Write the balanced molecular equation for the reaction of barium hydroxide with perchloric acid. What is the coefficient of H2O?

The reaction of perchloric acid and barium hydroxide yields to barium perchlorate (Ba (ClO4) 2) and water (H2O). The resulting balanced equation is 2 HClO4 + Ba (OH) 2 = Ba (ClO4) 2 + 2 H2O. This means, for every mole of barium perchlorate produced, 2 moles of perchloric acid and barium hydroxide are required.

Ba (OH) 2 + 2HClO4 - > Ba (ClO4) 2 + 2H2O

The coefficient of H2O is 2

Explanation:

Ba (OH) 2 + HClO4 - > Ba (ClO4) 2 + H2O

Now let us balance the equation as shown below:

There are 2 atoms of Cl on the right and 1 atom on the left. It can be balanced by putting 2 in front of HClO4 as shown below:

Ba (OH) 2 + 2HClO4 - > Ba (ClO4) 2 + H2O

Now, there are a total of 4 atoms of H on the left and 2 on the right. It is balanced by putting 2 in front of H2O as shown below

Ba (OH) 2 + 2HClO4 - > Ba (ClO4) 2 + 2H2O

Now, the equation is balanced. From the balanced equation, the coefficient of H2O is 2