Acids And Bases

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acids and bases!

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  • http://images.google.com.sg/imgres?imgurl=http://www.deviantart.com/download/117936233/Acids_and_Bases_Mindap_by_Olyva.jpg&imgrefurl=http://olyva.deviantart.com/art/Acids-and-Bases-Mindmap-117936233&usg=__CyCL_ikUX9zJ6rnfJgtnrEGaxgU=&h=761&w=989&sz=156&hl=en&start=27&sig2=4VLbvQMiDoMfcD0-wHEU2w&um=1&tbnid=VXC0gEEAbErNuM:&tbnh=115&tbnw=149&prev=/images%3Fq%3Dacid%2Band%2Bbases%26ndsp%3D21%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26sa%3DN%26start%3D21%26um%3D1&ei=09LESuLqItOMkAWo07lD
  • Acids And Bases

    1. 2. WHAT ARE ACIDS? <ul><li>Acids produce hydrogen ions in water. </li></ul><ul><li>Example of an acid (HA) in solution </li></ul>A - H + H + A - A - H + H + A -
    2. 3. WHAT ARE BASES? <ul><li>They are metal oxides or metal hydroxides . </li></ul><ul><li>Examples: </li></ul><ul><ul><li>Sodium hydroxide (NaOH) </li></ul></ul><ul><ul><li>Copper (II) oxide (CuO) </li></ul></ul>Copper (II) Oxide NaOH Can you name some other examples of bases?
    3. 4. SOLUBLE BASES <ul><li>Soluble bases are called alkalis </li></ul><ul><li>Alkali dissolves in water to produce hydroxide (OH - ) ions </li></ul><ul><li>Example: </li></ul><ul><ul><li>NaOH </li></ul></ul>Na + OH - Na + OH - Na + OH - Na + OH -
    4. 5. WHAT HAPPENS WHEN ACID REACTS WITH A BASE? <ul><li>Let us visualize the changes that takes place on the molecular level! </li></ul>Click me
    5. 6. ACID AND BASE REACTION <ul><li>The reaction between an acid and a base is called neutralisation. </li></ul><ul><li>Example 1: </li></ul><ul><ul><li>Sodium hydroxide + hydrochloric acid  Sodium chloride + water </li></ul></ul>Now, let’s write the chemical equation! NaOH + HCl  NaCl + H 2 O
    6. 7. ACID AND BASE REACTION <ul><li>Example 2 </li></ul><ul><li>Copper (II) oxide + sulfuric acid  copper(II) sulfate + water </li></ul>Now, let’s write the chemical equation! CuO + H 2 SO 4  CuSO 4 + H 2 O
    7. 8. SUMMARY: NEUTRALISATION REACTION <ul><li>Acid + Base  Salt + water </li></ul><ul><li>Ionic Equation: </li></ul><ul><ul><li>H + (aq) + OH - (aq)  H 2 O (l) </li></ul></ul>
    8. 9. CAN YOU ALSO… DRAW YOUR OWN CONCEPT MAP!?! <ul><li>Group leaders: </li></ul><ul><li>Create a mindmap on mindmeister </li></ul><ul><li>Invite your group mates </li></ul><ul><li>All members of the group: </li></ul><ul><li>Contribute to the concept map </li></ul><ul><li>Post the finalized copy of concept map onto your pbwiki group </li></ul>
    9. 10. THE END…

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