The average kinetic energy of water molecules decreases when

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

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?