Explanation
Na + H2O → NaOH + H2
To get the equation back in balance, simply follow these simple steps:
Step 1: To illustrate, let’s look at an unbalanced chemical equation.
Na + H2O → NaOH + H2
Step 2: Put the number of atoms in writing. Record the total number of atoms of each element that can be found on the reactant as well as the product side of the equation.
Step 3: In order to achieve a mass balance in a chemical equation, coefficients must be added. Take note that the numbers that are to be added as coefficients must be whole numbers and that each added coefficient applies to all of the atoms that are present in the particular molecule being discussed here.
2Na+2H2O → 2NaOH+H2