SERIOUS ANSWERS ONLY PLEASE. Given the orbital configuration of arsenic (As), explain how arsenic can have the following oxidation states.

-3

+3

+5

If 90.0 grams of ethane reacted with excess chlorine, how many grams of dicarbon hexachloride would form

What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.

What is the percent by mass of magnesium sulfate in mgso4.7h2o