Neutralisation Reactions

• when an acid reacts with a metal oxide, water and salt are formed
• acid reacts with a metal oxide:

  • Acid + metal oxide ➔ salt + water
• type of reaction when an acid and a base react together:

  • Neutralisation reaction 
• During a neutralisation reaction, the positive hydrogen ions from the acid react with the negative hydroxide ions from the alkali to form molecules of water
• when an acid reacts with a metal hydroxide, salt and water are formed
• an acid reacts with a metal hydroxide:

  • Acid + metal hydroxide ➔ salt + water
• when an acid reacts with a metal carbonate, carbon dioxide, a salt and water are formed
• an acid reacts with a metal carbonate:

  • Acid + metal carbonate ➔ salt + water + carbon dioxide
• how to obtain soluble salt crystals from an acid-base reaction:

  1. place dilute acid in a beaker and heat Gentilly
  2. Add the solid base bit by bit until it stops reacting, which means it's in excess
  3. Isolate the salt solution by filtering out the excess solid base using filter paper and a funnel
  4. Heat the salt solution gently in a water bath until crystals start to form
  5. Let the solution cool further, which will cause more crystals to precipitate
  6. Filter out the soluble salt crystals using filter paper and funnel