BY: Dorjee and Gianluca
Real uses of neutralisation
Plants cannot grow well in acidic soil therefore lime fertiliser such as powdered lime, CaO, limestone, CaCO 3 or ashes of burnt wood are added to the soil to neutralise it acidity. Also wasp stings are alkaline in nature. Vinegar is used to cure wasp stings because vinegar can neutralise the stings. Baking powder helps cakes to rise. It contains sodium hydrogen carbonate (bicarbonate of soda) and a weak acid. When the water is added, both water and the sodium hydrogen react. The reaction is like an acid acting on a carbonate. This gives out carbon dioxide, which raises the cake.