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  1. www.savemyexams.com › as › biologyWater & the Hydrogen Bond (CIE AS Biology) - Save My Exams

    Revision notes on Water & the Hydrogen Bond for the CIE AS Biology syllabus, written by the Biology experts at Save My Exams.

  2. cognitoedu.org › coursesubtopic › b3-alevel-cie_TPYRmAlBWater Revision notes | A-Level Biology CIE | Cognito

    A molecule of water (H2O) is made up of one oxygen atom (O) joined to two hydrogen atoms (H). These atoms are held together by two covalent bonds. Oxygen shares one electron with each hydrogen atom while each hydrogen atom shares its one electron with oxygen. Water is a dipolar molecule.

  3. cognitoedu.org › courseflashcards › b3-alevel-cieWater Flashcards | A-Level Biology CIE | Cognito

    A molecule of water (H 2 O) is made up of one oxygen atom (O) joined to two hydrogen atoms (H). These atoms are held together by 2 covalent bonds. Answer in your head, out loud, or on paper, then tap the card to flip. Why is water a dipolar molecule? Water has both positive and negative poles, making it a dipolar molecule.

  4. studyrocket.co.uk › revision › a-level-biology-caieWater – A Level Biology CAIE Revision – Study Rocket

    When frozen, water forms a structured lattice held together by hydrogen bonds, which makes ice less dense than liquid water, allowing it to float. This feature provides an insulating layer on water bodies during the cold weather, protecting aquatic life underneath.

  5. cognitoedu.org › courserevise › b3-alevel-cieWater Quiz | A-Level Biology CIE | Cognito - cognitoedu.org

    Which of the following chemical bonds hold oxygen and hydrogen together within a water molecule?

  6. pmt.physicsandmathstutor.com › download › BiologyDefinitions - Topic 2 Biological molecules - CAIE Biology A-level

    Hydrogen bond - A type of weak bond formed between an electropositive hydrogen and an electronegative atom like oxygen or nitrogen. Hydrolysis reaction - A type of reaction involving the use of a water molecule that breaks a chemical bond between two molecules. Hydrophobic interaction - Polar side chains face the cytosol.

  7. www.savemyexams.com › a-level › biologyWater & the Hydrogen Bond (CIE A Level Biology)

    Revision notes on 2.4.1 Water & the Hydrogen Bond for the CIE A Level Biology syllabus, written by the Biology experts at Save My Exams.