Which statement about Niels Bohr's atomic model is true? A)Higher orbits have lower energies.
B) Each orbit has a specific energy level.
C) Electrons can exist in any energy level.
D) Orbits close to the nucleus have no energy.

Concerning the 10.0 ml of 0.50 m nacl to 100 ml of solution: when a solution is diluted, does it change the number of moles dissolved?

Which piece of equipment would me most useful for measuring the volume of some water? a. pan balance b. graduated cylinder c. tweezers d. flask quick

Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.