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22 Cards in this Set
- Front
- Back
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The strongest bonds in organisms are |
Covalent bonds |
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DNA is held in its functional form by ___ bonds |
weak |
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What are Van Der Waals Interactions? |
Attractions between molecules that are so close because of hydrogen bonds |
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Starting Molecules of a chemical reaction are ____ |
Reactants |
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The final molecules of chemical reaction are the ____ |
Product |
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Molecular shape determines how |
Bio molecules interact and respond to each other |
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____ ____ iS A MEASURE OF how hard is is to break the surface of a liquid |
Surface Tension |
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Cohesion is |
Hydrogen bonds holding water molecules together |
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An attraction between different substances is called |
Adhesion |
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A high cohesion in a liquid causes |
Surface tension |
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What is surface tension? |
A measure of how hard it is to break the surface of a liquid |
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Why is waters surface tension unusually high? |
Because of hydrogen bonds |
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The ________ of a substance is the amount ofheat that must be absorbed or lost for ___ of thatsubstance to change its temperature by ____ |
Specific heat, 1g, 1 degree C |
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Waters high specific heat is due to |
hydrogen bonding |
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Heat of vaporization is |
the heat a liquid must absorb for 1 g to be converted to gas
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Water reaches its greatest density at______ |
4 degrees Celsius |
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What would happen if ice DID sink? |
all bodies of water would eventuallyfreeze solid, |
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A _____ is a liquid that is a completely homogeneousmixture of substances |
Solution |
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A ____ is the dissolving agent of a solution |
Solvent |
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The solute is the substance that is |
Dissolved |
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An aqueous solution is one in which |
water is the solvent
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When an________ isdissolved in water, each ion issurrounded by a sphere of watermolecules called a ______________ |
ionic compound, hydration shell
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