The symbol [H3O+] represents
A) the concentration of H30+ ions in % by mass
B)the concentration of H30+ ions in % by volume
C) the concentration of H30+ ions in moles solute/liter solution
D) the concentration of H30+ ions in moles solute/kg solvent
E) none of the above

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.