Water

Beschreibung

Mind map about water from genuine properties to thermal etc.
sadiaali363
Mindmap von sadiaali363, aktualisiert more than 1 year ago
sadiaali363
Erstellt von sadiaali363 vor etwa 10 Jahre
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Zusammenfassung der Ressource

Water
  1. Thermal properties:
    1. High specific heat capacity; Hydrogen bonds
      1. High boiling point
        1. 100 Degrees
        2. Excellent coolant e.g sweating, panting
          1. Aquatic life can still live under ice; water is densest at 4 degrees- then shrinks
            1. Requires lots of energy to seperate water + hydrogen molecules apart
              1. Cohesive structure
                1. The sticking together of particles of same substance.
              2. Cohesive properties:
                1. Water molecules stick together --> Hydrogen bonds
                  1. Water: dragged up via Xylem vessels to top leaves of trees
                  2. Surface tension
                    1. Living things can live on surface of ponds & streams e.g. pondskater
                  3. Solvent properties:
                    1. Universal solvent
                      1. Can dissolve many substances esp POLAR ones.
                        1. POLAR: Substances that have + & - charges in molecular structure.
                        2. Only HYDROPHOBIC substances DON'T dissolve in water
                        3. Metabolic reactions happen in AQUEOUS solutions
                          1. Many substances can be transported around if dissolved in SAP/BLOOD
                          2. Transports materials e.g. blood, sap
                            1. Supports plant structure
                              1. Used in photoshynthesis
                                1. 6CO2 + 6H2O ------> C6H1206 + 6O2
                                  1. Carbon Dioxide + Water -------> Glucose + Oxygen
                                2. Hydrogen (slightly +) attracted to Oxygen (slightly -) ---> Covalent bonding between them
                                  1. Water is stable structure; numerous HYDROGEN bonds
                                    1. Water structure is DIPOLAR
                                      1. Electrically neutral molecule carrying + & - charge
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