Chemistry: An Atoms First Approach
2nd Edition
ISBN: 9781305079243
Author: Steven S. Zumdahl, Susan A. Zumdahl
Publisher: Cengage Learning
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Chapter 1, Problem 58AE
The early alchemists used to do an experiment in which water was boiled for several days in a sealed glass container. Eventually, some solid residue would appear in the bottom of the flask, which was interpreted to mean that some of the water in the flask had been converted into “earth.” When Lavoisier repeated this experiment, he found that the water weighed the same before and after heating and the mass of the flask plus the solid residue equaled the original mass of the flask. Were the alchemists correct? Explain what happened. (This experiment is described in the article by A. F. Scott in Scientific American, January 1984.)
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Chapter 1 Solutions
Chemistry: An Atoms First Approach
Ch. 1 - Define and e xplain the differences between the...Ch. 1 - Is the scientific method suitable for solving...Ch. 1 - Use Daltons atomic theory to account for each of...Ch. 1 - What evidence led to the conclusion that cathode...Ch. 1 - What discoveries were made by J. J. Thomson, Henri...Ch. 1 - Consider Ernest Rutherfords -particle bombardment...Ch. 1 - Do the proton and the neutron have exactly the...Ch. 1 - What is the distinction between atomic number and...Ch. 1 - Paracelsus, a sixteenth-century alchemist and...Ch. 1 - What is wrong with the following statement? The...
Ch. 1 - Which of the following is true about an individual...Ch. 1 - These questions concern the work of J. J. Thomson....Ch. 1 - Which of the following explain how an ion is...Ch. 1 - You have a chemical in a sealed glass container...Ch. 1 - You may have noticed that when water boils, you...Ch. 1 - One of the best indications of a useful theory is...Ch. 1 - Prob. 9ALQCh. 1 - Which (if any) of the following can be determined...Ch. 1 - The difference between a law and a theory is the...Ch. 1 - As part of a science project, you study traffic...Ch. 1 - Explain the fundamental steps of the scientific...Ch. 1 - When hydrogen is burned in oxygen to form water,...Ch. 1 - Explain the law of conservation of mass, the law...Ch. 1 - Chlorine has two natural isotopes: C1737I and...Ch. 1 - The vitamin niacin (nicotinic acid, C6H5NO2) can...Ch. 1 - Section 1-5 describes the postulates of Daltons...Ch. 1 - The contributions of J. J. Thomson and Ernest...Ch. 1 - What is the modern view of the structure of the...Ch. 1 - The number of protons in an atom determines the...Ch. 1 - If the volume of a proton is similar to the volume...Ch. 1 - Prob. 23QCh. 1 - What refinements had to be made in Daltons atomic...Ch. 1 - When mixtures of gaseous H2 and gaseous Cl2 react,...Ch. 1 - Observations of the reaction between nitrogen gas...Ch. 1 - A sample of chloroform is found to contain 12.0 g...Ch. 1 - A sample of H2SO4 contains 2.02 g of hydrogen,...Ch. 1 - Hydrazine, ammonia, and hydrogen azide al1 contain...Ch. 1 - Consider 100.0-g samples of two different...Ch. 1 - The three most stable oxides of carbon are carbon...Ch. 1 - Two elements, R and Q, combine to form two binary...Ch. 1 - Prob. 33ECh. 1 - In a combustion reaction, 46.0 g of ethanol reacts...Ch. 1 - Early tables of atomic weights (masses) were...Ch. 1 - Indium oxide contains 4.784 g of indium for every...Ch. 1 - Prob. 37ECh. 1 - If you wanted to make an accurate scale model of...Ch. 1 - In an experiment it was found that the total...Ch. 1 - A chemist in a galaxy far, far away performed the...Ch. 1 - Write the symbol of each atom using the ZAX...Ch. 1 - For carbon-14 and carbon-12, how many protons and...Ch. 1 - How many protons and neutrons are in the nucleus...Ch. 1 - What number of protons and neutrons is contained...Ch. 1 - Prob. 45ECh. 1 - Write the atomic symbol (ZAX) for each of the...Ch. 1 - For each of the following ions, indicate the...Ch. 1 - How many protons, neutrons, and electrons are in...Ch. 1 - Prob. 49ECh. 1 - What is the symbol of an ion with 16 protons, 18...Ch. 1 - Complete the following table:Ch. 1 - Complete the following table:Ch. 1 - Four Fe2+ ions are key components of hemoglobin,...Ch. 1 - Which of the following statements is/are true? For...Ch. 1 - Identify each of the following elements. Give the...Ch. 1 - The isotope of an unknown element, X, has a mass...Ch. 1 - Prob. 57AECh. 1 - The early alchemists used to do an experiment in...Ch. 1 - In a reaction, 34.0 g of chromium(III) oxide...Ch. 1 - Prob. 60CWPCh. 1 - Complete the following table. Atmos Number of...Ch. 1 - Complete the following table.Ch. 1 - Which of the following is( are) correct? a. C40a2+...Ch. 1 - Prob. 64CPCh. 1 - Each of the following statements is true, but...Ch. 1 - Reaction of 2.0 L of hydrogen gas with 1.0 L of...Ch. 1 - A combustion reaction involves the reaction of a...Ch. 1 - A chemistry instructor makes the following claim:...Ch. 1 - You have two distinct gaseous compounds made from...Ch. 1 - Using the information in Table 1-1, answer the...Ch. 1 - A single molecule has a mass of 7.31 1023 g....Ch. 1 - You have gone back in time and are working with...
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