Domanda del libro di testo
Classify each of the following as a pure substance, a solution, or a heterogeneous mixture: b. a cup of coffee
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Ch.1 - Introduction: Matter, Energy, and Measurement
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
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Brown 15th EditionCh.1 - Introduction: Matter, Energy, and MeasurementProblema 69c
Brown 15th EditionCh.1 - Introduction: Matter, Energy, and MeasurementProblema 69cCapitolo 1, Problema 69c
Classify each of the following as a pure substance, a solution, or a heterogeneous mixture: c. a wood plank
Guida verificata passo dopo passo1
Understand the definitions: A pure substance has a uniform and definite composition, a solution is a homogeneous mixture with uniform composition throughout, and a heterogeneous mixture has a non-uniform composition.
Consider the composition of a wood plank: Wood is composed of various components such as cellulose, lignin, water, and other organic compounds.
Evaluate the uniformity: In a wood plank, these components are not uniformly distributed throughout the material.
Determine the classification: Since the components of a wood plank are not uniformly distributed, it does not fit the definition of a pure substance or a solution.
Conclude that a wood plank is a heterogeneous mixture because it has a non-uniform composition with distinct regions of different materials.
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Pure Substance
A pure substance consists of a single type of particle and has a uniform and definite composition. It can be an element, like oxygen, or a compound, like water. Pure substances have consistent properties throughout, such as boiling and melting points, which distinguish them from mixtures.
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Percorso guidato
02:58
Classification of Matter Example
Solution
A solution is a homogeneous mixture where one substance (the solute) is dissolved in another (the solvent). Solutions have a uniform composition and properties throughout, meaning that any sample taken from the solution will have the same ratio of solute to solvent. Common examples include saltwater and sugar dissolved in tea.
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01:39Solution Components
Heterogeneous Mixture
A heterogeneous mixture consists of two or more substances that remain physically separate and can be distinguished from one another. The components can vary in composition and properties throughout the mixture, such as in a salad or a wood plank, where different materials can be identified and separated.
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01:03Solubility and Mixtures
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