What kind of reaction is once started will continue by itself?

Answer 1

No. It requires an energy input (the activation energy) before it can proceed. For some reactions the energy needed can be as low as simply heat from the room and others need thousands of Watts of electrical power.

Answer 2

An exothermic reaction is typically self-sustaining once initiated, as it releases heat energy that provides the activation energy for the reaction to continue without further external assistance. This can result in a chain reaction or runaway reaction if not controlled properly.

Answer 3

exothermic reaction

Answer 4

Exothermic Reaction

Answer 5

spontaneous