1.2 Water
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- Created on: 28-10-16 12:49
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- 1.2 Water
- Water has a dipole nature (positive hydrogen end and negative oxygen) The positive hydrogen will be attracted to the negative ion and the negative oxygen will be attracted to the positive ion so the ions and totally surrounded by the water so they dissolve.
- Water is very cohesive. Water molecules attract each other because they're dipolar which helps water to flow, making it great for transporting substances.
- High specific heat capacity as a lot of energy is needed to break the hydrogen bonds allowing us to control out temperature easily as we are not affected by environmental changes as easily.
- Water has a simple structure of one oxygen atom joined to 2 hydrogen atoms by shared electrons. The negative hydrogen electron is pulled towards the oxygen, so the other side of the hydrogen is left with a slightly positive charge. This makes a dipole molecule.
- Amphoteric so it can act as an acid to produce h+ ions and as a base to produce oh- ions so is ideal for reactions in the body.
- This acts as a buffer because when reactions take place there is no pH change.
- High surface tension because hydrogen bonds cause the atoms to be pulled together and down. Important in plants for structure and support for turgidity and transport systems.
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