Domanda del libro di testo
Which of the following three drawings represents a neutral Na atom? (a) (b) (c)
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Ch.2 - Atoms, Molecules & Ions
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 2, Problema 42
In the following drawings, red and blue spheres represent atoms of different elements. Match the molecular pictures (a)–(c) with the following descriptions: (i) a pure substance consisting of a compound (ii) a pure substance consisting of an element (iii) a mixture of element
Guida verificata passo dopo passo1
Identify the characteristics of each description: (i) a pure substance consisting of a compound means molecules made of two or more different types of atoms bonded together; (ii) a pure substance consisting of an element means only one type of atom is present; (iii) a mixture of elements means two or more different types of atoms are present but not bonded together.
Examine each molecular picture (a)–(c) to determine the types of atoms present and how they are arranged.
For each picture, check if the atoms are bonded together to form molecules or if they are separate, indicating a mixture.
Match each picture to the appropriate description based on your observations: bonded atoms indicate a compound, identical atoms indicate an element, and separate atoms indicate a mixture.
Review your matches to ensure they align with the definitions of compound, element, and mixture.
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Elements and Compounds
Elements are pure substances that consist of only one type of atom, while compounds are substances formed when two or more different types of atoms bond together in fixed proportions. Understanding the distinction between these two is crucial for identifying whether a molecular picture represents a pure substance or a mixture.
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Percorso guidato
02:35
Elemental Forms of Elements
Mixtures
A mixture is a combination of two or more substances where each retains its own properties and can be separated by physical means. In the context of the question, recognizing a mixture involves identifying that the molecular picture contains different types of atoms that are not chemically bonded.
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Percorso guidato
01:03Solubility and Mixtures
Chemical Representation
Chemical representations, such as drawings of atoms and molecules, convey information about the structure and composition of substances. Understanding how to interpret these representations is essential for matching them with descriptions of pure substances and mixtures, as it helps in visualizing the arrangement and types of atoms involved.
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03:31Chemical Properties
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