The world is presently saddled with a variety of environmental problems and the Philippines is one country that is heavily saddled with such problems. Prepare a slogan on how one environmental problem can be solved by the application of the principles of energetics and chemical reactions.

c. is the answer

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a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.

gasoline is a mixture. it contains several different kinds of compounds that can be present in a variety of ratios.