FOR the analysis of the nitrate content of sea water, and for certain tests on alkaloids, it is necessary to have sulphuric acid free from all but the most minute amounts of nitric acid.

Neutralisation also moves the pH of an alkali down towards seven. Several different bases can neutralise acids, and water is always ... copper carbonate and sulfuric acid react to produce copper ...

As well as being a strong acid, sulfuric acid is also a dehydrating agent, meaning it is very good at removing water from other substances. There are two examples you need to be aware of.