Domanda del libro di testo
Which solid in each pair has the higher melting point and why?
a. TiO2(s) or HOOH(s)
b. CCl4(s) or SiCl4(s)
c. Kr(s) or Xe(s)
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Ch.13 - Solids & Modern Materials
Tro5th EditionChemistry: A Molecular ApproachISBN: 9780134874371
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TOC.tableOfContents
- Ch.1 - Matter, Measurement & Problem Solving117
- Ch.2 - Atoms & Elements106
- Ch.3 - Molecules and Compounds128
- Ch.4 - Chemical Reactions and Chemical Quantities56
- Ch.5 - Introduction to Solutions and Aqueous Solutions84
- Ch.6 - Gases112
- Ch.7 - Thermochemistry96
- Ch.8 - The Quantum-Mechanical Model of the Atom60
- Ch.9 - Periodic Properties of the Elements86
- Ch.10 - Chemical Bonding I: The Lewis Model91
- Ch.11 - Chemical Bonding II: Molecular Shapes, VSEPR & MO Theory85
- Ch.12 - Liquids, Solids & Intermolecular Forces51
- Ch.13 - Solids & Modern Materials48
- Ch.14 - Solutions93
- Ch.15 - Chemical Kinetics114
- Ch.16 - Chemical Equilibrium68
- Ch.17 - Acids and Bases137
- Ch.18 - Aqueous Ionic Equilibrium154
- Ch.19 - Free Energy & Thermodynamics91
- Ch.20 - Electrochemistry105
- Ch.21 - Radioactivity & Nuclear Chemistry74
- Ch.22 - Organic Chemistry141
Tro5th EditionChemistry: A Molecular ApproachISBN: 9780134874371Non è quello che usi tu?Cambia libro di testo
Capitolo 13, Problema 40b
Identify each solid as molecular, ionic, or atomic. b. CO2(s)
Guida verificata passo dopo passo1
Identify the type of bonding present in the solid CO2.
Recognize that CO2 is composed of nonmetal atoms (carbon and oxygen).
Understand that CO2 forms covalent bonds between carbon and oxygen atoms.
Recall that molecular solids are composed of molecules held together by intermolecular forces.
Conclude that CO2(s) is a molecular solid because it consists of CO2 molecules held together by weak intermolecular forces.
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Molecular Solids
Molecular solids are composed of molecules held together by intermolecular forces such as van der Waals forces, dipole-dipole interactions, or hydrogen bonds. These solids typically have low melting and boiling points compared to ionic or atomic solids. An example is solid carbon dioxide (CO2), which forms when gas is cooled and solidifies into a molecular structure.
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Percorso guidato
04:13
Crystalline vs Amorphous Solids
Ionic Solids
Ionic solids consist of positively and negatively charged ions held together by strong electrostatic forces known as ionic bonds. These solids generally have high melting and boiling points due to the strength of the ionic interactions. Common examples include sodium chloride (NaCl) and magnesium oxide (MgO).
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00:34Ionic Solid Identification Example
Atomic Solids
Atomic solids are composed of atoms held together by covalent bonds, metallic bonds, or van der Waals forces. They can be further categorized into covalent network solids, like diamond, which have very high melting points, and metallic solids, which conduct electricity and have variable melting points. Atomic solids are characterized by their strong bonding and structural integrity.
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Percorso guidato
04:13Crystalline vs Amorphous Solids
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