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Chapter 1: Problem 116

Make molecular-level (microscopic) drawings for each of the following. a. Show the differences between a gaseous mixture that is a homogeneous mixture of two different compounds, and a gaseous mixture that is a homogeneous mixture of a compound and an element. b. Show the differences among a gaseous element, a liquid element, and a solid element.

Short Answer

Expert verified
In Part A, a homogeneous mixture of two different compounds, e.g., CO_2 and H_2O, is shown by scattering their respective molecules randomly and evenly throughout the drawing area. For a homogeneous mixture of a compound and an element, e.g., CO_2 and O_2, follow the same pattern of randomly and evenly distributed molecules. In Part B, for the gaseous state, O_2 molecules are sparse and randomly distributed. In the liquid state, O_2 molecules are closer together, but still somewhat randomly positioned. In the solid state, O_2 molecules are arranged in a fixed, regular pattern.

Step by step solution

01

Part A - Drawing Mixture of Two Different Compounds

1. First, draw examples of two different compounds, such as CO_2 (carbon dioxide) and H_2O (water) to represent compounds in the gas phase. 2. To create a homogeneous mixture look, scatter these two types of molecules randomly in the drawing area. 3. Ensure that the two compounds are represented with equal proportions and that the molecules are evenly distributed, representing a homogeneous mixture.
02

Part A - Drawing Mixture of A Compound and An Element

1. Choose a compound and an element as examples to represent this case, for instance, CO_2 (carbon dioxide) and O_2 (oxygen). 2. Scatter the CO_2 and O_2 molecules randomly in the drawing area to create the homogeneous mixture appearance. 3. Ensure that the compound and element are represented proportionally and that the molecules are evenly distributed, representing a homogeneous mixture.
03

Part B - Drawing Gaseous, Liquid, and Solid Elements

1. Choose an element for this part, for example, oxygen (O_2). 2. For the gaseous state, disperse the O_2 molecules randomly in the drawing area with a large distance between each molecule to represent the gas phase. 3. For the liquid state, draw O_2 molecules closer together, but still with some random positioning. This represents the increased density compared to the gaseous state, as well as the lack of fixed positions and nonuniform arrangement found in liquids. 4. For the solid state, arrange O_2 molecules in a fixed, regular pattern to represent the highly dense and ordered molecular arrangement found in solid oxygen.

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