Chemistry: The Molecular Nature of Matter
7th Edition
ISBN: 9781118516461
Author: Neil D. Jespersen, Alison Hyslop
Publisher: WILEY
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Textbook Question
Chapter 20, Problem 4RQ
Conservation of Mass and Energy
What is the difference between the rest mass of a particle and the mass of a particle in motion? Why do we use the rest mass of the particle for most calculations?
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2. Two common air pollutants when analyzed yield the following information; Compound I shows
that 1 gram of sulfur combines with 1 gram of oxygen. Compound II shows that 1.5 grams of
oxygen combines with 1 gram of sulfur. This is consistent with the law of
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a) the analysis shows that sulfur and oxygen can combine in more than one way.
b) the analysis shows that the combination of sulfur and oxygen is very close to 1 in both cases.
c) the analysis shows that a small whole number (2) could be used to make a ratio of 2:3 for the
oxygen mass in compound I compared to compound II.
According to the conservation of mass and energy law, which of the following is TRUE of mass and energy?
A) Mass is neither created nor destroyed.
B) Energy is neither created nor destroyed.
C) Mass may be destroyed but not energy.
D) Energy may be destroyed but not matter.
E) The total mass and energy is constant.
Which of the following statements is INCORRECT?
a.
Energy is neither created nor destroyed in ordinary (non-nuclear) chemical reactions.
b.
Kinetic energy is the energy associated with motion.
c.
Exothermic processes transfer heat from the surroundings into the system.
d.
Increasing the thermal energy of a gas increases the motion of its atoms.
e.
All of the statements above are correct
Chapter 20 Solutions
Chemistry: The Molecular Nature of Matter
Ch. 20 - Prob. 1PECh. 20 - Prob. 2PECh. 20 - Prob. 3PECh. 20 - Prob. 4PECh. 20 - Prob. 5PECh. 20 - Prob. 6PECh. 20 - Prob. 7PECh. 20 - Prob. 8PECh. 20 - Prob. 9PECh. 20 - Prob. 10PE
Ch. 20 - Prob. 11PECh. 20 - Prob. 12PECh. 20 - Prob. 13PECh. 20 - Prob. 14PECh. 20 - Prob. 15PECh. 20 - Prob. 1RQCh. 20 - Conservation of Mass and Energy
20.2 How can we...Ch. 20 - Conservation of Mass and Energy
20.3 State the...Ch. 20 - Conservation of Mass and Energy What is the...Ch. 20 - Prob. 5RQCh. 20 - Prob. 6RQCh. 20 - Prob. 7RQCh. 20 - Prob. 8RQCh. 20 - Prob. 9RQCh. 20 - Prob. 10RQCh. 20 - Prob. 11RQCh. 20 - Prob. 12RQCh. 20 - Prob. 13RQCh. 20 - Prob. 14RQCh. 20 - Prob. 15RQCh. 20 - Prob. 16RQCh. 20 - Prob. 17RQCh. 20 - Prob. 18RQCh. 20 - Prob. 19RQCh. 20 - Band of Stability
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