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CHM 111 ALEKS Questions and Answers 100% Solved
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Exam of 2 pages for the course ALEKS at ALEKS (CHM 111 ALEKS)
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CHM 111 ALEKSvapor pressure - answer how quickly and completely a liquid evaporates. Liquids with a
high vapor pressure evaporate quickly, and when in a closed container produce a
higher partial pressure of vapor at equilibrium.
surface tension - answer resistance to penetration of a surface, or any increase in
surface area. Fluids that form more compact (rounder) drops on surfaces, or which
more strongly resist penetration by small objects, have a high surface tension.
Viscosity - answer resistance to flow. Liquids that flow slowly, and are hard to stir or
pour, have a high viscosity. Liquids that flow easily and quickly have a low viscosity. For
example, honey has a high viscosity and water has a low viscosity. Viscosity also
controls how fast objects move through liquids: the higher the viscosity, the harder it is
for objects to push through the liquid.
Coulomb's law - answer the potential energy between two ions is directly proportional to
the product of their charges and inversely proportional to the product of their charges
and inversely proportional to the distance between them
acid ionization constant (Ka) - answer the equilibrium constant for the acid ionization
Dalton's law of partial pressures - answer the total pressure of a mixture of gases is just
the sum of the pressures that each gas would exert it were present alone
Dalton - answerfirst there to relate chemical changes to events at the atomic level
tiny indivisible and indestructible particle with no internal structure
J.J. Thompson - answerdiscovered the electron
plum pudding model
Rutherford - answerthe nucleus
dense nucleus, electrons move around it somehow
Bohr - answerelectrons can gain/lose only certain quants of energy
electron shells
four characteristics of light - answerfrequency, amplitude, wavelength, speed
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