Periodic table what makes elements in a group similar to each other and how does this affect their properties?

What is the number of moles in 15.0 g ash3?

Which best explains why an iceberg floats?

Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? if each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? how many neutrons in total were produced by the two fission events described?