While burning coal and charcoal, you notice that coal releases more heat than charcoal. That means that the is in charcoal than in coal.
Word Bank:
gravitational energy lower chemical potential energy higher elastic energy lower chemical potential energy
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To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.

Iwould appreciate if someone could me.

Which factor is likely to impact the possible number of compounds? presence of unlimited number of elements in the periodic table the inability of atoms to align perfectly with other atoms the ability of all elements to react with every other element all elements being equally reactive