• A sphere of plastic has a density of 4.5 g/cm3. The sphere is cut in thirds exactly. The density of the one of the thirds is
g/cm3

less than 1.5 g/cm3

1.5 g/cmº exactly

less than 4,5 g/cm but more than 1.5 g/cm

4.5 g/cm exactly

need more information,

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?