The sum of the coefficients in the equation for the reaction between sodium and water is …

We start solving the problem by drawing up the equation for the reaction of interaction of sodium with water.

So, first of all, let’s write down the formulas of the substances Na – sodium and H20 – water.

When water interacts with sodium, we get sodium hydroxide and hydrogen.

We write down the reaction equation:

Na + H2O = NaOH + H2.

Equalize the equation and get:

2Na + 2H2O = 2NaOH + H2.

We need to find the sum of the coefficients and select one of the given answer options.

So, the sum of the coefficients is: 2 + 2 + 2 + 1 = 7.