the answer is D because if an equal amount of heat is absorbed by the water in the containers, both water temperatures will increase, but Container B's will increase more.
When heat is absorbed by a substance, the substance's temperature increases. The amount that the temperature increases depends on the volume of the substance—the greater the volume, the less the temperature increases.
The water in Containers A and B has the same temperature, but Container A's water has a greater volume. If an equal amount of heat is added to both containers, Container A's water temperature will not increase as much as Container B's.
This is an ionic precipitation reaction
Think of it this way,
Mix Iron and sulphur in a bowl. How do you separate them? Use a magnet right. Yes.
Now, mix the iron and sulphur together but know, heat them up. Let them cool for a while. After that, use a magnet to separate. You cant. This is because the compound (FeS) now has a different property from its original components.
Apply this theory onto salts.
