Devise a way to separate a mixture of sand, salt, and iron filings. write the procedure using a step-by-step method and explain the reasoning behind each step. can someone

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.

Which statement names the physical property of wood a. wood is softer than coal b. wood does not rust c. wood can rot d. wood can burn

If 10.5 l of a at 0.98to 1.50 , is ?