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1528055
Water
Descripción
Mind map about water from genuine properties to thermal etc.
Sin etiquetas
ocr
biology
as
water
properties
ocr as biology
as
Mapa Mental por
sadiaali363
, actualizado hace más de 1 año
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Creado por
sadiaali363
hace alrededor de 10 años
106
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Resumen del Recurso
Water
Thermal properties:
High specific heat capacity; Hydrogen bonds
High boiling point
100 Degrees
Excellent coolant e.g sweating, panting
Aquatic life can still live under ice; water is densest at 4 degrees- then shrinks
Requires lots of energy to seperate water + hydrogen molecules apart
Cohesive structure
The sticking together of particles of same substance.
Cohesive properties:
Water molecules stick together --> Hydrogen bonds
Water: dragged up via Xylem vessels to top leaves of trees
Surface tension
Living things can live on surface of ponds & streams e.g. pondskater
Solvent properties:
Universal solvent
Can dissolve many substances esp POLAR ones.
POLAR: Substances that have + & - charges in molecular structure.
Only HYDROPHOBIC substances DON'T dissolve in water
Metabolic reactions happen in AQUEOUS solutions
Many substances can be transported around if dissolved in SAP/BLOOD
Transports materials e.g. blood, sap
Supports plant structure
Used in photoshynthesis
6CO2 + 6H2O ------> C6H1206 + 6O2
Carbon Dioxide + Water -------> Glucose + Oxygen
Hydrogen (slightly +) attracted to Oxygen (slightly -) ---> Covalent bonding between them
Water is stable structure; numerous HYDROGEN bonds
Water structure is DIPOLAR
Electrically neutral molecule carrying + & - charge
Recursos multimedia adjuntos
polar.gif (image/gif)
hydro.gif (image/gif)
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