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WATER STRUCTURE AND PROPERTIES, ., . - Coggle Diagram
WATER STRUCTURE AND PROPERTIES
Glossary
non polar molecules
electrons are shared or canceled equally between atoms of a diatomic molecule
physical properties of water
universal solven
only compound that can be in the 3 physical states
onducts heat more easily than any liquid except mercury
high surface tension
neutral pH
polar molecules
electronegativity difference between the bonded atom
hydrogen bonds
electrostatic attraction between a proton in one molecule and an electronegative atom in the othe
insoluble
Impossible to solve
intermolecular forces
forces which mediate interaction between molecule
covalent bond
electrons shared between 2 atoms
soluble
it can be dissolved
water molecule
2 hydrogen atoms
1 oxygen atom
Latent heat of vaporization
to cool the body through sweat.
Evaporation requires an input of energy.
This energy comes from the surface of the skin when it is hot, so when the sweat evaporates the skin is cooled.
Because water has a high specific heat capacity, it absorbs a lot of thermal energy before it evaporates.
hydrophobic and hydrophilic molecules
hydrophilic
molecules that attract water
glucose, sodium and chloride Ions
polar
hydrophobic
molecules that repel water
alkanes, oils, fats,
non polar
properties
thermal properties
properties of a material which is related to its conductivity of heat
extensive hydrogen bonding between water molecules – the H- bonds need to be broken before a change in state can occur and this requires the absorption of energy (heat)
Sweating
adhesion
formed between water and other molecules,
causing water to stick to them
hydrogen bonds between water and other polar molecules
useful in leaves, where water adheres to cellulose molecules in cell walls
solvent
Water forms hydrogen bonds with polar molecules
Its partially negative oxygen pole is attracted to positive ions and its partially positive hydrogen pole is attracted to negatively charged ions so that both can dissolve.
in our organisms solvent nutrients get to our bodys trough water
cohesion
Binding together of two molecules of the same type
hydrogen bonds
useful for water transport in plants
water and methane
Water has a significantly higher melting and boiling point
Water has a higher specific heat capacity
water is polar meanwhile methane is non polar
Water can form intermolecular hydrogen bonds
Methane can only form weak dispersion forces
between its molecules
Water has a higher heat of vaporisation
Water as a higher heat of fusion
polarity of water
covalent bonds between an oxigen atom and 2 hydrogen atoms
molecules are bent rather linear, the two hydrogen atoms are on the same side of the molecule and form one pole and the oxygen forms the opposite pole
has an unequal sharing of electrons
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