A sample of 8.69 g of Zn(OH)2 is added to 155.0 mL of 0.750 M H2So4. (a) Write the chemical equation for the reac- tion that occurs. (b) Which is the limiting reactant in the re- action? (c) How many moles of Zn(OH)2, H2SO4, and ZnSO4 are present after the reaction is complete?

i think is conclusions.i think so

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