Saturday
September 20, 2014

Homework Help: Chemistry - Please check

Posted by Alex on Wednesday, February 13, 2008 at 4:38pm.

d) 2Al(s) + Fe2O3(s)  2Fe(l) + Al2O3(s)
Oxidation
2Al(s)  2Al+ + 2e-
Reduction
Fe23+ + 3e-  2Fe(l)

Oxidation numbers for chlorine
HCl = -1
MnO2(s)= +4
KMnO4(s)= +7

Oxidation numbers for manganese
Mn(s)= ?
MnCl2(s)= +7
Mn2+(aq)= ?
MnO4- =?

And then SO4 is so confusing...
H2SO4 =?
PbSO4 = ?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - Electron Transfer Theory Write an label the oxidation and reduction ...
Chemistry - Electron Transfer Theory Write an label the oxidation and reduction ...
Chemistry :( - Given that: 2Al(s)+(3/2)O2(g)--->Al2O3(s) change in H(rxn)= -...
Chemistry-College - Given that: 2Al(s)+(3/2)O2(g)--->Al2O3(s) change in H(rxn...
Chemistry (Enthalpy)-College - Given that: 2Al(s)+(3/2)O2(g)--->Al2O3(s) ...
Chemistry - Calculate the enthalpy change (delta H) in kJ for the following ...
Chemistry - Calculate the enthalpy change (delta H) in kJ for the following ...
chemistry - Half reaction E0,(v) Ni2+(aq) + 2e-  Ni(s) -0.23 Co2+(aq) + ...
chemistry - the thermite reaction was previously used to weld the rails of ...
chemistry - 1) All of the following are oxidation-reduction reactions except (a...

Search
Members