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a substance has a melting point of 80 °c. which of the following is true for the substance? it will also change from a liquid to a gas at 80 °c while the liquid loses energy. it will also change from a liquid to a gas at 80 °c while the liquid gains energy. it will also change from a liquid to a solid at 80 °c while the liquid gains energy. it will also change from a liquid to a solid at 80 °c while the liquid loses energy.

It will also change from a liquid to a solid at 80 °C while the liquid loses energy.

Explanation:

   Melting point is the temperature at which a substance changes from solid to liquid. This temperature is the same when the substance solidifies, (from liquid to solid state).

  To occur phase changes in matter, it is necessary to give or remove heat from a body. Heat is the thermal energy that determines the degree of agitation of molecules. When altered, it can cause changes in the molecular arrangement of substances, causing phase changes.  

  For solidification to occur (liquid to solid), the substance must lose energy, which causes the molecular vibrations to diminish and become more united.

D -  It will also change from a liquid to a solid at 80 °C while the liquid loses energy

Explanation:

i wish i could but this one is weird give me abc and i can solve it.

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.