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28 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Isotopes
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Same number of protons but different amount of neutrons.
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Atomic number
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Number of protons
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Atomic mass
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Average weight of naturally occurring isotopes
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Ions
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Atoms that give up or gain electrons in valence shell
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Free radicals
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Electrically charged atoms with an unpaired electron in valence shell.
Not stable, becomes stable by giving up or taking an electron |
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Ionic vs covalent bonds
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Ionic bonds for when atoms looses or gains valence electrons
Covalent = valence electron sharing |
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Cations vs anions
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Cations have positive charge and are donors
Anion are negatively charged and are acceptor. |
Donors vs acceptors
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Strongest chemical bond in body?
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Covalent
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Nonpolar vs polar covalent bonding
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Nonpolar shares electrons equally
Polar doesn't H2O |
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Describe H bonding
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Hydrogen bonding with NOF(S)
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Chem reacrions occur when...
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Electrons in valence shells are shared or transferred (exchanged) ; new bonds form /break
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Kinetic energy
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Energy of matter in motion
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Potential energy
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Energy stored by matter
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Activation energy
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Energy required to break Chemical bond in Reactants so reaction can start
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What contributes to collision rate
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Concentration, temperature, presence of catalyst
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Role of catalyst
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Lowers activation energy
*Neither consumed nor produced |
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Synthesis reaction
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A + B = AB
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Decomposition reaction
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AB = A + B
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Exchange reaction
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AB + CD = AC + BD
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Reversible reaction
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AC = A + C
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Colloid vs suspensions vs solutions
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Solutions are chemically bond together
Colloid have large Particles that scatters light, cloudy Suspensions separates eventually |
Milk, blood, coke
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Acids vs basis
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Acids have high concentration of hydrogen ions (protons) but low concentrations of hydronium
Bases have Low concentrations but high concentrations of hydronium |
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Buffers
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Converts strong acids/ basis to weak
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Isomer
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Same chemical formula but different structure (bonds)
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Why are lipids hydrophobic?
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Because they contain few polarcovalent bonds
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Lipoprotein
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Lipids + Proteins + cholesterol
Used to transport fats throughout the body |
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Most plentiful lipid
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Triglycerides
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Why is amphiphilic both water and lipid soluble
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Because it contains parts that are both polar and nonpolar
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