Which technique can uncover writing in a charred document?

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?

What is the common name for the compound shown here? enter the common name of the compound shown?

Rays from the sun are not considered matter true or false