It was thought by some that the core fire was extinguished by a combined effort of helicopters dropping more than 5,000 tonnes (11 million pounds) of sand, lead, clay, and neutron-absorbing boron onto the burning reactor. It is now known that virtually none of these materials reached the core. IsRead More →

Oxygen (O2) When a smoldering splint is introduced to a sample of pure oxygen gas, the splint will reignite. Nitrogen (N2) When a burning splint is introduced to a sample of pure nitrogen gas, it will be extinguished. Which of the following will reignite a glowing splint? High levels ofRead More →