1) Cr + 6HCl -> CrCl3 + 3H2
Электронный баланс:Cr: 0 -> +3H: +1 -> 0
2) Pt + 4HNO3 -> Pt(NO3)4 + 4H2O
Электронный баланс:Pt: 0 -> +4H: +1 -> 0
3) Ag + H2O -> No reaction (Ag does not react with water)
4) Al + SnSO4 -> No reaction (Al does not displace Sn from SnSO4)
5) Mg + 2H3PO4 -> Mg3(PO4)2 + 3H2
Электронный баланс:Mg: 0 -> +2
6) Pb + H2O -> No reaction (Pb does not react with water)
1) Cr + 6HCl -> CrCl3 + 3H2
Электронный баланс:
Cr: 0 -> +3
H: +1 -> 0
2) Pt + 4HNO3 -> Pt(NO3)4 + 4H2O
Электронный баланс:
Pt: 0 -> +4
H: +1 -> 0
3) Ag + H2O -> No reaction (Ag does not react with water)
4) Al + SnSO4 -> No reaction (Al does not displace Sn from SnSO4)
5) Mg + 2H3PO4 -> Mg3(PO4)2 + 3H2
Электронный баланс:
Mg: 0 -> +2
6) Pb + H2O -> No reaction (Pb does not react with water)