ce floats on water. For most other substances, however, the solid sinks in the liquid. Classify each of these statements based on whether they describe water or most other substances. Water Most other substances

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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Educational Text Transcription:**

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**Concept: Density and Phase Changes**

Ice floats on water. For most other substances, however, the solid sinks in the liquid. Classify each of these statements based on whether they describe water or most other substances.

**Categories:**

- **Water:**
  - The solid is less dense than the liquid.
  - The molecules are closest in the liquid phase.
  - In a phase diagram, the solid–liquid coexistence line has a negative slope.

- **Most Other Substances:**
  - The solid is more dense than the liquid.
  - The molecules are closest in the solid phase.
  - High pressure will cause the liquid to become solid.
  - In a phase diagram, the solid–liquid coexistence line has a positive slope.
  - High pressure will cause the solid to become liquid.

**Answer Bank:**

- The molecules are closest in the liquid phase.
- High pressure will cause the liquid to become solid.
- The molecules are closest in the solid phase.
- The solid is less dense than the liquid.
- The solid is more dense than the liquid.
- In a phase diagram, the solid–liquid coexistence line has a negative slope.
- In a phase diagram, the solid–liquid coexistence line has a positive slope.
- High pressure will cause the solid to become liquid.

**Explanation of Diagram:**

This educational exercise involves categorizing statements about the physical properties of water and most other substances. Students are invited to correctly classify information into the two columns based on knowledge of density, molecular structure, and phase diagrams. The correct classifications will help students understand the unique behavior of water compared to other materials.
Transcribed Image Text:**Educational Text Transcription:** --- **Concept: Density and Phase Changes** Ice floats on water. For most other substances, however, the solid sinks in the liquid. Classify each of these statements based on whether they describe water or most other substances. **Categories:** - **Water:** - The solid is less dense than the liquid. - The molecules are closest in the liquid phase. - In a phase diagram, the solid–liquid coexistence line has a negative slope. - **Most Other Substances:** - The solid is more dense than the liquid. - The molecules are closest in the solid phase. - High pressure will cause the liquid to become solid. - In a phase diagram, the solid–liquid coexistence line has a positive slope. - High pressure will cause the solid to become liquid. **Answer Bank:** - The molecules are closest in the liquid phase. - High pressure will cause the liquid to become solid. - The molecules are closest in the solid phase. - The solid is less dense than the liquid. - The solid is more dense than the liquid. - In a phase diagram, the solid–liquid coexistence line has a negative slope. - In a phase diagram, the solid–liquid coexistence line has a positive slope. - High pressure will cause the solid to become liquid. **Explanation of Diagram:** This educational exercise involves categorizing statements about the physical properties of water and most other substances. Students are invited to correctly classify information into the two columns based on knowledge of density, molecular structure, and phase diagrams. The correct classifications will help students understand the unique behavior of water compared to other materials.
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