## How would I find the half-reactions?

$$2MoS_{2} + 7O_{2} \rightarrow 2MoO_{3} + 4SO_{2}$$

So here I have a redox reaction, it's already balanced but just for kicks I'm trying to find the half-reactions so that I know what is happening. I'm having some trouble though as I don't know what's being oxidized and what's being reduced. Any advice?

Thanks!

BiP
 Admin Two things are oxidized and one is being reduced. The one that is being reduced should be obvious.
 Sorry I don't catch it still. Which one is being oxidized and how do you know? BiP

## How would I find the half-reactions?

Did you try assigning oxidation numbers?

If you're not sure about how to do that, this should help: