The following half-reactions are joined to form a galvanic cell that generates a current under standard conditions. Identify what is oxidized and what is reduced. Write a shorthand cell diagram, and calculate the standard cell potential (E°).
2 H+(aq) + 2 e- → H2(g) and Ni2+(aq) + 2 e- → Ni(s)

screening

explanation:

1.solid

2.carbon dioxide

3.helium

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally

50.23 i believe is correct but don't quote me on that.