There are 2 atoms in NaCl. This is because there is 1 atom of Na (sodium) and 1 atom of Cl (chlorine) in each NaCl molecule. Elements by themselves do not have a "number of atoms"- if you're talking about the atomic number, it's the number of protons (or electrons in a neutral atom) of an element.
Most likely a is the answer - because you generate 38 atp's but also consume an atp. each atp gives approx. less than 4 kcal so probably a is the closest answer.
Answer from: Quest
it takes on an electronical energy
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