How many molecules of water are there in 10 lbs of water?

1) how many electrons are in each energy level of the following elements? a. he b. na c. na d. ne 2) how many valence electrons are percent in the following atoms? a. s b. mg c. be d. cl 3) which of the following elements are stable as atoms? a. he b. o c. cl d. ar if you are able to provide the work as to how you got the answers that would be greatly appreciated. : )

What are the chemical names of these compounds? ke: mg3n2: reset next

Which of the following is described by the equation h2o(s)+ heat=h2o(i) a freezing melting condensing evaporating