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Chapter 1: Problem 7

Which characteristics of a solid, a liquid, and a gas are exhibited by each of the following substances? How would you classify each substance? a. a bowl of pudding b. a bucketful of sand

Short Answer

Expert verified
A bowl of pudding exhibits characteristics of both solids and liquids, and is classified as a thick liquid or a semi-solid substance (colloidal suspension). A bucketful of sand behaves more like a solid, with characteristics of both solids and liquids, and can be classified as a granular material or a solid.

Step by step solution

01

Understanding Properties of Solids, Liquids, and Gases

In order to classify the given substances, it is important to know the typical properties of solids, liquids, and gases. Solids have a fixed shape and a fixed volume, their particles are tightly packed, and they do not flow easily. Liquids have a fixed volume, but their shape depends on their container. Their particles have more freedom of movement compared to solids, and they can flow easily. Gases do not have a fixed shape or volume, and their particles move freely and spread out to occupy their container. Gases also flow and compress easily.
02

Analyzing a Bowl of Pudding

A bowl of pudding exhibits some characteristics of both solids and liquids. It has a semi-fixed shape, depending on the shape of the container it is in, and a fixed volume. The particles are closer together than in a gas. Pudding can flow, but not as easily as water or other common liquids. When classifying pudding, it is considered a thick liquid or a semi-solid substance, more commonly labeled as a "colloidal suspension." Meaning it has fine solid particles dispersed in a liquid medium.
03

Analyzing a Bucketful of Sand

A bucketful of sand does not have a fixed shape but takes the shape of the container, similar to liquids. However, it has a fixed volume like a solid, and its particles are tightly packed together. Sand does not flow easily but can be poured, which is a characteristic of both solids and liquids. When classifying sand, we can consider it a granular material or a collection of solid particles, but it behaves more like a solid in general.
04

Classification of the Substances

Based on their characteristics, we can classify the given substances as follows: a. A bowl of pudding is classified as a thick liquid or a semi-solid substance (colloidal suspension). b. A bucketful of sand can be classified as a granular material or a solid, as it has more characteristics of a solid compared to a liquid.

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