While carrying a Fischer Esterification in CHEM43A, Hanna Montana noticed a few drops of an unknown liquid on her gloves. Rather than carefully removing and throwing the gloves away in the appropriate waste container, she decided to wipe them off with kim-wipes. The kim-wipe paper quickly turned black and appeared burnt. Hanna then quickly and carefully replaced her gloves and her hands were fine! What chemical was on her gloves

Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.

Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .

Arectangle has a diagonal 20 inches long that forms angles of 60 and 30 with the sides. find the perimeter of the rectangle. for geometry