The Nashville Humane Society records the weights of 250 cats that are taken in during the month of July. The mean weight of the cats is 7.5 pounds. Which statement is a valid inference in this situation?

The answer is 323 g.

D. h2o + h2o > h3o + oh- confirmed.

H+ + cn– + li+ + oh– mc001-4.jpg li+ + cn– + h2o

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 !