Use the reaction equation below to determine the molar ratio of acetylene (c2h2) to carbon dioxide (co2).

2 to 5
1 to 2
1 to 1
5 to 4

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.