Which of the following is not a pure substance? a. milk b. oxygen c. water d. carbon dioxide

Why is the structure of molecule important to its function?

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

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?