A1.1 Water Flashcards
(14 cards)
Type of bond in water
Polar covalent
Type of bond between water molecules
Hydrogen bonding
Cohesion
Ability for molecules of the same type to be attracted to each other
Adhesion
Ability for molecules of different types to be attracted to each other
Capillary action
Process of water moving upwards within narrow tube without input of energy
Polar molecules
Molecules with uneven distribution of charges
Hydrophilic and dissolve easily in water
Non polar molecules
Molecules that have even distribution of charges
Hydrophobic, do not dissolve easily in water
Water as medium for transport
In plants, sap dissolves to transport minerals and organic molecules
Water as medium for metabolism
Metabolic reactions are possible because reactants and enzymes are dissolved and can interact
Buoyancy of water v air
High for water, low for air
Viscosity of water v air
High resistance for water, low for air
Thermal conductivity of water v air
High for water, low for air
Specific heat capacity of water v air
High for water, low for air
Why water was retained on earth
High gravity, temperature low enough to condense water
