Which of the following is the mass in grams of 1 mole of a substance?

Need on both questionswill markbr />

An observation that requires measurement is called quantitative observable or qualitative

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?