How many moles of atoms are in 486 × 1025
atoms Zn?

How does a hydroelectric power plant converts energy into energy.

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.

What’s the theoretical yield of solid lead