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Biology 12 > Bonding > Flashcards

Bonding Flashcards

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1
Q

Hydrogen Bonds

A

Bond formed between two polar molecules

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2
Q

Polar Bonds

A

Covalent bonds where electrons are shared unequally

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3
Q

A solution is made of a ___ and a ___

A

solvent and a solute

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4
Q

Solvency

A

The ability to dissolve matter

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5
Q

Hydrophilic

A

Loves water - dissolves easily in water

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6
Q

Hydrophobic

A

Fear of water - does not dissolve easily in water

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7
Q

Universal Solvent

A

Water is the universal solvent for polar molecules

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8
Q

Adhesion

A

Attraction between a substance and another substance

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9
Q

Cohesion

A

Attraction between a substance and itself

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10
Q

Surface Tension

A

Elastic surface film due to attraction of molecules at the surface and those below

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11
Q

Heat Capacity

A

The amount of heat required to raise 1g of a substance by 1*C

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12
Q

Calorie

A

The amount of heat required to raise 1g of water by 1*C

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13
Q

Why is water an effective coolant?

A

Water has a high specific heat capacity, thus can absorb heat without changing temperature due to hydrogen bonds.

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14
Q

Polymers

A

Series of monomers bonded together

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15
Q

Monomer

A

Subunits of macromolecules

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16
Q

Polymerization

A

The bonding of monomers into polymers through dehydration synthesis

17
Q

Dehydration Synthesis

A

The reaction that bonds monomers together. Involves the removal of a water molecule.

18
Q

Hydrolysis

A

The splitting of a polymer/breaking of a bond by the addition of a water molecule

19
Q

Digestion

A

Hydrolysis is used to break down biomolecules into smaller molecules to be absorbed into the cells

20
Q

Acids

A

Release H+ (H3O) when dissociated in water. Have a pH below 7.

21
Q

Bases

A

Release OH- when dissociated in water. pH above 7.

22
Q

Buffers

A

Chemicals that can accept excess H+ or OH- in a solution to keep the solution at a constant pH (to a limit)

Biology 12 (7 decks)

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