Hello everyone
In class on Friday we saw the chemical reactions: two experiences.
Remember that there are two types of reactions:
In exothermic chemical reactions follows heat, AQ is negative, meaning that the energy of the products is less than the energy of the reactants, for example in combustion reactions.
In chemical reactions endothermic heat is absorbed, AQ is positive and means that the energy of the products is greater than the energy of the reactants, for example in photosynthesis.
Greetings to all. Have a good weekend.
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