When a substance such as ice melts, its temperature increases. describe what happens to the arrangement of the water molecules as the temperature increases. a) water molecules separate into hydrogen and oxygen atoms. b) water molecules become less orderly and they spread apart. c) the kinetic energy of the water molecules decreases proportionally to the temperature change. d) water molecules lose all contact with one another and intermolecular forces are non-existent

200. ml of 3.00 m nacl solution is diluted to a final volume of 500. ml. what is the molarity of the final solution?

Explanation for basic character?

Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4nh3 (g) + 5o2 (g) → 4no (g) + 6h2o (g) also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the following composition: compound pressure at equilibrium nh3 65.1atm o2 31.3atm no 62.7atm h2o 65.8atm compound pressure at equilibrium nh3 65.3 atm o2 7.79 atm no 12.1 atm h2o 65.8 atm calculate the value of the equilibrium constant kp for this reaction. round your answer to 2 significant