Sodium hydroxide and hydrochloric acid react as shown in this equation.
NaOH + HCl → NaCl + H2O
(aq) (aq) (aq) (l)
i) Which type of chemical reaction is this?
ii) The reaction is exothermic. Explain what that means.
iii) Differentiate exothermic reaction and endothermic reaction.
iv) What happens to the temperature of the solution as the chemicals react?
(i) This is a type of neutralisation reaction in which an acid reacts with base to form salt and water.
(ii) It is said that the reaction is exothermic which means that the reaction proceeds with evolution of heat energy.
(iii) 
(iv) The temperature of the solution increases as the chemicals reacts.
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