Chemistry help [urgent!]

[Thaliacea]

If someone is into chemistry ,i would be very thankful for help!
I have 2 questions:


1. H2O2 + KMnO4 → MnO2 + KOH + O2

This redox reaction . It is not difficult , but what is confusing me is the oxygen. On the left side we have oxygen that is -1 (in H2O2) and oxygen that is -2 (in KMnO4) , and on the right side we have 2 oxygens with -2 (MnO2 and KOH) and onw with 0 (in O2). So how do i know which oxygen changes to which? I hope you understand


2. What will happen to hydrolysis of FeCl3 if you add :
-NaOH
-HCl
-Zn
-H2O
-NaHCO3



Please , if someone knows anything about these two problems - help me :D
it is kinda urgent :/

[JamesSuperBoy]

I always try and look at the unanswered posts but I'm sorry not a clue but hey well maybe somebody else will see this and try to help.

[Thaliacea]

Nevermind , you can close this thread , the finals are over :D

[Luminous]

Locked at OP request :locked: