<span>0.453 moles O2 is the solution</span>
D. the potential energy of the reactants is low; the potential energy decreases gradually; then increases slightly.
Answer:
Elements in the same period have the same (number of electron shells)
Because Na has one too many electron to be stable, while Mg has 2. once they loose those electrons, they will be come ion. loosing one electron will give the ion a 1+ charge, and loosing 2 will create a 2+ charge
