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Subscripts, Superscripts and Coefficients. superscripts. SO 4 3-. Al 2+. 5. Al 3 (SO 4 ) 2. coefficient. subscripts. ALUMINUM SULFATE. Subscripts, Superscripts and Coefficients. SO 4 2-. Mg 2+. 3. MgSO 4. MAGNESIUM SULFATE. Subscripts, Superscripts and Coefficients. NO 3 1-.
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Subscripts, Superscripts and Coefficients superscripts SO43- Al2+ 5 Al3(SO4 )2 coefficient subscripts ALUMINUM SULFATE
Subscripts, Superscripts and Coefficients SO42- Mg2+ 3 MgSO4 MAGNESIUM SULFATE
Subscripts, Superscripts and Coefficients NO31- Mg2+ 4 MgNO3 Mg(NO3)2 2 subscript MAGNESIUM NITRATE
O O S O O H H Interpretation of a Chemical Formula Sulfuric Acid H2SO4 Two atoms of hydrogen One atom of sulfur Four atoms of oxygen
Chemical Formulas C8H18 Subscript indicates that there are 8 carbon atoms in a molecule of octane. Subscript indicates that there are 18 hydrogen atoms in a molecule of octane. Davis, Metcalfe, Williams, Castka, Modern Chemistry, 1999, page 203
Stock System of Nomenclature CuCl2 Name of Roman cation numeral indicating charge Name of anion + copper (II) chloride
Chemical Formulas Al2(SO4)3 Subscript 2 refers to 2 aluminum atoms. Subscript 4 refers to 4 oxygen atoms in sulfate ion. Subscript 3 refers to everything inside parentheses. Here there are 3 sulfate ions, with a total of 3 sulfur atoms and 12 oxygen atoms. Davis, Metcalfe, Williams, Castka, Modern Chemistry, 1999, page 204
Naming Binary Ionic Compounds Al2O3 Name of cation Name of anion aluminum oxide Davis, Metcalfe, Williams, Castka, Modern Chemistry, 1999, page 207
The OLD System of Nomenclature CuCl2 Name of Name of anion cation -ic higher oxidation # -ous lower oxidation # + Cupric chloride Davis, Metcalfe, Williams, Castka, Modern Chemistry, 1999, page 208