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What are the different chemical formulas?

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Quick Answer

Examples of chemical formulas of compounds are HBr for hydrogen bromide, NaClO for sodium hypochlorite, NaOH for sodium hydroxide and NaCl for sodium chloride. Some chemical symbols for elements include H for hydrogen, C for carbon, Ti for Titanium, Sn for tin and I for Iodine.

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Chemical formulas are a short way of representing elements and the compounds they form. The elements, along with their symbols, are included in the periodic table. Elements in the periodic table are organized in a specific manner; left to right and top to bottom, in order of increasing atomic number. Elements that are in the same column have similar chemical characteristics and are said to be in the same group. Elements that are in the same row have the same period number.

Compounds are substances that have either two or more elements bonded together. Chemical formulas show not only the elements in the compound, but also the ratio of the elements to each other. The chemical formula also shows whether there is an element in the compound that has more than one atom. This is shown by a subscript number after the chemical symbol of the element. An example is the subscript 2 in H2O, which means that two atoms of hydrogen combine with one atom of oxygen.

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