Nitrogen forms a number of compounds with oxygen, for example, nitrous oxide, n2o is 63.65% by mass.

a second compound, which contains two atoms of nitrogen per molecule, is 36.86% n by mass. how many oxygen atoms are in the second compound? write your answer as a whole number.

Why is nh3 classified as a polar molecule

Imagine a small synthetic vesicle made from pure phospholipids enclosing an interior lumen containing 1 mm glucose and 1 mm sodium chloride. if the vesicle is placed in pure water, which of the following happens faster? a. na+ diffuses out. b. cl– diffuses out. c. h2o diffuses in. d. glucose diffuses out. e. sodium chloride diffuses out.

Which of the following is the molecular formula for a simple sugar? a. cooh b. h2o c. oh d. c6h12o6