What type of physical weathering is caused by the expansion of water?

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.

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table

How many moles of bromine are needed to produce 3.23 moles of potassium bromide