(b) Magnesium oxide reacts with dilute hydrochloric acid to produce magnesium chloride solution and water. MgO(s)+2HCl(aq)arrow MgCl_(2)(aq)+H_(2)O(l) Write the ionic equation for this reaction. pH=

## Step 1: Identifying the Ionic ComponentsIn the given reaction, we can identify the ionic components as Magnesium Chloride ( ) and Hydrochloric acid ( ). ## Step 2: Writing Phase ReactionThe phase reaction notation indicates that magnesium oxide ( ) is a solid and hydrochloric acid ( ) is in its aqueous form, which spells out \(MgO(s) + 2HCl(aq)\). These elements react to form two new substances, namely Magnesium Chloride (\(MgCl_2(aq)\)) and water (\(H_2O(l)\)) as per the given chemical equation \(MgO(s) + 2HCl(aq) \rightarrow MgCl_2(aq) + H_2O(l)\). ## Step 3: Formulate the Ionic equationFrom this reaction, we derive the Ionic equation as: The and take part in the reaction on inclusion of the hydrochloric acid and resultantly, the ionic equation for this reaction becomes \([Mg^{2+}(aq) + 2Cl^-(aq) + 2H^+(aq) + O^{2-}(aq)]-> [Mg^{2+}(aq) + 2Cl^-(aq) + H_2O(l)]\).### The Ionic Reaction Would be:### \([Mg^{2+}(aq) + 2Cl^-(aq) + 2H^+(aq) + O^{2-}(aq) \rightarrow Mg^{2+}(aq) + 2Cl^-(aq) + H_2O(l)]\)## Step 4: Formulate the Net Ionic EquationTo get to the net Ionic equation, we filter out the spectator ions which do not interact in the reaction. In this case, these would be and two . The net ionic equation will therefore include only participating ions. ### The Net Ionic Reaction Formula Would be:### \([2H^+(aq) + O^{2-}(aq) \rightarrow H_2O(l)]\)