TP3

• Acid + Metal --> Salt + Hydrogen gas
• Acid + Base --> Salt + Water: Neutralization
• HNO3

  Nitric acid - Nitrate
• S04


  Sulphuric acid - Sulfate
• HCl


  Hydrochloric acid - Chloride
• Metal Carbonate + Acid --> Salt + Carbon Dioxide + Water
• acid + metal oxide → salt + water
• Reactivity order:

  Potassium, K

  Sodium , Na

  Calcium, Ca

  Magnesium, Mg

  Zinc, Zn

  Iron, Fe

  Copper, Cu

  Silver, Ag

  Gold, Au
• Metal + Water --> Metal Hydroxide + Hydrogen gas
• Stirring- To complete the reaction faster by mixing the reactants together.
• The reactivity series is based on the tendency of metals to lose electrons.
• acid + metal hydroxide → salt + water
• metal + oxygen --> metal oxide
• metal + water --> metal hydroxide + hydrogen
• Titration

  1. Place acid in a burette

  2. Measure out base into a small flask

  3. Add a few drops of universal indicator solution

  4. Add the acid from the burette slowly, swirling the flask as you add the acid

  5. When the universal indicator changes to green you have produced a natural solution

  6. Add a spatula of charcoal powder to the green solution. Mix it with a glass rod

  7. Filter the mixture

  8. Place the filtrate into evaporating basin and heat gently

  9. Stop heating when you see some crystals around the edge of the solution

  10. Leave the evaporating basin for a few days