An Exothermic reaction releases energy into the surroundings and so the products have more potential energy then the reactants. The enthalpy change is a negative value. Whereas, an endothermic reaction involves the absorption of energy into the system and so the reactants have more potential energy than the products. The enthalpy change is a positive value. This is clearly represented in energy profile diagrams.
oxygen is in gaseous state at this temperature
Sorry I’m just here for more questions
The answer to your question is nitrogen dioxide
Release of heat, color change, or produce of bubbles create are chemical changes that create sound.
