Which of the following statements is true?
1. The molecules of liquid water have less kinetic energy than those of water vapor.
2. The molecules of liquid water interact with one another, and those of water vapor do not.
3. The molecules of liquid water and water vapor have a different atomic composition.
4. The molecules of liquid water are bigger than the molecules of water vapor.
Answers: 2
Chemistry, 22.06.2019 12:30
Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.
Answers: 3
Which of the following statements is true?
1. The molecules of liquid water have less kinetic ener...
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