A standard galvanic cell is constructed in which a Ni2+ | Ni half cell acts as the cathode. Which of the following statements are correct? (choose all that apply) 1. As the cell runs, anions will migrate from the Ni2+|Ni compartment to the other compartment.
2. The anode reaction could be Cr -> Cr3+ + 3e-
3. Ni2+ is reduced at the cathode.
4. The anode compartment could be I2|I-.
5. Ni is oxidized at the cathode.

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.

i don't know people like to fight everywhere rip.

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.