Domanda del libro di testo
Identify the group 3A element that best fits each of the following descriptions.
(a) Is the most abundant element of the group
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Ch.22 - The Main Group Elements
McMurry8th EditionChemistryISBN: 9781292336145
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TOC.tableOfContents
- Ch.1 - Chemical Tools: Experimentation & Measurement170
- Ch.2 - Atoms, Molecules & Ions160
- Ch.3 - Mass Relationships in Chemical Reactions169
- Ch.4 - Reactions in Aqueous Solution199
- Ch.5 - Periodicity & Electronic Structure of Atoms102
- Ch.6 - Ionic Compounds: Periodic Trends and Bonding Theory92
- Ch.7 - Covalent Bonding and Electron-Dot Structures61
- Ch.8 - Covalent Compounds: Bonding Theories and Molecular Structure59
- Ch.9 - Thermochemistry: Chemical Energy122
- Ch.10 - Gases: Their Properties & Behavior155
- Ch.11 - Liquids & Phase Changes54
- Ch.12 - Solids and Solid-State Materials73
- Ch.13 - Solutions & Their Properties120
- Ch.14 - Chemical Kinetics98
- Ch.15 - Chemical Equilibrium125
- Ch.16 - Aqueous Equilibria: Acids & Bases110
- Ch.17 - Applications of Aqueous Equilibria147
- Ch.18 - Thermodynamics: Entropy, Free Energy & Equilibrium86
- Ch.19 - Electrochemistry154
- Ch.20 - Nuclear Chemistry96
- Ch.21 - Transition Elements and Coordination Chemistry156
- Ch.22 - The Main Group Elements187
- Ch.23 - Organic and Biological Chemistry51
Capitolo 22, Problema 79
Assign charges to the oxygen-containing anions in the following compounds: (a) CsO₂ (b) BaO₂
Guida verificata passo dopo passo1
Identify the oxidation state of the metal in each compound. For cesium (Cs) in CsO₂, it is typically +1, and for barium (Ba) in BaO₂, it is typically +2.
Determine the overall charge of the compound. Since both CsO₂ and BaO₂ are neutral compounds, the sum of the oxidation states of all atoms must equal zero.
Assign the oxidation state to the oxygen atoms. In peroxides, such as BaO₂, each oxygen has an oxidation state of -1. In superoxides, such as CsO₂, each oxygen has an oxidation state of -1/2.
Calculate the total charge contributed by the oxygen atoms in each compound. Multiply the oxidation state of oxygen by the number of oxygen atoms present in the compound.
Ensure that the sum of the charges from the metal and the oxygen atoms equals zero to confirm the correct assignment of charges.
Concetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Oxidation States
Oxidation states are a way to keep track of electrons in chemical compounds. They indicate the degree of oxidation of an atom in a molecule, helping to determine the charge of ions. In compounds, the sum of the oxidation states must equal the overall charge of the compound, which is crucial for assigning charges to anions.
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Percorso guidato
02:42
Oxidation Numbers
Common Anions
Common anions are negatively charged ions that frequently occur in chemical compounds. For example, the peroxide ion (O₂²⁻) is a common anion that consists of two oxygen atoms bonded together, carrying a -2 charge. Recognizing these common anions is essential for determining the charges in compounds containing oxygen.
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Percorso guidato
02:53Common Ion Effect
Ionic Compounds
Ionic compounds are formed from the electrostatic attraction between positively charged cations and negatively charged anions. The charges of the ions must balance to create a neutral compound. Understanding the nature of ionic bonding is key to assigning the correct charges to the anions in compounds like CsO₂ and BaO₂.
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02:11Ionic Compounds Naming
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