The energy needed to get a reaction started is the
a. enzyme energy.
b. activation energy.
c. catalyst energy.
d. chemical energy.

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?

Draw a line graph showing the relationship between temperature in kelvin as a function of kinetic energy.