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Ch.2 - Atoms, Molecules, and Ions
Chapter 2, Problem 113c

Because many ions and compounds have very similar names, there is great potential for confusing them. Write the correct chemical formulas to distinguish between (c) aluminum nitride and aluminum nitrite

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Ionic Compounds

Ionic compounds are formed from the electrostatic attraction between positively charged cations and negatively charged anions. In the case of aluminum nitride and aluminum nitrite, aluminum acts as the cation, while nitride and nitrite are different anions. Understanding the nature of these compounds is essential for writing their correct chemical formulas.
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Nomenclature of Ions

The nomenclature of ions involves the systematic naming of ions based on their composition and charge. Aluminum nitride contains the nitride ion (N³⁻), while aluminum nitrite contains the nitrite ion (NO₂⁻). Recognizing the differences in these ions is crucial for distinguishing between the two compounds and writing their correct formulas.
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Chemical Formula Representation

Chemical formulas represent the composition of a compound, indicating the types and numbers of atoms present. For aluminum nitride, the formula is AlN, while for aluminum nitrite, it is Al(NO₂)₃. Understanding how to construct and interpret these formulas is vital for accurately distinguishing between similar compounds.
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