Asaturated hydrocarbon is an organic compound which contains hydrogen and carbon joined
a. ) with double and triple bonds
b. ) with single bonds
c. ) by double bonds in a ringed structure
in a single long chain

Can someone me with these questions plz.

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.

Answer explain why it is not possible to deduce a complete order of reactivity.