a. Cu(s) + Cu2+(aq) → Mn(s) + Mn2+(aq)
b. 2Cu(s) + Mn2+(aq) → Mn(s) + 2Cu2+(aq)
c. 2Mn(s) + Cu2+(aq) → Cu(s) + 2Mn2+(aq)
d. Cu(s) + Mn2+(aq) → Mn(s) + Cu2+(aq)
e. Mn(s) + Cu2+(aq) → Cu(s) + Mn2+(aq)
What is the cell reaction for the following electrochemical cell? Cu | Cu2+(aq) || Mn2+(aq) | Mn?
2020-10-06 1:38 pm
回答 (2)
2020-10-06 3:59 pm
Half equation for Cu(s)|Cu²⁺(aq): Cu(s) → Cu²⁺(aq) + 2e⁻
Half equation for Mn²⁺(aq)|Mn(s): Mn²⁺(aq) + 2e⁻ → Mn
Add the above two half equations, and cancel 2e⁻ on each side. The overall equation for the cell reaction is:
d. Cu(s) + Mn²⁺(aq) → Cu²⁺(aq) + Mn(s)
Half equation for Mn²⁺(aq)|Mn(s): Mn²⁺(aq) + 2e⁻ → Mn
Add the above two half equations, and cancel 2e⁻ on each side. The overall equation for the cell reaction is:
d. Cu(s) + Mn²⁺(aq) → Cu²⁺(aq) + Mn(s)
2020-10-06 2:08 pm
d. Cu(s) + Mn2+(aq) → Mn(s) + Cu2+(aq)
收錄日期: 2021-04-24 08:01:37
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20201006053839AAhpDaD