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  • Acid: any substance that donates H+ ions; A solution that contains more H+ than OH- ions
  • Base: any substance that removes free H+ from a solution¬†
  • Alkali: any substance that donates OH- ions into a solution; A solution that contains more OH- than H+ ions
  • pH: the concentration of hydrogen ions (H+) in a solution
  • Acidic: a solution containing excess H+ ions; a solution with a pH less than 7
  • Alkaline: a solution containing fewer H+ than OH- ions; a solution with a pH greater than 7
  • Neutral: a solution where there are exactly the same number of H+ and OH- ions
  • Dissociation: molecules in solution break apart into ions and then re-form again
  • Buffer: a molecule that can both accept H+ and donate that H+ ions
  • Denaturation: alteration of a molecule's shape and structure leading to loss of function following rearrangement of its atoms
  • Neutralisation: combination of an acid and an alkali to form a salt and water
  • Salt: a molecule formed by the combination of an acid without its free H+ ions and an alkali without its OH- ions


Title/link Description
The Kidneys and Drug Excretion (RLO) An examination of the role of the kidney in the elimination of drugs from the body.
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Acids, Alkalis and Bases: Further application - Print summary

This RLO covers acids, alkalis and bases in more depth.

Learning outcomes

By completing this resource you will have learnt more about acids, alkalis and bases including:

  • How acids, alkalis and bases dissociate
  • Denaturation and neutralisation
  • Formation of salts

Learning outcomes

By completing this resource you will have learnt more about acids, alkalis and bases including:

  • How acids, alkalis and bases dissociate
  • Denaturation and neutralisation
  • Formation of salts

This resource was developed by:

Jennifer Dandrea - content author

Paul Robertson, Liz Hilton - developers

The resource was originally funded by RLO-CETL.

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