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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yes they ca   is ur ansswerrr

i think the answer is terrae but not 100 percent sure. ▓▬▬ §

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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~ trueboss72