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Ch.1 - Introduction: Matter, Energy, and Measurement
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.

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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.
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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. 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

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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Textbook Question

Gold is alloyed (mixed) with other metals to increase its hardness in making jewelry. (b) The relative amount of gold in an alloy is commonly expressed in units of carats. Pure gold is 24 carat, and the percentage of gold in an alloy is given as a percentage of this value. For example, an alloy that is 50% gold is 12 carat. State the purity of the gold jewelry in carats.

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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. (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. (c) Compounds can be decomposed into two or more other substances; elements cannot.

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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. (f) A hypothesis is more weakly supported by experimental evidence than a theory.

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