Question

balance this equation

Answer 1

\[KMnO _{4}\rightarrow K _{2}O+MnO+O _{2}\]

Answer 2

Check many of each element are on both sides
Left: Right:
K 1 K 2
Mn 1 Mn 1
O 4 O 4

So you start by adding a 2 before KMnO4

\(2KMnO _{4}\rightarrow K _{2}O+MnO+O _{2}\)

Now check again:
Left: Right:
K 2 K 2
Mn 2 Mn 1
O 8 O 4

Now we equalize Mn by adding a 2 before MnO on the right side

\(2KMnO _{4}\rightarrow K _{2}O+2MnO+O _{2}\)

Following it so far?

Answer 3

yes it is still not balanced.adding a two wont work in this case

Answer 4

We check again:
Left: Right:
K 2 K 2
Mn 2 Mn 2
O 8 O 5

Now we have an odd number of oxygen atoms and we don't want that.
So double everything

\(4KMnO _{4}\rightarrow 2K _{2}O+4MnO+2O _{2}\)

check again:
Left: Right:
K 4 K 4
Mn 4 Mn 4
O 16 O 10

Now we change the last O2 to make the number of oxygen atoms on the right side 16.
Any idea what it should be?

Answer 5

i got the answer it is \[4KMnO _{4}\rightarrow 2K _{2}O+4MnO+5O _{2}\]

Answer 6

thank you

Answer 7

That's correct :)
Great job