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KI + CuSO4 → CuI↓ + I2↓ + K2SO4
2I- → I2↓ + 2e- | · 1
Cu2+ + e- + I- → CuI↓ | · 2
4KI + 2CuSO4 → 2CuI↓ + 2K2SO4 + I2↓
proszę :)
2I -→I2↓+2e_
CU2+ +e - +i-→CuI↓I-2
4KI+2CuSO₄→2CuI↓+2 C₂SO₄+I2↓