h2o

given the chemical formula, how is this substance most likely classified?
a) atom
b) compound
c) both atom and compound
d) neither atom nor compound

h2o

given the chemical formula, how is this substance most likely classified?
a) atom
b) compound
c) both atom and compound
d) neither atom nor compound

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.