Which is the correct skeleton equation for water + sodium sod hydroxide + hydrogen ?

H₂O + Na → NaOH + H₂

Explanation:

Firstly, a skeleton equation does not reflect the relative amount of reactants and products. A skeleton reaction only identifies the reactant and product by their chemical formula but it does not quantify them. A skeleton chemical equation is simply described as an unbalanced equation.

The question asked for the correct skeleton reaction of water and sodium to produce sodium hydroxide and hydrogen.

Let us represent them with their chemical formula

Water → H₂O

Sodium → Na

Sodium hydroxide → NaOH

Hydrogen → H₂

The skeleton reaction will be  

H₂O + Na → NaOH + H₂

precipitation

explanation:

when it goes from cloud to rain/back to earth in the form of rain