The electron configuration for four atoms are shown below. Which of the following would most likely react to form an anion?
O 152 252 2p 3s1
152 252 2p
O 152 252 2p6 352 3p
152 282 2p 352 3p4

What is the number of moles in 15.0 g ash3?

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space