How many moles of oxygen (O2) are required to complete the combustion of 9.3 moles of P in the following chemical reaction

Chemical Reaction: 4P + 5O₂ → 2P₂O₅

mol P x ( mol O2/ mol P) = mol O2

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.