Be sure to answer all parts. write the overall, balanced molecular equation and indicate which element is oxidized and which is reduced for the following reactions. include phase abbreviations in the overall, balanced molecular equation. enter only the elemental symbol when identifying which element is oxidized or reduced. part 1 out of 2 (a) mg(s) cr(c2h3o2)3(aq)

answer:

nxbjwdjndwnmdwq kdmw,n lkdwmq

explanation:

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

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