Worksheet description: sort through the wordlist on page two and decide which compound is soluble and which compound is in soluble based on your soul ability rules chart if the compound is soluble place it in the beaker within the appropriate class iineed some help please

also sorry for bad pic of it this app is still confusing being new..

b) nuclear ive learned that in a pedtrodic table

i believe the answer is three water molecules

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