Basic Chemistry Review Flashcards
IONIC BONDS
Electrons are GIVEN or TAKEN - making ions - Often refferred to as “stolen”
Covalant Bond
Electrons are shared - there are POLOR and NON POLAR Covalant Bonds
Difference between POLAR and NON POLAR covalent Bond
Polar is one molecule has the electron more often
Hydrogen Bonding
Partial charges for between Hyrdrogen containing molecules. such as the negative end of a water molecule and the positive side of another water molecule. These are weakest
Water Polarity effects
creates water tension or coheseasion, hence good as a solvent and why ice floats.
Carbon
BAckbone of all molecules
Carbohydrates
C, H, O
Carbohydrate MONOMER
Monosaccharide, such as glucose
Carbohydrate Polymer
Chains of monosaccharides - such as Starch, cellulose, or glycogen
Lipids
Elements are C, H, O, but have a glycerol and a fatty acid chain
They are HYDRO-PHOBIC -(non polar) and do not attract water
Protiens
C, H, O, N - look for the nitrogen
Monomer is an AMINO ACID
Polypeptide
Chain of Amino acids - shape of protein determines function
Nucleotide
C, H, O, N, P - look for the addition of PHOSPHORUS molecule.
Nucleic Acid Polymers
DNA and RNA -
+Define an Acid
Subsatnce donates H+ and therefore lowers pH
Adheasion
Attraction between water molecules and molecules of another substance