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Ch.2 - Atoms, Molecules & Ions
McMurry - Chemistry 8th Edition
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Capitolo 2, Problema 152a

Give systematic names for the following compounds: (a) Ca(ClO)2

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1
Identify the cation and anion in the compound. The cation is calcium (Ca) and the anion is hypochlorite (ClO^-).
Determine the charge of the cation. Calcium (Ca) is in group 2 of the periodic table and typically forms a +2 charge.
Determine the charge of the anion. Hypochlorite (ClO^-) has a -1 charge.
Combine the names of the cation and anion. Since the charges balance each other out (Ca^2+ and 2 ClO^-), the compound is named calcium hypochlorite.
Write the systematic name of the compound: calcium hypochlorite.

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Ionic Compounds

Ionic compounds are formed from the electrostatic attraction between positively charged cations and negatively charged anions. In the case of Ca(ClO)₂, calcium (Ca²⁺) acts as the cation, while hypochlorite (ClO⁻) is the anion. Understanding the nature of these ions is essential for naming the compound systematically.
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Ionic Compounds Naming

Systematic Naming Conventions

Systematic naming conventions, such as those outlined by the International Union of Pure and Applied Chemistry (IUPAC), provide a standardized method for naming chemical compounds. For ionic compounds, the cation is named first followed by the anion. In this case, the systematic name for Ca(ClO)₂ is calcium hypochlorite.
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Systematic Error

Polyatomic Ions

Polyatomic ions are ions composed of two or more atoms covalently bonded together, which carry a net charge. The hypochlorite ion (ClO⁻) is an example of a polyatomic ion. Recognizing polyatomic ions is crucial for correctly identifying and naming compounds that contain them, such as in the case of calcium hypochlorite.
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Polyatomic Ion Variations