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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
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Others
Learners examine phase diagrams that show the phases of solid, liquid, and gas as well as the triple point and critical point.
- Subjects:
- Chemistry
- Keywords:
- Phase diagrams
- Resource Type:
- Others
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Others
In this screencast, learners examine the kinds of physical and chemical changes that occur in substances.
- Subjects:
- Chemistry
- Keywords:
- Chemical processes Chemical reactions Physical sciences
- Resource Type:
- Others
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Others
In this animated object, students examine what happens when electrons share molecules.
- Subjects:
- Chemistry
- Keywords:
- Chemical bonds
- Resource Type:
- Others
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Others
Students examine atomic structure and the octet rule.
- Subjects:
- Chemistry
- Keywords:
- Molecular structure Chemical structure
- Resource Type:
- Others
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Others
In this animated object, learners examine the chemistry behind table salt.
- Subjects:
- Chemistry
- Keywords:
- Chemical bonds Molecular structure Chemical structure
- Resource Type:
- Others
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Others
Learners examine a table of common polyatomic ions. Eight examples are provided for practice.
- Subjects:
- Chemistry
- Keywords:
- Chemical processes Chemical reactions
- Resource Type:
- Others
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Others
In this animated object, learners examine the formation of peptide bonds through dehydration synthesis.
- Subjects:
- Chemistry
- Keywords:
- Peptides -- Synthesis Amino acids
- Resource Type:
- Others
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Others
Learners use the coefficients in a balanced equation to develop the mole ratios of reactants and products involved in the reaction. Five interactive examples illustrate the method, and students test their knowledge by working four problems.
- Subjects:
- Chemistry
- Keywords:
- Chemical reactions Chemical equations
- Resource Type:
- Others
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Others
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