We don\'t have a textbook for this class and the lecture notes are very vague. P

Question

We don't have a textbook for this class and the lecture notes are very vague. Please Explain or show steps.

1) In the reacion between aluminum metal and Ni2+(aq), the Ni2+is the oxidizing agent.

2) The reaction: Ca(s) ? Ca2+(aq) + 2e- ; is oxidation

3) True or False: A gas electrode consist of a solid where the gas molecules adhere to, so that oxidation or reduction can occur

4) True or False: the reduction potenial of the silver half-cell is 0.80V

5) True or False: one faraday will "plate out" one equivalent of a substance

Explanation / Answer

1) 2 Al + 3Ni^+2-----------------------> 2Al^+3 + 3 Ni

in the above reaction aluminium is under go oxidation so it is act as areducing agent, nickel undergo reduction so it is act as a oxidisingagent.

2) Ca(s) _+ H2O ---------->Ca (aq) (hydration reaction)

Ca(aq)---------------------------------.>Ca^+2 + 2e^- (oxidation reaction)

3) true

4)true

5) true

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