3. If an item of trash is described as highly biodegradable, is that a physical property or chemical property?.

How many atoms are in 1.4 mil of phosphorus trifluoride (pf3)

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.

How can the periodic table be used to predict the behavior of elements?