In the formula for water (h2o), what does the subscript 2 indicate?
o two oxygen atoms in the compound
o two hydrogen atoms in the compound
o two atoms in the compound
o two molecules in water

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.