Answer:
2 KMnO4 → K2MnO4 + MnO2 + O2
Writing '2' in front of the reactant will balance the chemical formula.
Explanation:
When balancing chemical equations, we need the same amount of each element on both sides.
In this chemical equation, we have one reactant on the left. On the right, we have three products separated by plus signs.
KMnO4 → K2MnO4 + MnO2 + O2
KMnO4 → K2MnO4 + MnO2 + O2
K 1 K 2
Mn 1 Mn 2
O 4 O 8
This equation is not balanced because there is a different amount of each element on the two sides.
So, we need to double each element on the left side. Let's write a '2' as a coefficient in front of the reactant.
2 KMnO4 → K2MnO4 + MnO2 + O2
Now, let's recount the number of each element.
K 2 K 2
Mn 2 Mn 2
O 8 O 8
We have the same amount of each element on both sides.
Therefore, the chemical equation is balanced.
Learn more about balancing chemical equations: https://brainly.com/question/38709980
