what is the mole percent of ethanol (c2h5oh), which consists of 71.0 g of ethanol for every 16.7 g of water present?

Hey can you me with this i really need y’all

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.

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory