If you wanted to shift the potential of the lead-zinc cell upward, toward 0.70 V, which of the following actions would give thedesired result? Check all that apply. *Ignore the currentchecks.
Anyaction that makes [Zn2+] smaller than[Pb2+].
Any action that makes [Zn2+]larger than [Pb2+].
Adding some concentratedZn(C2H3O2)2 solution tothe Zn2+/Zn couple.
Anyaction that makes Q > 1.0.
Addingsome concentratedPb(C2H3O2)2 solution tothe Pb2+/Pb couple.
Anyaction that makes log Q positive.
Any action that makes log Qnegative.
Any action that makes Q <1.0.

its not a choice. you dont choose if you want to be gay or straight.

i know insulin is primary but i dont know the others im sorry

explanation:

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.