PLEASE HELP NO JOKES, WILL GIVE BRAINLIEST 20 PTS A chemist reacted 57.50 grams of sodium metal with an excess amount of chlorine gas. The chemical reaction that occured is shown.

Na + Cl2 > NaCl

If the percentage yield of the reaction is 86%, what is the actual yield?

Show your work, including the use of stoichiometric calculations and conversion factors.

What must happen before a body cell can begin mitotic cell division

Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .

The term gas is limited to those substances that exist in the gaseous state at