Question

Identify each of the following half-reactions as either an oxidation half-reaction or a reduction half-reaction. half-reaction identification Sn2 (aq) 2e-Sn(s) reduction Al(s)Al3 (aq) 3e- oxidation (2) Write a balanced equation for the overall redox reaction. Use smallest possible integer coefficients.

Answer 1

Answer: Oxidation reaction:
`Al(s)\rightarrow Al^(3+)(aq)+3e^-`

Reduction reaction:
`Sn^(2+)(aq)+2e^-\rightarrow Sn(s)`

Overall redox reaction :
`2Al(s)+3Sn^(2+)(aq)\rightarrow 2Al^(3+)(aq)+3Sn(s)`

Step-by-step explanation:

Oxidation-reduction reaction or redox reaction is defined as the reaction in which oxidation and reduction reactions occur simultaneously.

Oxidation reaction is defined as the reaction in which a substance looses its electrons. The oxidation state of the substance increases.

`Al(s)\rightarrow Al^(3+)(aq)+3e^-`

Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.

`Sn^(2+)(aq)+2e^-\rightarrow Sn(s)`

Overall redox reaction :
`2Al(s)+3Sn^(2+)(aq)\rightarrow 2Al^(3+)(aq)+3Sn(s)`