Answer:
Explanation:
a )
Zn = Zn²⺠+ 2e  ( oxidation reaction )
Fe³⺠+ 3e = Fe( s ) ( reduction reaction )
b )
[ Zn = Zn²⺠+ 2e ] x 3
[ Fe³⺠+ 3e = Fe( s ) ] x 2
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3 Zn + 2 Fe³⺠+ 6e = 3 Zn²⺠+ 2 Fe ( s ) + 6e
3 Zn + 2 Fe³⺠ = 3 Zn²⺠+ 2 Fe ( s )