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Chapter 9

Sodium chloride. Nitrogen dioxide. Chapter 9. Carbon monoxide. Hydrochloric acid. Calcium fluoride. Naming ACIDS. Magnesium sulphate. Hydrogen peroxide. Naming Acids.

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Chapter 9

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  1. Sodium chloride Nitrogen dioxide Chapter 9 Carbon monoxide Hydrochloric acid Calcium fluoride Naming ACIDS Magnesium sulphate Hydrogen peroxide

  2. Naming Acids

  3. An ACID is a substance that when put into water, gives away a hydrogen ion (H+1) to another substance in the water solution. HCl + H2O HCl(aq) There are two types of acids: 1. Binary acids-HCl(aq) 2. Ternary acids-H2SO4(aq) -polyatomic ions (ending in ate) -polyatomic ions (ending in ite)

  4. Naming Binary Acids EX: HCl(aq) 1. Use the prefix hydrofor hydrogen 2. Anion ending changes from ide to ic 3. Add the word acid at the end. hydrochloric acid

  5. Naming Ternary Acids Polyatomic ions ending in ate EX: H2SO4 1. NO hydro prefix!!! 2. Anion ending changes from ATE toIC -Sulfate change to Sulfuric “ICIATEthat” 3. Add the word acid at the end Sulfuric acid

  6. Naming Ternary Acids Polyatomic ions ending in ite EX: H2SO3 1. NO hydro prefix!!! 2. Anion ending changes from ITE toOUS -Sulfite change to Sulfurous “RITEOUS” 3. Add the word acid at the end Sulfurous acid

  7. Practice Naming Acids 1. H3PO4 -PO4 = phosphate -Use saying “ICIATEthat” Answer= Phosphoric acid 2. HNO2 -NO2 = nitrite -Use saying “RITEOUS” Answer= Nitrous acid

  8. Writing Acids

  9. How to Write a Formula for an Acid: BINARY ACIDS Ex: hydrosulfuric acid 1. Write down symbols (H and S) 2. Determine Charges (H+1 S-2) 3. Cancel charges or use criss-cross method to form subscripts to cancel out charges 4. H2S

  10. Ternary ACIDS Ex: sulfuric acid 1. No hydro prefix so we have a polyatomic ion: In this case “ICIATEthat” sulfuric = sulfate (SO4)-2 Can also be “RITEOUS” sulfurous = sulfite 2. Write down symbols (H and SO4) 3. Determine Charges (H+1 SO4-2) 4. Cancel charges or use criss-cross method to form subscripts to cancel out charges 5. H2SO4

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