3 O2

Every formula now has a fixed coefficient. We now should have a balanced equation.