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Level 1 Chemestry '''Naming Molecular Compounds''' A. Chemical Name to Chemical Formula 1. First write down the symbol of the non-metal and then the non-metal. 2. Using the table of prefix below, the subscript is the number from the prefix. For no prefix, it is a subscript of "1" EXAMPLE:Disulfur heptachloride Step 1 '''S''' '''Cl''' Step 2 '''S<sub>2</sub>Cl<sub>6</sub>''' MORE EXAMPLES: Carbon disulfide, Decaoxygen pentanitride (answers on practice sheet) PREFIX TABLE mono- 1 di- 2 tri- 3 tetra- 4 penta- 5 hexa- 6 hepta- 7 octa- 8 nona-9 deca-10 '''B. Chemical Formula to Chemical Name''' 1. Write down the first non- metal name. 2. Add prefix from table (1st letter needs to be capital)End of 1st word. 3. Write down the second non-metal name. Add prefix from the table (no caps in 1st letter). IMPORTANT: If first element has subscript of "1", you '''Do Not add MONO'''.
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