Practice question
Question
In 2CuSO₄ + 4KI → 2CuI + I₂ + 2K₂SO₄, what is the total number of electrons transferred?
Explanation
Cu (+2 to +1): 2 Cu atoms gain 2 electrons. I (-1 in 4KI) to 0 in I₂: 2 I atoms lose 2 electrons. Total = 2.
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