Energy Matter, Organisation Flashcards
Properties of H2O- polarity
-unequal sharing of e
-Partial positive partial negative
Properties of H2O- universal solvent
Ability to dissolve many polar substances
Properties of H2O- density of water as a solid
Water is less dense as a solid, (important to things that live in cold environments)
Properties of H2O- water as a hydrogen bond
Explains the properties of adhesion, cohesion, and surface tension
Properties of H2O- high specific heat
Amount of heat needed to change the temp of water by 1 degree C
Properties of H2O- high heat of vaporization
Requires a lot of heat energy to change liquid to gas
Properties of H2O- high heat of fusion
Requires a lot of heat energy to change solid water to liquid
In general, the presence of atoms of what elements make a molecule polar
Oxygen and nitrogen
What property do atoms of polar molecules have that help make the molecules they are in
Highly electronegative
Love electrons
Is water polar or non polar
Polar 
What is another term for a polar
Hydrophilic
Dissolves in water
What is another term for nonpolar molecule
Hydrophobic
Hates water
What does acidic hydrogens mean?
The donation of hydrogens
Carbohydrates
CHO
Sugar
Main source of energy for cells
Dehydration synthesis
Remove H2O to Jain monomers