chemistry questions?

[asd]

According to Reference Table G, which of the following saturated solutions is the most concentrated?
1.KI at 0°C
2. KNO3 at 70°C
3. NH3 at 100°C
4. KClO3 at 10°C


Solubility data for four different salts in water at 60°C are shown in the table below.

SaltSolubility in Water at 60°C

A 10 grams / 50 grams H2O

B 20 grams / 60 grams H2O

C 30 grams / 120 grams H2O

D 40 grams / 80 grams H2O


Which salt is most soluble at 60°C?
A
B
C
D



Based on Reference Table F, which of these salts is the best electrolyte?

1.sodium nitrate
2.magnesium carbonate
3.silver chloride
4.barium sulfate