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8 signs of life
growth
reproduction
carbon based
order
adaptation/evolution
response to environment
homeostasis
energy proccessing
Most common elements
carbon, oxygen, hydrogen, nitrogen
Unequal number of protons and neutrons
isotope
2 atoms are unequal in attraction for valance electrons
more electronegative atom takes electron from the other atom
Ionic Bond
sharing electrons
completes outermost shell of all atoms present
Covalant bonds
1 atom is more electronegatively charged
polar covalant bonds
forms between 2 polar compounds
forms between partially positive hydrogen and negative polar atom of other compound
hydrogen bond
shape determines....
function
liquid medium
particles dissolve in this
solvent
particle
solid
dissolves
solute
solute + solvent
solution
water is the solvent
aqueous solution
water is...
polar
polarity of water causes
cohesion
adhesion
surface tension
caused by hydrogen
sticks in columb shape
hydrogen bonds with other water molecules
cohesion
hydrogen bonds with other surfaces
adhesion
how easy it is to stretch/break surface
surface tension
stabalizes due to high specific heat
this allows life to exsist
moderation of temperature
amount of heat needed to change temperature of 1g of a substance 1degree celsius
specific heat
solvent of life
water
water loving
hydrophillic
water hating
hydrophobic
cellulose is
both hydrophillic and hydrophobic
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Author
SjmsLove
ID
170613
Card Set
Biology
Description
Chemicals and Water
Updated
2012-09-13T05:09:20Z
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