## 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
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 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: