The molecular formula for pentyne is
a. c6h6
b. c5h8
c. c5h12
d. c6h14

How are isotopes of the same chemical element alike? how are they different?

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.

Do polar molecules have ionic bonds?