Write a multi-way if statement that compares the double variable ph with 7.0 and makes the following assignments to the bool variables neutral, base, and acid: false, false, true if ph is less than 7 false, true, false if ph is greater than 7 true, false, false if ph is equal to 7

i think it's letter a.

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