Please help ill mark mark brainlisst

What is the number of moles in 15.0 g ash3?

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?

Which type of intermolecular attractions holds ammonia molecules together with other ammonia molecules?