Answer Happy

Consider these compounds:
A. CaCrO4
B. Al(OH)3
C. PbCrO4
D. Fe(OH)3
Complete the following statements by entering the letter(s)
corresponding to the correct compound(s). (If more than one
compound fits the description, include all the relevant compounds
by writing your answer as a string of characters without
punctuation, e.g, ABC.)
Without doing any calculations it is possible to determine that
silver chloride is more soluble than _______ , and silver chloride
is less soluble than _______ .
It is not possible to determine whether silver chloride is more
or less soluble than ______ by simply comparing Ksp values.