What is the evidence that shows cathode rays consists of charged particles

Calculate the number of moles of ethane in 100 grams

What is the independent variable in this investigation? mass volume sample number substance density

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.