Can you give a couple of examples of chemical energy?

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Chemical energy is stored in substances that can undergo reactions to form products with more stable bonds, resulting in energy release. Examples include gasoline and TNT, which release energy when their bonds are broken and reformed. The process of bond breaking requires energy, while bond formation releases energy, leading to exothermic reactions when more energy is released than consumed. A common example is the combustion of methane with oxygen, producing carbon dioxide and water, which is exothermic due to the high bond enthalpy of carbon dioxide. Overall, substances with high chemical potential energy can release significant energy during reactions.
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Can you give a couple of examples of chemical energy?
 
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In any chemical reaction some bonds are broken (in the reactants) and new bonds are made (to form the products). Bond breaking requires energy. Bond making gives out energy. Chemical potential energy is ultimately a result of the fact that some bonds are more stable (have a higher bond enthalpy) than other bonds. If more energy is given out when new chemical bonds form than is required to break the bonds in the first place- overall the reaction is exothermic. Overall, energy will be given out.

So generally speaking, any substance that is able to react to form substances with more stable bonds (overall) will give out energy in the process. Such a substance is therefore said to have chemical potential energy.

Example: Methane reacts with oxygen to form carbondioxide and water. This is a combustion reaction. The bond enthalpy of carbondioxide is very high (i.e. it has very stable bonds) hence the reaction is exothermic- heat energy is given out in the reaction. In fact many reactions that produce carbon dioxide are exothermic due to carbondioxide high bond enthalpy *(there are exceptions too!)
 


Try Wikipedia, "chemical energy".
 


Water?
 
So I know that electrons are fundamental, there's no 'material' that makes them up, it's like talking about a colour itself rather than a car or a flower. Now protons and neutrons and quarks and whatever other stuff is there fundamentally, I want someone to kind of teach me these, I have a lot of questions that books might not give the answer in the way I understand. Thanks
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