Scientists view a disproved hypothesis as:
A wasted effort incorrect answer
B An exception incorrect answer
C An opportunity to investigate further incorrect answer
D The goal of the scientific process

Ive had this before. your answer would be d. hope this ya

Caso4(s) < > ca+2 + so4^-2 ksp = [ca+2][so4^-2] = 2.4 x 10^-5 = [0.20][so4^-2] [so4^-2] =1.2 x 10^-4 ag2so4(s) ,> 2ag+ + so4^-2 ksp = [ag+]^2[so4^-2] = 1.5 x 10^-5 = (0.30)^2[so4^-2] [so4^-2] = 1.5 x 10^-5/0.09 = 1.7 x 10^-4 caso4 would precipitate first since it requires less so4^- to form a saturated solution.  i believe this is right, i hope it !  

The answer is

I’m sorry for that person to respond to your question like that. the correct answer is they both can’t be the same density the water density should be lower than 7.52