Offer advice on how to name and write chemical formulas
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Identify what you are working with
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Is it an Ionic Compound?
(Metal+NM)
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NO
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Is it a Molecular Compound?
(NM+NM)
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NO
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Is it an Acid? (Contains an H at beginning of formula, or is Created through reactions with a nonmetal oxide + Water)
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NO
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Is it a hydrate?
(Contains H20 after the ionic compound)
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YES
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YES
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YES
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YES
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Keep the name of the Metal, and change the nonmetal ending to -ide
When writing make sure to criss cross the charges of the elements
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Remove the ending and add -ide at the end of the second element
Do not criss cross charges when writing just use the amount given by the suffixes
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Check to see the endings of the second element, Look to see -ide, -ite. -ate
When writing make sure to always use Hydrogen in the beginning
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Use numerical prefix followed by -hydrate
When writing including H20 always
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Result:
You should end up with answers similar to this
AlO- Aluminum Oxide
Or
BaN-Barium Nitride
(Charges cancel for both)
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Does the first element contain more than 1 of itself?
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Does the second element or polyatomic ion end in -ide?
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Result:
You should end up with answers like
Copper sulfate pentahydrate
or CuSO4 * 5H20
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YES
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NO
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YES
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NO
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Use prefix before the first and second element
Ex. 1-Mono, 2-Di, 3-Tri, 4-Tetra, 5-Penta...
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Use the Prefix before the Second Element Only
Ex. 1-Mono, 2-Di, 3-Tri, 4-Tetra, 5-Penta...
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For -ide, add hydro to the beginning and change -ide to -ic and add acid to the end
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Does the second element or polyatomic ion end with -ite?
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NO
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Does the Second element or polyatomic ion end with -ate?
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YES
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YES
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Result:
You will end up naming elements like with
Diphosphorus Pentoxide P2O5
or Dinitrogen tetrasulfide N2S4
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Result:You will end up naming elements such as
Sulfur Trioxide SO3, or Carbon Tetrachloride CCl4
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Result:
You should end up with names like
Hydrochloric acid
(Chloride changes to Chloric) HCL
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For -ite, change the ending -ite to -ous and add acid at the end
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For -ate, change the ending -ate to -ic and add acid at the end
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NO
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Result:
You should end up with names like
Hypochlorous acid, or HClO (ClO is Hypochlorite, a polyatomic ion)
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Result:
You should end up with names like
Chloric acid , or HClO3 (ClO3 is chlorate, a polyatomic ion)
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Naming and Writing Chemical Formulas
More flowcharts
