From your solubility curve determine the solubility of ammonium chloride in g/100 ml of h2o at 60 degrees celsius.

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

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.