Study Biology Test 1 Flash Cards

 
Pile Management Card
Biology Test 1

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The proton binds to the other water molecule, making that molecule a __________.
hydronium ion (H30) small three
The water molecule that lost a proton is now a _________, with a charge of 1-.
hydroxide ion
A single proton with a charge of 1+.
hydrogen ion
________ is when substances that are nonionic and nonpolar, cannot form hydrogen bons, actually seem to repel water.
hydrophobic
_______ is a stable suspension of fine particles in a liquid.
colloid (suspended in aqueous solution)
Any substance that has an affinity for water is said to be _________.
hydrophilic (not always dissolving)
The sphere of water molecules around each dissolved ion is called a _________.
hydration shell
An __________ is one in which water is the solvent.
aqueous solution
The substance that is dissolved is the ______.
solute
The dissolving agent of a solution is the _____.
solvent
A liquid that is a completely homogeneous mixture of two or more substances is called a _______.
solution
The ability of ice to float because of the ______ of water as it solidifies.
expansion
_______ is the quantity of heat a liquid must absorb for 1 g of water to be converted from liquid to gas.
heat of vaporitzation
Heat must be ________ when hydrogen bonds form.
released
Heat must be _______ in order to break hydrogen bonds.
absorbed
The ________ of a substance is defined as the amount of heat that must be absorbed or lost for 1 g of that substance to change its temperature by 1 degree Celsius.
specific heat
A ________ is the amount of heat it takes to raise the temperature of 1 g of water by 1 degree Celsius.
calorie
What are the four emergent properties of water?
cohesive behavior, moderate temp., expansion upon freezing, and versatility as a solvent
Related to cohesion is ________, a measure of how difficult it is to stretch or break the surface of a liquid.
surface tension
An unequal distribution of electrons makes water a ________.
polar molecule
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