2 Binary Molecular Compounds Compounds between two nonmetalsFirst element in the formula is named first.Keeps its element nameGets a prefix if there is a subscript on itSecond element is named secondUse the root of the element name plus the -ide suffixAlways use a prefix on the second element
3 List of Prefixes 1 = mon(o) 2 = di 3 = tri 4 = tetra 5 = penta 6 = hexa7 = hepta8 = octa9 = nona10 = dekaList of Prefixes
5 Practice – Write the Formula Compound NameCompound FormulaCarbon dioxideCarbon monoxideDiphosphorus pentoxideDinitrogen monoxideSilicon dioxideCarbon tetrabromideSulfur dioxidePhosphorus pentabromideIodine trichlorideNitrogen triiodideDinitrogen trioxideCheck next slide for answers
6 Answers – Write the Formula Compound NameCompound FormulaCarbon dioxideCO2Carbon monoxideCODiphosphorus pentoxideP2O5Dinitrogen monoxideN2OSilicon dioxideSiO2Carbon tetrabromideCBr4Sulfur dioxideSO2Phosphorus pentabromidePBr5Iodine trichlorideICl3Nitrogen triiodideNI3Dinitrogen trioxideN2O3
7 Practice – Name the Compounds Compound FormulaCompound NameN2O4SO3NONO2As2O5PCl3CCl4H2OSeF6Check next slide for answers
8 Answers – Name the Compounds Compound FormulaCompound NameN2O4dinitrogen tetroxideSO3sulfur trioxideNOnitrogen monoxideNO2nitrogen dioxideAs2O5diarsenic pentoxidePCl3phosphorus trichlorideCCl4carbon tetrachlorideH2Odinitrogen monoxideSeF6selenium hexafluoride
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