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Unit 6: Chemical Nomenclature Naming and Writing Formulas for Acids
After today you will be able to… Identify polyatomic and monatomic ions and name them properly Write the chemical names and formulas of acids
Naming Acids Acids are ionic compounds that contain H +1 as their cation. Acids are named based on their anion.
If the anion ends in… “-ide” hydro ___ ic acid Example: H 2 S Hydrosulfuric acid Sulfide (S -2 ) is the anion! The root name of the anion goes here (remove-ide)
If the anion ends in… “-ate” ___ ic acid Example: H 2 SO 4 Sulfuric acid Sulfate (SO 4 -2 ) is the anion!
If the anion ends in… “-ite” ___ ous acid Example: H 2 SO 3 Sulfurous acid Sulfite (SO 3 -2 ) is the anion!
Mnemonic devices to help you remember: “ate something icky” “gingivite ous”
Formula Writing Use the reverse to determine the anion and balance out the charges for a neutral compound.
Examples Hydrophosphoric acid H +1 P -3 H +1 All acids contain a H +1 as the cation! Ask yourself, “What was the original ending?” H3PH3P Original ending “-ide”: phosphide
Examples Chromic acid H +1 (CrO 4 ) -2 H +1 Original ending “-ate”: chromate H 2 CrO 4
Examples Chlorous acid H +1 (ClO 2 ) -1 Original ending “-ite”: chlorite HClO 2
Acid A compound that produces hydrogen ions (H + ) when dissolved in water An ionic compound Cation = H + Anion = monatomic or polyatomic ions Only.
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Naming Compounds Page 13 of INB. Does Q = H QxRy YES NO Acid Naming Rules Is R a polyatomic ION YES NO Use prefix Hydro, change –ide to -ic and add acid.
Naming and Writing acids. What are Binary Acids? Binary means two elements Acid means it contains hydrogen The second element is a nonmetal hydrogen –
NAMING ACIDS. Three rules can help you name an acid with the general formula H n X. The naming system depends on the name of the anion. Each of the rules.
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Recap As we go through the following questions, write down the topics that you are having trouble with and then when you come in for extra help, you know.
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Covalent and Acid Naming Chapter 9. Covalent Naming Covalent compounds are compounds with ONLY non-metals. Covalent bonds form by SHARING electrons. 1.Write.
Courtesy: Binary Compounds: compounds composed of two elements. Binary ionic compounds contain a positive ion (cation) always written.
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Monatomic Ions Ions formed from a single atom Written as (E 2+ ) or (E 2- ) Change ending to -ide.
Acid & Base Nomenclature Almost there!. How to recognize a compound/formula as being an acid or base: Acid: has H, hydrogen, at the beginning. - Can.
CHEMISTRY— GOOD MORNING! Please take out: Naming Grid Lab notebook HW sheet Ask your partner, “How was your weekend?”
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