CHEMISTRY FINAL EXAM REVIEW WITH
100% VERIFIED ANSWERS
Gases that have critical temperatures above room temperature can be liquified by
___________ alone. - Answer-Pressure
T/f substances with weak intermolecular forces have high critical temperatures. -
Answer-False
When a liquid is at critical temperature it's ____________ pressure is the critical
pressure. - Answer-Vapor
Which of the following has the highest critical temperature?
H2O
NH3
N2
H2
Osmotosis - Answer-H2O
T/F. The lower the critical temperature of a substance the more likely it is to be a liquid
at room temperature - Answer-False
____________________ occurs when the vapor pressure of a liquid equals the
atmospheric pressure - Answer-Boiling point
What is the process in which vaporization and condensation are linked and used to
separate mixtures - Answer-Distillation
_______________Is the pressure required to liquefy a gas at it's critical temperature -
Answer-Critical pressure
_________________ is the amount of heat required to raise the temperature of 1 g of
the substance 1°C - Answer-Specific heat
_________________Is the use of a freezing probe for removing warts, tonsils, and
cataracts - Answer-Cryosurgery
T/F. Scientist have found that gases can liquefy by high pressures alone - Answer-False
T/F The heat of vaporization of Ether is much larger than the heat of vaporization of
water - Answer-False
, T/f. Molecules in liquid have a greater attractive forces the molecules in gases - Answer-
True
_______________ Is liquids ability to resist flowing - Answer-Viscosity
Because of water molecules strong attraction for the glass in a test tube which direction
does the meniscus curve? - Answer-Upward
What property causes the spherical shape of liquid droplets - Answer-Surface tension
T/f. Mercury does not exhibit capillary rise - Answer-True
______________ is the process where molecules break away from liquid because of
their high speeds - Answer-Evaporation
Is the amount of heat required to convert liquid at its boiling point to its vapor - Answer-
Heat of vaporization
T/f. The viscosity of liquids decreases with an increase in temperature - Answer-True
True or false — mercury will eventually evaporate - Answer-True
Which will evaporate quickest
Methanol
Water
Ether
Ethanol - Answer-Ether
A triclinic crystal structure is composed of different lengths and no _______ angles -
Answer-90 degree
Which of the following is a study sheet example of an allotrope?
Brass amalgam graphite silicon - Answer-Graphite
True or false heat added to a pure substance which is just beginning to melt increases
the temperature - Answer-False
A unit cell is the smallest unit of a___________that can be used as a building block -
Answer-Crystal
How many Na Ions are in one unit cell of salt crystals - Answer-4
Calcium carbonate can form two types of crystal lattice calcite and - Answer-Argonite
An angstrom is _______ - Answer-A length
100% VERIFIED ANSWERS
Gases that have critical temperatures above room temperature can be liquified by
___________ alone. - Answer-Pressure
T/f substances with weak intermolecular forces have high critical temperatures. -
Answer-False
When a liquid is at critical temperature it's ____________ pressure is the critical
pressure. - Answer-Vapor
Which of the following has the highest critical temperature?
H2O
NH3
N2
H2
Osmotosis - Answer-H2O
T/F. The lower the critical temperature of a substance the more likely it is to be a liquid
at room temperature - Answer-False
____________________ occurs when the vapor pressure of a liquid equals the
atmospheric pressure - Answer-Boiling point
What is the process in which vaporization and condensation are linked and used to
separate mixtures - Answer-Distillation
_______________Is the pressure required to liquefy a gas at it's critical temperature -
Answer-Critical pressure
_________________ is the amount of heat required to raise the temperature of 1 g of
the substance 1°C - Answer-Specific heat
_________________Is the use of a freezing probe for removing warts, tonsils, and
cataracts - Answer-Cryosurgery
T/F. Scientist have found that gases can liquefy by high pressures alone - Answer-False
T/F The heat of vaporization of Ether is much larger than the heat of vaporization of
water - Answer-False
, T/f. Molecules in liquid have a greater attractive forces the molecules in gases - Answer-
True
_______________ Is liquids ability to resist flowing - Answer-Viscosity
Because of water molecules strong attraction for the glass in a test tube which direction
does the meniscus curve? - Answer-Upward
What property causes the spherical shape of liquid droplets - Answer-Surface tension
T/f. Mercury does not exhibit capillary rise - Answer-True
______________ is the process where molecules break away from liquid because of
their high speeds - Answer-Evaporation
Is the amount of heat required to convert liquid at its boiling point to its vapor - Answer-
Heat of vaporization
T/f. The viscosity of liquids decreases with an increase in temperature - Answer-True
True or false — mercury will eventually evaporate - Answer-True
Which will evaporate quickest
Methanol
Water
Ether
Ethanol - Answer-Ether
A triclinic crystal structure is composed of different lengths and no _______ angles -
Answer-90 degree
Which of the following is a study sheet example of an allotrope?
Brass amalgam graphite silicon - Answer-Graphite
True or false heat added to a pure substance which is just beginning to melt increases
the temperature - Answer-False
A unit cell is the smallest unit of a___________that can be used as a building block -
Answer-Crystal
How many Na Ions are in one unit cell of salt crystals - Answer-4
Calcium carbonate can form two types of crystal lattice calcite and - Answer-Argonite
An angstrom is _______ - Answer-A length
