What are the half-reactions for a galvanic cell with Zn and Ni electrodes? A. Zn(s) → Zn2+(aq) + 2e and Ni2+(aq) + 2e → Ni(s)

B. Zn2+(aq) + 2e → Zn(s) and Ni(s) > Ni2+(aq) + 2e

C. Zn2+(aq) + 2e → Zn(s) and Ni2+(aq) + 2e → Ni(s)

D. Zn(s) → Zn2+(aq) + 2e and Ni(s) → Ni2+(aq) + 2e

(The answer is A. Btw)

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.

you didnt put any of the following

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