A mixture of nitrogen and oxygen in a 1:3 ratio has a volume of 4.00 L. What is the volume of the nitrogen trioxide when the nitrogen and oxygen
react according to the equation:
N2 (g) + 3 02 (g) → 2 NO, (g)
while keeping pressure and temperature constant?
lol

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

Which of the following electromagnetic waves can create ions?

Earth's axis of rotation is tilted at an angle of 23.5 degrees. what is one change you would see on earth if its axis was not tilted?