What is the regular electron configuration for phosphorus

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.

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

What does the mass of 0.7891 mol of ferric oxide (fe2o3)