why do sodium reacts vigrously with water
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Sodium reacts violently with water because it is much more active than hydrogen. ... Therefore, a redox reaction between H+ and Na to give H(2) and Na+ is very energetically favourable. So much energy is released that the hydrogen gas released can burn.
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Sodium reacts vigorously with water; which other elements also do and why?
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Sodium reacts violently with water because it is much more active than hydrogen. Although water is covalent, not ionic, it is helpful sometimes to consider water to be [H+][OH-], since after all hydrogen has a slight excess of positive charge. Sodium is very stable in a positive oxidation state in comparison to neutral sodium atoms; the difference is much greater than that for hydrogen. Therefore, a redox reaction between H+ and Na to give H(2) and Na+ is very energetically favorable. So much energy is released that the hydrogen gas released can burn.
2Na(s) + 2H2O(l) -----> 2NaOH(aq) + H2(g)
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