In which type of bond are electrons shared equally between two atoms?​

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

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.

Salt in oceans comes from and of rocks