Part A Which set of compounds would form a buffer in aqueous solution?
Drag each item to the appropriate bin.
Part B
Complete the following chemical equations to show what happens when HBr or KOH is added to a buffer solution made from HF and KF.
List the products in alphabetical order within each reaction.
Drag each label to the appropriate target. List the products in alphabetical order within each reaction.

i wish i could but this one is weird give me abc and i can solve it.

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