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Understanding Density: Exploring Mass and Volume Relationships

Discover the concept of density and how it determines whether objects float or sink in water. Learn about the factors that influence density, such as mass and volume. Explore the relationship between density and temperature and how it affects the properties of substances. Solve problems and reinforce your understanding with interactive tutorials.

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Understanding Density: Exploring Mass and Volume Relationships

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  1. Density 3.4

  2. Density 3.4 • If you think that these lily pads float because they are lightweight, you are only partially correct. The ratio of the mass of an object to its volume can be used to determine whether an object floats or sinks in water.

  3. 3.4 Determining Density • Determining Density • What determines the density of a substance?

  4. 3.4 Determining Density • Density is the ratio of the mass of an object to its volume.

  5. 3.4 Determining Density • Each of these 10-g samples has a different volume because the densities vary.

  6. 3.4 Determining Density • Density is an intensive property that depends only on the composition of a substance, not on the size of the sample.

  7. 3.4 Density and Temperature • Density and Temperature • How does a change in temperature affect density?

  8. 3.4 Density and Temperature • Experiments show that the volume of most substances increases as the temperature increases. Meanwhile, the mass remains the same. Thus, the density must change. • The density of a substance generally decreases as its temperature increases.

  9. 3.10

  10. 3.10

  11. for Sample Problem 3.11 Problem Solving 3.48 Solve Problem 48 with the help of an interactive guided tutorial.

  12. Concept map • Concept Map 3 • Solve the Concept Map with the help of an interactive guided tutorial.

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