please can u help me out
Match the appropriate oxidation number to the element in red:
SO42- The P atom in PF5 The Mg atom in MgF2
HSO3– The Fe atom in FeO
NH4+ The Cu atom in CuSO4
Na2S The Mn atom in KMnO4
P4 The Hg atom in HgCl2
The Mn atom in KMnO4
Calculate the standard cell potential for
Ags | Ag+aq || Fe2+aq | Fes
if the standard electrode reduction potentials are
Ag+aq | Ags = 0.799 V Fe2+aq | Fes = -0.409 V
The C atom in CCl4
The Li atom in Li3N
The Cr atom in CrCl3
The Cl atom in NaCl
The C atom in CO2
The N atom in N2O
The P atom in PF5
for each of the following four reactions, select from the list (A – H) the half-reaction which shows the reduction of the oxidizing agent
3H2O(l) + P4(s) + 3KOH(aq) ” src=”http://loncapa.net/res/sfu/batchelo/Gallery/rarrow.gif” align=”middle”> HC2H3O2(aq) + 2Ag(s) + 2KNO3(aq) + 2NH3(aq) + H2O(l)
4Au(s) + 16KCN(aq) + 3O2(g) + 6H2O(l) ” src=”http://loncapa.net/res/sfu/batchelo/Gallery/rarrow.gif” align=”middle”> H2SO3(aq) + FeSO4(aq) + H2O(l)
Calculate the standard cell potential for
Fes | Fe2+aq || Ni2+aq | Nis
if the standard electrode reduction potentials are
Fe2+aq | Fes = -0.409 V Ni2+aq | Nis = -0.236 V
Match the appropriate oxidation number to the element in red:
the P in PO43-
the s in K2SO3
the o in Al2O3
the s in S8
the s in SO2Cl2
The Si atom in SiF4
The Al atom in AlF3
The S atom in Na2SO4