The answer which defines exothermic reaction is
a process in which energy is released as heat ( answer A)
<u><em>Explanation</em></u>
Exothermic reaction is a chemical reaction in which energy is released into environment in form of heat.
<u> For example of exothermic reaction</u>
Is a combustion reaction such as lighting a candle whereby oxygen react with wax to produce carbon (iV) oxide, water and heat.
Atoms<span> are made up of three particles: protons, neutrons and electrons. Protons and neutrons are heavier than electrons and reside in the center of the </span>atom, which is called the nucleus<span>. Electrons are extremely lightweight and exist in a cloud orbiting the </span>nucleus.
I think the correct answer is the second option. The statement pertaining to the properties of the element vanadium is reliable because the facts presented are testable or can be verified by doing experimentation. Also, nowadays, many studies are present that contains properties of almost anything.
