The pH scale shows how acidic a substance is. Learn what pH means and how it is measured in this KS3 chemistry guide from BBC Bitesize. Neutralisation reactions Acids and alkalis react together in ...

Speaker one Neutralisation reactions take place in our everyday lives. For example, there are bacteria in your mouths that convert sugar in foods to an acid which can damage your tooth enamel. So ...

An alkali is derived from the Arabic word 'qali' means ' from the ashes'. As ashes are mixed with water used for cleaning products and are made of alkali materials. It is a basic hydroxide or ionic ...