One of the more common ionic compounds that is used often is baking soda. Baking soda is also known as bicarbonate or hydrogen carbonate.
Another common ionic compound is paper. This compound is composed of nitrogen, carbon and oxygen. Water is also an ionic compound, as well as drinking water, which is expressed as nitrogen and oxygen. Plastic is another example of an ionic compound that is made up of carbon and nitrogen. Some other examples are wine, glass, fireworks and dairy. All of the above are considered to be polyatomic ions because they are composed of two or more covalently bonded atoms. The ion acts as though it were actually only a single atom.