Write a balanced molecular equation

Question

Write the balanced molecular equation for the neutralization reaction between HCl and Ba(OH)2 in aqueous solution. Include physical states.

Answer 1

HCl is a monoprotic acid (1 H⁺) and Ba(OH)₂ has 2 OH^- groups, so it will take TWO HCl to neutralize ONE Ba(OH)₂.

The balanced molecular equation for this reaction is:

2HCl(aq) + Ba(OH)₂(aq) ===> BaCl₂(aq) + 2H₂O(l)