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  • Others 
    Vapor Pressure

    Vapor Pressure

    Vapor pressure is the pressure exerted by molecules in the gas phase in equilibrium with a liquid or a solid. Two examples are used to illustrate vapor pressure: the drying of clothes and the evaporation of ice.

    Subjects:
    Chemistry
    Keywords:
    Vapor pressure
    Resource Type:
    Others
     
  • Others 
    The Solid State

    The Solid State

    In this well-illustrated object, learners examine the structures and properties of the four types of solids: molecular, metallic, ionic, and covalent network. Five interactive questions are provided.

    Subjects:
    Chemistry
    Keywords:
    Solid state chemistry
    Resource Type:
    Others
     
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    The Mole and Avogadro's Number

    The Mole and Avogadro's Number

    Learners examine how chemists use moles to "count" atoms by weight. Examples are given.

    Subjects:
    Chemistry
    Keywords:
    Mole (Chemistry) Chemical elements Avogadro's law
    Resource Type:
    Others
     
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    The Limiting Reagent in Chemical Reactions

    The Limiting Reagent in Chemical Reactions

    In this interactive object, learners determine the limiting reagent and the excess reagent in chemical reactions. Learners test their knowledge by solving three problems.

    Subjects:
    Chemistry
    Keywords:
    Chemical processes Chemical reactions
    Resource Type:
    Others
     
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    The Kinetic Theory of Gases

    The Kinetic Theory of Gases

    In this animated activity, learners examine what gases are composed of and how their particles interact. They also consider several assumptions that form the basis for the Kinetic Theory of Gases.

    Subjects:
    Chemistry
    Keywords:
    Kinetic theory of gases Gas dynamics
    Resource Type:
    Others
     
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    The Effect of Temperature on the Vapor Pressure of a Liquid

    The Effect of Temperature on the Vapor Pressure of a Liquid

    Learners examine how vapor pressure is calculated. The vapor pressure of a liquid increases with increasing temperature. If the heat of vaporization and the vapor pressure at one temperature are known, the vapor pressure at a second temperature can be calculated.

    Subjects:
    Chemistry
    Keywords:
    Vapor pressure
    Resource Type:
    Others
     
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    The Combined Gas Law

    The Combined Gas Law

    Learners combine Boyle's Law and Charles's Law to solve for the pressure, volume, and temperature of a gas sample under two sets of conditions.

    Subjects:
    Chemistry
    Keywords:
    Boyle's law Charles' law Gas laws (Physical chemistry)
    Resource Type:
    Others
     
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    Solubility of Ionic Compounds in Water

    Solubility of Ionic Compounds in Water

    Learners view movie clips to determine the solubility of two ionic compounds. They also examine a solubility chart and predict the solubility of compounds.

    Subjects:
    Chemistry
    Keywords:
    Chemical reactions Solubility
    Resource Type:
    Others
     
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    Precipitation Reactions

    Precipitation Reactions

    In this interactive and animated object, learners use solubility rules to predict when an insoluble ionic compound will precipitate in a double replacement reaction. Step-by-step examples are given.

    Subjects:
    Chemistry
    Keywords:
    Chemical reactions Solution (Chemistry)
    Resource Type:
    Others
     
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    Phase Transitions

    Phase Transitions

    Learners examine how melting, vaporization, and sublimation require energy input while freezing and condensation release energy.

    Subjects:
    Chemistry
    Keywords:
    Thermodynamics Phase transformations (Statistical physics)
    Resource Type:
    Others