Textbook Question
Judge the following statements as true or false. If you believe a statement to be false, provide a corrected version. (g) The number 0.0033 has more significant figures than 0.033.
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Ch.1 - Introduction: Matter, Energy, and Measurement
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970
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Table of contents
- Ch.1 - Introduction: Matter, Energy, and Measurement111
- Ch.2 - Atoms, Molecules, and Ions166
- Ch.3 - Chemical Reactions and Reaction Stoichiometry138
- Ch.4 - Reactions in Aqueous Solution127
- Ch.5 - Thermochemistry104
- Ch.6 - Electronic Structure of Atoms109
- Ch.7 - Periodic Properties of the Elements107
- Ch.8 - Basic Concepts of Chemical Bonding102
- Ch.9 - Molecular Geometry and Bonding Theories120
- Ch.10 - Gases122
- Ch.11 - Liquids and Intermolecular Forces79
- Ch.12 - Solids and Modern Materials102
- Ch.13 - Properties of Solutions99
- Ch.14 - Chemical Kinetics153
- Ch.15 - Chemical Equilibrium83
- Ch.16 - Acid-Base Equilibria109
- Ch.17 - Additional Aspects of Aqueous Equilibria117
- Ch.18 - Chemistry of the Environment60
- Ch.19 - Chemical Thermodynamics109
- Ch.20 - Electrochemistry113
- Ch.21 - Nuclear Chemistry79
- Ch.22 - Chemistry of the Nonmetals52
- Ch.23 - Transition Metals and Coordination Chemistry57
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry7
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970Not the one you use?Change textbook
Chapter 1, Problem 97b
Judge the following statements as true or false. If you believe a statement to be false, provide a corrected version. (b) All mixtures contain at least one element and one compound.
Verified step by step guidance1
Identify the definition of a mixture: A mixture is a combination of two or more substances that are not chemically bonded.
Consider examples of mixtures: Mixtures can be homogeneous (uniform composition) or heterogeneous (non-uniform composition).
Evaluate the statement: The statement claims that all mixtures must contain at least one element and one compound.
Analyze counterexamples: A mixture can consist of only elements (e.g., a mixture of nitrogen and oxygen gases) or only compounds (e.g., a mixture of water and ethanol).
Conclude the evaluation: The statement is false. A corrected version could be: 'Mixtures can contain elements, compounds, or both, but not necessarily one of each.'
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Mixtures
A mixture is a combination of two or more substances that retain their individual properties. Mixtures can be homogeneous, where the components are evenly distributed, or heterogeneous, where the components are distinct. Importantly, mixtures do not have a fixed composition and can include elements, compounds, or both.
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. A mixture can contain only elements, only compounds, or a combination of both, meaning it is not necessary for all mixtures to include at least one of each.
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True/False Statements in Chemistry
In chemistry, evaluating statements as true or false often requires understanding definitions and properties of substances. A false statement can be corrected by providing accurate definitions or examples. In this case, the statement about mixtures is false because mixtures can consist solely of elements or solely of compounds.
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Related Practice
Textbook Question
Judge the following statements as true or false. If you believe a statement to be false, provide a corrected version. (a) Air and water are both elements.
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Textbook Question
Judge the following statements as true or false. If you believe a statement to be false, provide a corrected version. (d) Elements can exist in any of the three states of matter.
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Textbook Question
Judge the following statements as true or false. If you believe a statement to be false, provide a corrected version. (c) Compounds can be decomposed into two or more other substances; elements cannot.
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Textbook Question
Automobile batteries contain sulfuric acid, which is commonly referred to as “battery acid.” Calculate the number of grams of sulfuric acid in 1.00 gal of battery acid if the solution has a density of 1.28 g/mL and is 38.1% sulfuric acid by mass.
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