An accident in a laboratory results in a room being contaminated by a radioisotope with a half-life of 2 days. If the radiation is measured to be eight times the maximum permissible level, how much time must elapse before the room is safe to enter?

What happens when chlorine reacts with bromine? a. electrons move from the chlorine atoms to the bromine atoms. b. electrons move from the bromine atoms to the chlorine atoms. c. electrons are shared between the chlorine atoms and the bromine atoms. d. electrons become delocalized among the atoms.

Mga halaman/punong ornamental na di namumulaklak

Atelevision set that has been running for a while heats up even the air around it. which two laws of thermodynamics could be used to analyze this scenario