Domanda del libro di testo
Draw the electron-dot structure for CO, CO2, and CO32–, and predict which substance will have the strongest carbon–oxygen bond.
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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 22.3
Which of the following elements (X) will form a covalent hydride with the formula XH3 that is a gas at room temperature? (LO 22.4)
(a) Al (b) As (c) Ba (d) Se
Guida verificata passo dopo passo1
Identify the elements that can form covalent bonds with hydrogen to create a hydride.
Consider the periodic table position of each element: Al, As, Ba, and Se.
Recall that covalent hydrides are typically formed by nonmetals or metalloids.
Determine which of the given elements is likely to form a gaseous hydride at room temperature.
Recognize that As (arsenic) is a metalloid that can form a covalent hydride, AsH_3, which is a gas at room temperature.
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Concetti chiave
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Covalent Bonding
Covalent bonding occurs when two atoms share one or more pairs of electrons, typically between nonmetals. This type of bond results in the formation of molecules, such as hydrides, where the hydrogen atom bonds with another element. Understanding the nature of covalent bonds is essential for predicting the properties of compounds, including their state at room temperature.
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02:03
Chemical Bonds
Hydrides
Hydrides are compounds formed between hydrogen and another element. They can be classified into ionic and covalent hydrides, with covalent hydrides being formed by nonmetals. The physical state of hydrides at room temperature can vary; for instance, covalent hydrides of lighter nonmetals tend to be gases, while those of heavier elements may be liquids or solids.
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02:00Ionic Hydrides
Periodic Trends
Periodic trends refer to the predictable patterns in the properties of elements as you move across or down the periodic table. These trends influence factors such as electronegativity, atomic size, and the ability to form covalent bonds. Recognizing these trends helps in determining which elements are likely to form gaseous hydrides, as lighter elements in specific groups tend to form such compounds.
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00:38Periodic Trends
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