(7.1a) Complete and balance the following by ion-electron method. Reactions are taking place in acidic solution. a) Cu(s) + NO3 (aq) - Cu*2(aq) + NO2(g) Analysis: Oxidation-Half reation: Balancing atoms & charges: Cus) Cu*2, Cu?(aq) + e Reduction-Half reation: Balancing O & H and charges: H* + NO3 (aq) e - NO2(g) + 1 H20 Balancing electrons lost & gained and balancing the equation: Cu(s)

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(7.1a) Complete and balance the following
by ion-electron method. Reactions are
taking place in acidic solution.
a) Cu(s) + NO3 (aq) - Cu*2(aq) + NO2(g)
+ NO29)
Analysis:
Oxidation-Half reation:
Balancing atoms & charges: Cu(s)
Cu*2,
(aq)
e
Reduction-Half reation:
Balancing O & H and charges:
H* + NO3 (aq)
e
NO2(g) +
1
H20
Balancing electrons lost & gained and
balancing the equation:
Cu(s)
NO3 (aq) +
H* -
Cu*(aq)
NO2(g)
H20
Transcribed Image Text:(7.1a) Complete and balance the following by ion-electron method. Reactions are taking place in acidic solution. a) Cu(s) + NO3 (aq) - Cu*2(aq) + NO2(g) + NO29) Analysis: Oxidation-Half reation: Balancing atoms & charges: Cu(s) Cu*2, (aq) e Reduction-Half reation: Balancing O & H and charges: H* + NO3 (aq) e NO2(g) + 1 H20 Balancing electrons lost & gained and balancing the equation: Cu(s) NO3 (aq) + H* - Cu*(aq) NO2(g) H20
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