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Exploring Diversity of Matter by Its Chemical Co ...

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    Chemical Composition of Matter, What are Elements?, What are Compounds?, What are Mixtures
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  • What is meant by chemical composition?
    Chemical composition is the chemical components that make up a substance.
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  • What are listed in the periodic table?
    Elements
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  • What are the properties of a compound?
    The properties of a compound are usually different from the elements it is made up of.
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  • What are the properties of mixtures?
    A mixture has the properties of the substances it is made up of.
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  • How are the elements in a compound combined?
    The elements that make up a compound are always combined in a fixed proportion by mass.
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  • How are the elements and compounds in a mixture combined?
    The components of mixtures are not mixed in any fixed proportion.
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  • Can compounds be separated into their original elements?
    A compound cannot be broken down by physical methods; this is because a compound is made up of different elements that are chemically combined.
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  • Can mixtures be separated into their original elements?
    When a mixture is formed, no chemical reactions occur. Hence, a mixture can be separated easily by physical methods.
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  • What is a mixture?
    A mixture consists of two or more different substances that are mixed, but not chemically combined.
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  • What substances can make up a mixture?
    a. Elements b. Compounds c. Both elements and compounds
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  • What is a solute?
    A solute is the substance that dissolves in a solvent.
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  • What is a solvent?
    A solvent is the substance that dissolves the solute.
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  • What is a solution?
    A solution is the mixture of the solute and the solvent.
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  • What are suspensions?
    A suspension is a mixture in which insoluble substances are suspended in a liquid or gas.
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  • What is solubility?
    Solubility is the ability of a solute to dissolve in a solvent.
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  • What are the three factors that affect solubility?
    a. Nature of the solvent b. Nature of the solute c. Temperature
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