Domanda del libro di testo
Complete the table by filling in the formula for the ionic compound formed by each pair of cations and anions, as shown for the first pair. Ion Na+ Ca2+ Fe2+ Al3+ O2- Na2O NO3- SO42- AsO43-
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Ch.2 - Atoms, Molecules, and Ions
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 2, Problema 65e
Predict whether each of the following compounds is molecular or ionic: (e) CsBr
Guida verificata passo dopo passo1
Identify the elements in the compound CsBr: Cesium (Cs) and Bromine (Br).
Determine the type of elements: Cesium (Cs) is a metal, and Bromine (Br) is a non-metal.
Recall that ionic compounds are typically formed between metals and non-metals.
Consider the position of Cesium in the periodic table: it is an alkali metal, which are known to form ionic compounds.
Conclude that CsBr is likely an ionic compound because it consists of a metal and a non-metal.
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Ionic Compounds
Ionic compounds are formed when atoms transfer electrons, resulting in the formation of charged ions. Typically, these compounds consist of a metal and a non-metal, where the metal loses electrons to become a positively charged cation, and the non-metal gains electrons to become a negatively charged anion. The electrostatic attraction between these oppositely charged ions leads to the formation of a crystalline lattice structure.
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02:11
Ionic Compounds Naming
Molecular Compounds
Molecular compounds are formed when two or more non-metal atoms share electrons through covalent bonds. These compounds consist of discrete molecules, where the atoms are held together by shared pairs of electrons. Unlike ionic compounds, molecular compounds generally have lower melting and boiling points and do not conduct electricity in solution.
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02:06Naming Molecular Compounds
Periodic Table Trends
The periodic table organizes elements based on their atomic number and properties, revealing trends in reactivity, electronegativity, and ionization energy. Elements on the left side, such as alkali metals, tend to lose electrons easily, forming cations, while elements on the right side, such as halogens, tend to gain electrons, forming anions. Understanding these trends helps predict whether a compound will be ionic or molecular based on the types of elements involved.
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00:38Periodic Trends
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