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What are some characteristics of acids and bases?. pH < 7. pH > 7. Change the color of acid-base indicators. Bitter Taste. Sour Taste. Produce H+ ion. Produce OH- ion. Acids. Bases. React with each other to form salt and water. Turns Red Litmus paper BLUE. Turns Blue
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What are some characteristics of acids and bases? pH < 7 pH > 7 Change the color of acid-base indicators. Bitter Taste Sour Taste Produce H+ ion Produce OH- ion Acids Bases React with each other to form salt and water Turns Red Litmus paper BLUE Turns Blue Litmus paper RED React with active metals to form H2 gas. Feel slippery Electrolytes Called Alkalines
Rules for naming Binary Acids (H+nonmetal) • Start with HYDRO~ • Write the ROOT of the NONMETAL • Change the ending to ~IC • Add the word ACID Example: H2S hydrosulfuric acid
You try …. HF HCl HBr Hydroflouric acid Hydrochloric acid Hydrobromicacid
Rules for naming Ternary Acids (H+polyatomic) • NO HYDRO!!!!!!!!!! • Name the POLYATOMIC ION • Change the ending; • ate IC • ite OUS • Add ACID Examples H2SO4 sulfuric acid H2SO3 sulfurous acid
You try …. HNO3 HNO₂ H₂CO3 Nitric acid Nitrousacid Carbonicacid
Formulas of Acids Step 1-- The cation will be hydrogen. Write H first+1 charge. Step 2-- Identify the anion and its charge (nonmetal or polyatomic) Step 3 --Balance the charges (Use criss-cross method)
Formulas of Acids Hydrofluoric Acid: -1 H +1 F H F 1 1 HF
Formulas of Acids Carbonic Acid: (CO3) H (CO3) -2 H +1 1 2 H2CO3
Names of Bases • Bases are compounds that produce hydroxide ions when dissolved in water. • We refer to them as-ALKALINE • Ionic compounds that are bases are named like ionic compounds
Naming Bases • Name cation (metal) • Name the anion (hydroxide) • Base Examples • NaOH: Sodium Hydroxide • LiOH: Lithium Hydroxide • KOH: Potassium Hydroxide • Ca(OH)2 : Calcium hydroxide
Formulas of Bases Lithium Hydroxide: (OH) Li +1 (OH) -1 Li 1 1 LiOH
Formulas of Bases Iron (II) Hydroxide: Fe +2 -1 (OH) (OH) Fe 2 1 Fe(OH)2
Name Each Acid or Base • A. HF:____________________ • B. HNO3 :_________________ • C. KOH :__________________ • D. H2 SO4 :_________________ • E. HMnO4:________________ • F. H3PO4:_________________ • G. H2S:____________________
Write the formula: • chromic acid :_________________ • iron (II) hydroxide:_____________ • hydriodic acid:_________________ • lithium hydroxide:_______________ • hydrobromic acid:_______________ • nitrous acid:___________________ • sodium hydroxide:_______________