Oxidation & Reduction (1 Viewer)

[ombuds]

PbO + CO ---> Pb + CO2

I dont quite know how to do this. Can someone give me a hand.

Thanks.

p.s Show how you did it.

Thanks in advance.

 

[spakfilla]

Are you sure that's written down correctly??????

 

[Rodger Gu]

You need to valency's
Then swap the valency's over for each one

 

[blackratpoo]

PbO + CO ---> Pb + CO2

I dont quite know how to do this. Can someone give me a hand.

Thanks.

p.s Show how you did it.

Thanks in advance.

What are you asking exactly? which is oxidising and which isnt.


In this case, you look at oxidation states, where oxygen always has an oxidation state of 2- except in peroxides. Therefore, Pb must have a state of 2+ in PbO as its a neutral compound. On the products side, Pb is neutral with an O.S of 0. That is, its oxidation state has gone from 2+ to 0. Thus, Pb has been reduced.

Carbon has an O.S of 2+ on reactants side and an O.S of 4+ on products side and thus, has been oxidised.

:burn:THIS IS HSC WORK, WHY DO YOU CARE?:burn:

 

[blackratpoo]

This also means that Pb is the oxidant and C is the reductant. But who cares, enjoy yr11.