What is a common property of metals

If the same amount of cacl2 is added to equal volumes of water and maple syrup, which will have the higher temperature?

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt