How must the electronegativities of two atoms compare

If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?

How many moles are in 43.9 l of oxygen

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)