Which element has the highest electronegativity? a. nitrogen b. iodine c. fluorine d. selenium

Consider this equilibrium: n29) + o2(g) + 2no(c).nitrogen gas and oxygen gas react when placed in a closed container. as the reaction proceeds towards equilibrium, what happens to the rate of thereverse reaction?

Which change to the system wood cause the freely-moving piston to lower?

How many moles in .5g of sodium bromide?