What is Electronegetivity

If you burn 46.6 g of hydrogen and produce 416 g of water, how much oxygen reacted

The reaction below shows a system in equilibrium. how would a decrease in temperature affect this reaction? a. the rate of formation of the gases would increase. b. the equilibrium of the reaction would shift to the left. c. the equilibrium would shift to cause the gases to sublime into solids. d. the chemicals on the left would quickly form the chemical on the right.

How many atomic mass units are equal to 1.672×10−24 g of protons?