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Ch.8 - Basic Concepts of Chemical Bonding
Brown - Chemistry: The Central Science 14th Edition
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Tutti i libri di testoBrown 14th EditionCh.8 - Basic Concepts of Chemical BondingProblema 46a,b
Capitolo 8, Problema 46a,b

In the following pairs of binary compounds, determine which one is a molecular substance and which one is an ionic substance. Use the appropriate naming convention (for ionic or molecular substances) to assign a name to each compound: (a) TiCl4 and CaF2 (b) ClF3 and VF3

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Step 1: To determine whether a compound is ionic or molecular, we need to look at the types of elements it contains. Ionic compounds are formed between metals and nonmetals, while molecular compounds are formed between nonmetals only.
Step 2: In the compound TiCl4, Ti is a metal (Titanium) and Cl is a nonmetal (Chlorine). Therefore, TiCl4 is an ionic compound. The name of this compound, following the naming convention for ionic compounds, is Titanium(IV) Chloride. The Roman numeral IV indicates the charge of the Titanium ion.
Step 3: In the compound CaF2, Ca is a metal (Calcium) and F is a nonmetal (Fluorine). Therefore, CaF2 is also an ionic compound. The name of this compound, following the naming convention for ionic compounds, is Calcium Fluoride.
Step 4: In this case, both compounds are ionic, not molecular. If we had a molecular compound, it would be named using prefixes to indicate the number of atoms of each element (for example, CO2 is carbon dioxide).
Step 5: To summarize, TiCl4 is an ionic compound named Titanium(IV) Chloride, and CaF2 is an ionic compound named Calcium Fluoride.

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Ionic vs. Molecular Compounds

Ionic compounds are formed from the electrostatic attraction between positively and negatively charged ions, typically between metals and nonmetals. In contrast, molecular compounds consist of molecules formed by covalent bonds, where atoms share electrons, usually between nonmetals. Understanding the distinction helps in identifying the nature of the compounds in the question.
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Ionic Compounds Naming

Naming Ionic Compounds

Ionic compounds are named by stating the name of the metal cation first, followed by the name of the nonmetal anion with its ending changed to '-ide.' For example, in CaF2, calcium (Ca) is the cation and fluoride (F) is the anion, resulting in the name calcium fluoride. This naming convention is essential for correctly identifying and naming the compounds.
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Ionic Compounds Naming

Naming Molecular Compounds

Molecular compounds are named using prefixes to indicate the number of atoms of each element present in the molecule, followed by the name of the first element and the second element with an '-ide' suffix. For instance, TiCl4 is named titanium tetrachloride, where 'tetra-' indicates four chlorine atoms. This systematic approach is crucial for accurately naming molecular substances.
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Naming Molecular Compounds
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