 Okay, so let's try this one, the oxidation of lithium by oxygen to make lithium oxide. Okay, so the first thing you want to do is what? At show which atoms you have, right? So left side not gonna do it, right? Left side, Li, right? And what else? Very good, very good. And over here, do we have both of those elements? Especially if you only say yes and no, nobody's ever gonna know you, all right? Okay, so how many lithiums do we have? One, right? Over here, oxygens? Well, yeah, because it's O2, that's a molecule, right? So we always have to keep oxygen as O2, at least on this side of the reaction equation, okay? So we have two of them. We look over here, how many lithium? Two, very good. And oxygen, how many lithium? Okay, so let's step back and we look, okay, those are all scrambled up, right? We don't we don't got the right numbers of anything. And we would have to remember we want to balance these numbers. So the easiest way to do this one is well, I see I have two oxygens over here and one oxygen over here, so five foot of two there. Okay. Let's now figure out how many lithiums and oxygens we have on the products, okay? So remember when I'm putting the coefficient there, that's like saying this multiplied by that coefficient, okay? So the subscript here multiplied by the coefficient, so times two, so how many lithium are we gonna have? Both. And here, what are we gonna do? Very good, times two, all right, and what are we gonna get? Two. Okay, so do you see anything cool? Something's balanced, right? Oxygens are balanced, right? But lithiums aren't, right? So what are we gonna have to do to our lithiums over here? Make it a four. So what do I multiply one by to equal four? One times what? Equals four. Yeah, one times four Equals four. So that means four has to be our what? Coefficient, we call it, okay? Okay, so now just to check, right? Lithium-4, lithium-4, balanced. Oxygen-2, oxygen-2, balanced. Are we okay with that one?