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Draw and label a model of Tungsten ( W) Decode Sulfuric Acid: H 2 SO 4

Draw and label a model of Tungsten ( W) Decode Sulfuric Acid: H 2 SO 4 Is Sulfuric Acid an element, compound, or mixture? Explain. Tungsten Electron Configuration : 1s 2 2s 2    2p 6 3s 2    3p 6    3d 10 4s 2    4p 6    4d 10    4f 14 5s 2    5p 6    5d 4 6s 2. Your goals.

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Draw and label a model of Tungsten ( W) Decode Sulfuric Acid: H 2 SO 4

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  1. Draw and label a model of Tungsten (W) Decode Sulfuric Acid: H2SO4 Is Sulfuric Acid an element, compound, or mixture? Explain. Tungsten Electron Configuration:1s22s2   2p63s2   3p6   3d104s2   4p6   4d10   4f145s2   5p6   5d46s2

  2. Your goals You should be able to: • Identify a compound as acid or alkaline (Level 1-2) • Describe the difference between a positively charged ion and a negatively charged ion (Level 3-4) • Describe the difference between an acid and an alkaline solution (Level 3-4) • Explain the difference between an acid and an alkaline solution (Level 5-6)

  3. Vocabulary • acid • alkaline • base • neutral • ion

  4. Acids and bases

  5. Characteristics of Acids Characteristics of Bases • Taste sour (citrus fruit) • Reacts with metals • Causes pH paper to turn red or orange • SbF5 + HF SuperacidFluoroantimonic acid • (pH = -31) • Feel slippery • Taste bitter • Turns pH paper blue or green • Lithium Diisopropylamide(CH3)2CH]2NLi  pH = 22

  6. Examples of Acids Examples of bases • HClO4 perchloric acid • HI hydroiodic acid • HBr hydrobromic acid • HCl hydrochloric acid • HNO3 nitric acid • H2SO4 sulfuric acid • HClO3 chloric acid • HClO4 perchloric acid • CH3COOH acetic acid • HCOOH formic acid • HF hydrofluoric acid • LiOH lithium hydroxide • NaOH sodium hydroxide • KOH potassium hydroxide • Ca(OH)2 calcium hydroxide • RbOH rubidium hydroxide • Sr(OH)2 strontium hydroxide • CsOH cesium hydroxide • Ba(OH)2 barium hydroxide

  7. ION– an element that has lost or gained electrons • What would a positiveley charged carbon ion look like? • What would a negatively charged carbon ion look like?

  8. What are they? (Arrhenius, 1887) Acids Alkalines • acids give off (H+) into water • Have excess hydrogen ions • Acids are like wet sponges – • when you squeeze the wet sponge the liquid comes out • When you put an acid in water H+ are released. • Bases take H+ from water • Bases are like dry sponges • when you put water on a dry sponge, it soaks water up. • When you put an alkaline into water it absorbs H+

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