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 13Q
Explain the fundamental steps of the scientific method. The scientific method is a dynamic process. What does this mean?
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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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- If all scientists use the scientific method to try to arrive at a better understanding of the world, why do so many debates arise among scientists?arrow_forwardTrue or false? If a theory is disproven, then all of the observations that support that theory are also disproven. Explain.arrow_forwardWhy is the ability to solve problems important in the study of chemistry? Why is it that the method used to attack a problem is as important as the answer Lo the problem itself?arrow_forward
- Being a scientist is very much like being a detective. Detectives such as Sherlock Holmes or Miss Marple perform a very systematic analysis of a crime to solve it, much like a scientist does when addressing a scientific investigation. What are the steps that scientists (or detectives) use to solve problems?arrow_forwardA red-orange solid contains only mercury and oxygen. Analyses of three different samples gave the following results. Are the data consistent with the hypothesis that the material is a compound?arrow_forward1.23 Should the words theory and model be used interchangeably in the context of science? Defend your answer using information found in a web search.arrow_forward
- Paracelsus, a sixteenth-century alchemist and healer, adopted as his slogan: "The patients are your textbook, the sickbed is your study. Is this view consistent with using the scientific method?arrow_forwarda Which of the following substances would you expect to be elements and which would you expect to be compounds? 1 calcium carbonate; 2 arsenic; 3 uranium; 4 potassium chloride; 5 chloromethane. b On what general rule do you base your answers to part a? Can you name any exceptions to this general rule?arrow_forwardScientific models do not describe reality. They are simplifications aid therefore incorrect at some level. So why are models useful?arrow_forward
- Students approaching the study of chemistry must learn certain basic facts (such as the names and symbols of the most common elements), but it is much more important that they learn to think critically and to go beyond the specific examples discussed in class or in the textbook. Explain how learning to do this might be helpful in any career, even one far removed from chemistry.arrow_forwardThis section presents several ways our day-to-day lives have been enriched by chemistry. List three materials or processes involving chemistry that you feel have contributed to such an enrichment, and explain your choices.arrow_forwarda Which of the following substances would you expect to be elements and which would you expect to be compounds? 1 aluminum sulfate; 2 osmium; 3 radon; 4 lithium carbonate; 5 dimethylhydrazine. b On what general rule do you base your answers to part a? Can you name any exceptions to this general rule for compounds?arrow_forward
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