formulas and naming bmc ac
TRANSCRIPT
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• I can name binary molecular compounds given the formula.
• I can determine the formula of a binary molecular compound given the name.
Learning Targets
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• Binary molecular compounds are named using Greek prefixes. Here are the prefixes you will need to know:
Naming Binary Molecular Compounds
1 Mono 6 Hexa
2 Di 7 Hepta
3 Tri 8 Octa
4 Tetra 9 Nona
5 Penta 10 Deca
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• The first element in the formula is named first, and the full element name is used.
• The second element is named by dropping the ending and adding -ide.
• Prefixes are used to denote the number of atoms present.• The prefix mono- is never used for naming the first
element. For example, CO is called carbon monoxide, not monocarbon monoxide.
• If the element name begins with a vowel, the vowel is typically dropped from the prefix name. For example CO4 would be called carbon tetroxide, not carbon tetraoxide.
Naming Binary Molecular Compounds
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• The prefix is translated and written as a subscript to the right of the element symbol.
• The elements are written in the formula in the order they appear in the name. For example, carbon tetroxide would be written as CO4.
Formulas for Binary Molecular Compounds
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• CO2
Practice ProblemsName the following compounds.
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• CO2 Carbon Dioxide
Practice ProblemsName the following compounds.
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• CCl4
Practice ProblemsName the following compounds.
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• CCl4 Carbon Tetrachloride
Practice ProblemsName the following compounds.
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• SO3
Practice ProblemsName the following compounds.
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• SO3 Sulfur Trioxide
Practice ProblemsName the following compounds.
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• N6O9
Practice ProblemsName the following compounds.
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• N6O9 Hexanitrogen Nonoxide (notice the ‘a’ is dropped
from the prefix when the element begins with an ‘a’ or an ‘o’)
Practice ProblemsName the following compounds.
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• S5Br10
Practice ProblemsName the following compounds.
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• S5Br10 Pentasulfur Decabromide
Practice ProblemsName the following compounds.
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• Dinitrogen Pentoxide
Practice ProblemsWrite the correct formula for the following compounds.
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• Dinitrogen PentoxideN2O5
Practice ProblemsWrite the correct formula for the following compounds.
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• Iodine Trichloride
Practice ProblemsWrite the correct formula for the following compounds.
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• Iodine TrichlorideICl3
Practice ProblemsWrite the correct formula for the following compounds.
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• Sulfur Hexafluoride
Practice ProblemsWrite the correct formula for the following compounds.
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• Sulfur HexafluorideSF6
Practice ProblemsWrite the correct formula for the following compounds.
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• Xenon Tetrafluoride
Practice ProblemsWrite the correct formula for the following compounds.
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• Xenon TetrafluorideXeF4
Practice ProblemsWrite the correct formula for the following compounds.
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• Heptaphosphorus Decoxide
Practice ProblemsWrite the correct formula for the following compounds.
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• Heptaphosphorus DecoxideP7O10
Practice ProblemsWrite the correct formula for the following compounds.