2 2 6 2 6 2 10 3
1s 2s 2p 3s 3p 4s 3d 4p
=

According to le chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.

About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?

Consider the story you just read. all but one of the choices below indicate that something is living.