If two oxygen atoms combine to make a molecule, what type of bond will they form

What happens to the atomic radius when an elctron is lost

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.