Question

Egalați reacțiile redox(+exponenți):

Cl2+Na OH→Na Cl+Na Cl O+H2O
KI(i)+H2SO4→K HSO4 +I2 +H2S+H2O​

Answer 1

Cl2 + 2 NaOH → NaCl + NaClO + H2O

Cl(0) - 1e- →   Cl +1 (oxidare)

Cl(0) + 1e- →  Cl -1 (reducere)

8 KI + 9 H2SO4 →  8 KHSO4 + 4 I2 + H2S + 4 H2O

S(+6) +8e- → S -2 (reducere)

8 I(-1) -8e- → 8 I(0) (oxidare)