The probability that a person has immunity to a particular disease is 0.6. Find the mean number who have immunity in samples of size 12

At room temperature what happens to the average kinetic energy of the molecules of a solid, liquid, and a gas

If two objects at different te,peraure are in contact with each other what happens to their temperature

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?