Ch.1 - Intro to General ChemistryWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: Water vapor is less dense than ice because 1) molecules in the gas phase are in constant motion. 2) molecules in the gas phase have more potential energy than in solids. 3) molecules in the gas phase

Problem

Water vapor is less dense than ice because 

1) molecules in the gas phase are in constant motion. 

2) molecules in the gas phase have more potential energy than in solids. 

3) molecules in the gas phase have more kinetic energy than in solids. 

4) gaseous molecules have less mass. 

5) molecules in the gas phase have more space between them than in solids.

Solution

The best answer is choice 5, since density relates to the compactness of a substance, the more compact 

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