chemical reactivity cause

  • What Role Does Heat Play in Chemical Reactions? | Sciencing

    Apr 28, 2018 · Many familiar chemical reactions, such as the burning of coal, rusting and exploding gunpowder, give off heat; chemists call these reactions exothermic. Because reactions liberate heat, they increase the ambient temperature. Other reactions, such as combining nitrogen and oxygen to form nitric oxide, take in heat, reducing the ambient temperature.

  • Examples of Chemical Reactions in Everyday Life - ThoughtCo