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Neutralization reaction

Neutralization reaction. A-Review. What’s an acid? Example? What’s a base? Example?. B- What is neutralization reaction? . B1- Neutralization reaction occurs when acid reacts with a base to form a salt General formula: Acid + Base  Salt + Water E.g. H Cl + Na OH  Na Cl + H OH

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Neutralization reaction

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  1. Neutralization reaction

  2. A-Review • What’s an acid? Example? • What’s a base? Example?

  3. B- What is neutralization reaction? B1- Neutralization reaction occurs when acid reacts with a base to form a salt General formula: Acid + Base  Salt + Water E.g. HCl + NaOH NaCl + HOH Which type of reaction is it? - Double displacement

  4. C-More neutralization reaction examples • HCl + Ca(OH)2 • HBr + KOH  3. HF + NaOH 

  5. C-More neutralization reaction examples • HCl + Ca(OH)2 CaCl2 + H2O • HBr + KOH  KBr + H2O 3. HF + NaOH NaF + H2O

  6. D-Applications of Neutralization reactions D1. Antacids are base (e.g Mg(OH)2, Al(OH)3) that neutralize excessive stomach acid Our stomach lining

  7. E-Salt production E1- Commercially done by evaporation of sea water E2- Chemically done as HCl + NaOH NaCl + HOH

  8. F-Detergent and Soap F1-What the texture of the base? F2. Slippery F3. Because base reacts with the acid of your skin in a neutralization reaction to form soap

  9. G. What would in case of? G1. neutralize H2SO4 with strong bases such as NaOH or Ca(OH)2

  10. H-Neutralization reaction in a swimming pool H1. Hypochlorous acid (HClO) kills bacteria and algae H2. NaOCl (bleach) is added to pool to produce HClO (H+, ClO-): H3. OCl- + H+ HClO H4. How is bleach produced? Cl2 + 2NaOH + → NaOCl + NaCl + H2O

  11. H.Neutralization reaction in a swimming pool (Cont.) H5. If the pool is too acidic, metal pipelines get corroded. What should be added to neutralize? H6. Na2CO3 is added H7. If the pool is too basic, CaCO3 will form. What should be added to neutralize? H8. HCl is added

  12. I-Hazard with household chemicals I1. Never mix NH3 and NaClO (bleach) NH3 + NaClO  NaONH3 + Cl2 I2. Cl2 is a very toxic gas, used as weapon during WWI & II I3. Exposure can lead to death READ THE LABEL CAREFULLY

  13. J- Acid rain & its sources J1. CO2 + H2O  H2CO3 occurs naturally J2. Human contribution to acid rain: J3. Cars produces: NO2 + H2O  HNO3 and J4. Industry: S8 +O2  SO2 SO2 +O2  SO3 SO3 +H2O  H2SO4

  14. Acid rain impacts?How to remedy acid rain?

  15. K. How to remedy acid rain K1. Liming: adding CaCO3 into pond to neutralize the acid from acid rain and mining run-offs K2.Use scrubbers on smokestacks of industrial plants K3.cycling

  16. L. Bee sting When bee stings, formic acid is release Bases should be used to neutralize and reduce pain

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