Exothermic reaction discharges energy in forms of
light, heat or sound, thus it is represented by negative flow of heat. In this
equation:
NaOH (aq) + H2SO4 (aq)
à
H2O (l) + Na2SO4 (aq)
When the solution of Sodium hydroxide is added to the Sulphuric acid, water and Sodium
sulfate is produced. To balance this, we put (2) two on Sodium hydroxide and (2)
two on water.
2NaOH (aq) +
H2SO4 (aq) à
2H2O
(l) + Na2SO4 (aq)
