Which type of reaction is Mg + S → MgS? A. polymerization
B. synthesis
C. replacement
D. decomposition

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.

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer

The atom fluorine generally will become stable through the formation of an ionic chemical compound by accepting electron(s) from another atom. this process will fill its outer energy level of electrons.