chemistry

if a small piece of sodium is dropped into water,it begins to react, forming hydrogen gas and sodium hydroxide. In the equation, 2Na(s)+2H2O(l) 2NaOH(aq)+H2(g),the sodium hydroxide that is formed is a..

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  1. NaOH is a base. an electrolyte. a hydroxide. is ionizable.

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  2. with the exception of the transition elements, Groups3-12 in the periodic Table, and the noble gases, Group 18, atomic radii___ within periods, while atomic radii___ within groups.

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  3. Decrease from left to right and increase from top to bottom.

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