EASC-101 Lecture Notes - Lecture 11: Carbon Tetrachloride, Properties Of Water, Roman Numerals
8 Apr 2016
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Document Summary
The combination of elements to form compounds has a chemical formula and a chemical name. The chemical formula uses symbols and numerals to identify which elements and how many atoms of each element are present in the compound. For example: ethanol ( c2 h6 o ) has 2 carbon atoms, 6 hydrogen atoms and 1 oxygen atom. To determine a chemical name, a standardized chemical naming system, or nomenclature, is used. Guyton de morveau in france developed it in 1787. Since 1920, the iupac ( international union of pure and applied chemistry ) is responsible for determining the appropriate name for each compound. If you know the formula for a compound you can determine its chemical name if you know its name, you can determine its formula. Write the chemical formula as determined by the name of the compound. (if a poly atomic ion is part of the formula, keep the poly-atomic ion intact)
