The Enthalpy of Reaction is the adjustment in the enthalpy of a compound response that happens at a consistent weight. It is a thermodynamic unit of estimation helpful for figuring the measure of vitality per mole either discharged or created in a response.
Explanation:
The idea here is that you need to use the Periodic Table of elements to find the mass number of the most common isotope of phosphorus, P.
b............................................
The answer is going to be “chemical bond” hope you have a good day and hope this helps
Why hello there!
The correct answer to your question is C because exothermic energy is based of on using heat and heat acts like the activation !
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