Two equal forces act in opposite directions on object A. Two unequal forces act in opposite directions on object B. If these are the only forces acting on objects A and B, which of these conclusions is true?

Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u.s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?