The standard reduction potential for a substance indicates how readily that substance gains electrons relative to other substances at standard conditions. the more positive the reduction potential, the more easily the substance gains electrons. consider the following: ni2+(aq)+2e−→ni(s),cu2+(aq)+2e−→cu( s), e∘red=−0.230 v e∘red=+0.337 v part b what is the standard potential, e∘cell, for this galvanic cell? use the given standard reduction potentials in your calculation as appropriate. express your answer to three decimal places and include the appropriate units.

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

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a

answer: i dont know the answer but this might

explanation:

l