Calculate the number of molecules in 64.5 grams of Nitrogen monoxide, NO

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

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?

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?