Domanda del libro di testo
Would you expect manganese(II) oxide, MnO, to react more readily with HCl(aq) or NaOH(aq)?
Ch.7 - Periodic Properties of the Elements
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970
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TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement146
- Ch.2 - Atoms, Molecules, and Ions200
- Ch.3 - Chemical Reactions and Reaction Stoichiometry176
- Ch.4 - Reactions in Aqueous Solution155
- Ch.5 - Thermochemistry126
- Ch.6 - Electronic Structure of Atoms131
- Ch.7 - Periodic Properties of the Elements126
- Ch.8 - Basic Concepts of Chemical Bonding123
- Ch.9 - Molecular Geometry and Bonding Theories143
- Ch.10 - Gases147
- Ch.11 - Liquids and Intermolecular Forces91
- Ch.12 - Solids and Modern Materials122
- Ch.13 - Properties of Solutions126
- Ch.14 - Chemical Kinetics174
- Ch.15 - Chemical Equilibrium101
- Ch.16 - Acid-Base Equilibria139
- Ch.17 - Additional Aspects of Aqueous Equilibria146
- Ch.18 - Chemistry of the Environment72
- Ch.19 - Chemical Thermodynamics129
- Ch.20 - Electrochemistry142
- Ch.21 - Nuclear Chemistry101
- Ch.22 - Chemistry of the Nonmetals68
- Ch.23 - Transition Metals and Coordination Chemistry66
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry10
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970Non è quello che usi tu?Cambia libro di testo
Capitolo 7, Problema 59
Predict whether each of the following oxides is ionic or molecular: SnO2, Al2O3, CO2, Li2O, Fe2O3, H2O.
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Identify the type of elements involved in each oxide. Metals typically form ionic oxides, while nonmetals form molecular oxides.
For SnO_2, Sn is a metal, so SnO_2 is likely ionic.
For Al_2O_3, Al is a metal, so Al_2O_3 is likely ionic.
For CO_2, C is a nonmetal, so CO_2 is likely molecular.
For Li_2O, Li is a metal, so Li_2O is likely ionic.
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Ionic vs. Molecular Compounds
Ionic compounds are formed when electrons are transferred from one atom to another, typically between metals and nonmetals, resulting in charged ions that attract each other. In contrast, molecular compounds consist of atoms that share electrons through covalent bonds, usually between nonmetals. Understanding the nature of the bonding helps in predicting whether a compound is ionic or molecular.
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02:11
Ionic Compounds Naming
Electronegativity
Electronegativity is a measure of an atom's ability to attract and hold onto electrons in a bond. When the difference in electronegativity between two atoms is large (generally greater than 1.7), the bond is likely ionic, while a smaller difference indicates a covalent bond. This concept is crucial for determining the type of bonding in oxides.
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02:10Electronegativity Trends
Metallic and Nonmetallic Oxides
Oxides can be classified based on the nature of the elements involved. Metallic oxides, formed from metals and oxygen, tend to be ionic, while nonmetallic oxides, formed from nonmetals and oxygen, are usually molecular. Recognizing the type of elements in the oxide helps in predicting its bonding characteristics.
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00:58Oxide Reactions
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True or false: Because elements that form cations are metals, and elements that form anions are nonmetals, elements that do not form ions are metalloids.
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