Which on is more stable and why ortho hydrogen and para hydrogem?

What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2

Many free radicals combine to form molecules that do not contain any unpaired electrons. the driving force for the radical–radical combination reaction is the formation of a new electron‑pair bond. consider the chemical equation. n(g)+no(g)⟶nno(g) n(g)+no(g)⟶nno(g) write lewis formulas for the reactant and product species in the chemical equation. include nonbonding electrons. n(g)n(g) select draw rings more erase select draw rings more erase select draw rings more erase n no(g)

From the choices provided below, list the reagent(s) in order that will react with cyclopentanone to form the compound shown below.