Chapter 4 - Chemistry in Focus 3rd edition Tro Chapter 4...

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Chemistry in Focus 3rd edition Tro Chapter 4 Molecules, Compounds, and Chemical Reactions
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Molecules cause the behavior of matter.
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Chemical Compounds and Chemical Formulas H 2 O 2 hydrogen atoms bonded to 1 oxygen atom (though this image is likely a mixture of water with other substances)
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Chemical Formulas Indicates the elements present in a compound and the relative number of atoms of each If we change the subscripts in a chemical formula, we no longer represent the same compound. – H 2 O is water. – H 2 O 2 is hydrogen peroxide.
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Ionic and Molecular Compounds Elements with electron configurations form compounds with other elements to gain . This can be accomplished by the of electrons (ionic compounds) or by the of electrons (molecular compounds).
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Ionic Compounds Contain a metal and one or more nonmetals Metals and nonmetals are a good chemical match. The result is an ionic bond. represent the ratio of elements in the crystal lattice of the compound.
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Sodium chloride Ionic compounds dissociate in water to form electrolyte solutions.
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Chapter 4 - Chemistry in Focus 3rd edition Tro Chapter 4...

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