Photosynethesis, respiration, and combustion.
<span>The answer is No, it is
not possible that the reverse reaction will occur at ordinary conditions. This
is because the entropy of the KCl and the O2 are much largely negative than
that of the KClO3. The entropy component of the Gibbs free energy assures that
the Gibbs free energy for the reverse reaction is positive (Positive Gibbs
means nonspontaneous reaction). </span>
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Answer:
it's easier to lose one electron because it's less work for the atom to do and easier to lose one than gain a whole 7, because the atom wants to gain a full outer shell as soon as possible
