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Final Review Ch. 17
Final Review Ch. 17
25
Chemistry
11th Grade
05/26/2006

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Term
How does the surface tension of water compare with the surface tension of most other liquids?
Definition
It is higher.
Term
What is the shape of the water molecule?
Definition
bent
Term
Which atom in a water molecule has the greatest electronegativity?
Definition
the oxygen atom
Term
The bonds between the hydrogen and oxygen atoms in a water molecule are ___.
Definition
polar covalent bonds
Term
What is most directly responsible for water's high boiling point?
Definition
hydrogen-bonding
Term
What is the term for the dissolving medium in a solution?
Definition
solvent
Term
A solution is a mixture that has ____.
Definition
the same properties throughout.
Term
How many hydrogen bonds can be formed between one hydrogen atom in a water molecule and oxygen atoms of surrounding water molecules?
Definition
one
Term
How many nonbonding pairs of electrons are in a water molecule?
Definition
two
Term
The bonds between adjacent water molecules are called____.
Definition
hydrogen bonds
Term
Which of the following substances is the most soluble in water?
sodium chloride, methane, bromine, oxygen, carbon
Definition
sodium chloride
Term
What occurs in solvation?
Definition
solvent molecules surround solute ions
Term
Which of the following are weak electolytes in water?
a. ionic compounds that are slightly soluble
b. ionic compounds that are soluble
c. polar compounds that ionize
d. nonpolar compounds that do not ionize
Definition
a. ionic compounds that are slightly soluble
Term
An electric current is conducted by a ___.
Definition
salt solution
Term
A hydrated crystal that has a water vapor pressure higher than the water vapor pressure of air is__.
Definition
efflorescent
Term
A crystal that absorbs water vapor pressure from the air and then dissolves in the water is calle da __.
Definition
deliquescent
Term
What mixture type is characterized by the settling of particles?
Definition
suspension
Term
What type of mixture can be filtered to remove solute?
Definition
suspensions only
Term
The solute in a colloidal suspension is caled the___.
Definition
dispersed phase
Term
What is the tyndal effect?
Definition
Scattering of light through a suspension or colloid.
Term
An emulsion is which type of mixture? (suspension, colloid, solution)
Definition
colloid
Term
An emulsion is a colloidal dispersion of ___.
Definition
liquids in liquids
Term
Which of the following mixtures is NOT a colloid?
a. fog
b. milk
c. paint
d. sugar water
Definition
d. sugar water
Term
An emulsifying agent is typically characterized by having ______.
Definition
one polar end and one nonpolar end.
Term
True or False: Particles can be filtered from a suspension.
Definition
True
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