What's wrong with the statement "a mug of hot chocolate contains more heat than a glass of cold water."

Which position represents spring in the southern hemisphere? a) b) c) d)

What are the major types of a chemical compound

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?