Chemistry In Focus
7th Edition
ISBN: 9781337399692
Author: Tro, Nivaldo J.
Publisher: Cengage Learning,
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Textbook Question
Chapter 1, Problem 1E
What is meant by the statement “Macroscopic observations have molecular causes”? Give two examples.
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Chapter 1 Solutions
Chemistry In Focus
Ch. 1 - A chemist observes the behavior of a gas by...Ch. 1 - Classifying Matter Determine whether each of the...Ch. 1 - A cup of coffee is an example of: a. a liquid pure...Ch. 1 - Water is put on the stove and heated with a...Ch. 1 - The Conservation of Mass A match is weighed and...Ch. 1 - Constant Composition of Compounds Two samples of...Ch. 1 - Prob. 4SCCh. 1 - What is meant by the statement Macroscopic...Ch. 1 - Why should nonscience majors study science?Ch. 1 - Prob. 3E
Ch. 1 - Define chemistry.Ch. 1 - Prob. 5ECh. 1 - Prob. 6ECh. 1 - How are science and art similar? How are they...Ch. 1 - What is different about the Greek philosophers...Ch. 1 - Match each of the people in column A with their...Ch. 1 - What were the two main pursuits of alchemy? What...Ch. 1 - Prob. 11ECh. 1 - What is the difference between an element and a...Ch. 1 - What is the difference between a pure substance...Ch. 1 - What is the difference between a homogeneous...Ch. 1 - Explain the differences among a solid, a liquid,...Ch. 1 - Match each term in the left column with three...Ch. 1 - What is the atomic theory?Ch. 1 - Describe Rutherfords gold foil experiment.Ch. 1 - Describe the structure of the atom as explained by...Ch. 1 - What are black holes, and how does their existence...Ch. 1 - Classify each of the following as an observation...Ch. 1 - Classify each of the following as a law or a...Ch. 1 - To the best of your knowledge, classify each of...Ch. 1 - To the best of your knowledge, classify each of...Ch. 1 - Which substance is a liquid mixture? a. lemonade...Ch. 1 - Which substance is a solid? a. the helium in a...Ch. 1 - Classify each of the following properties as...Ch. 1 - Classify each of the following properties as...Ch. 1 - Classify each of the following changes as physical...Ch. 1 - Classify each of the following changes as physical...Ch. 1 - The burning of gasoline in automobile engines is a...Ch. 1 - A campfire is a chemical reaction involving wood...Ch. 1 - Prob. 33ECh. 1 - Prob. 34ECh. 1 - A chemist combines 22 grams of sodium with 28...Ch. 1 - A chemist combines 6 grams of hydrogen with 52...Ch. 1 - Several samples of carbon dioxide are obtained and...Ch. 1 - Several samples of methane gas, the primary...Ch. 1 - According to Rutherfords model of the atom, how...Ch. 1 - According to Rutherfords model of the atom, how...Ch. 1 - When water boils, small bubbles form in the...Ch. 1 - Prob. 42ECh. 1 - Prob. 43ECh. 1 - Prob. 44ECh. 1 - Prob. 45ECh. 1 - The nuclei of a limited number of atoms are...Ch. 1 - Prob. 47ECh. 1 - Based on the molecular views shown for each of the...Ch. 1 - Read The Molecular Revolution" box in this chapter...
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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_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_forwardThe Chemistry in Focus segment titled Dr. Ruth—cotton Hero discusses the enormous contribution of Dr. Ruth Rogan Benerito to the survival of the cotton fabric industry in the United States. In the discussion, it was mentioned that Dr. Benerito became a chemist when women were not expected to be interested in, or good at, scientific subjects. Has this attitude changed? Among your own friends, approximately how many of your female friends are studying a science? How many plan to pursue a career in science? Discuss.arrow_forward
- As stated in the text, there is no one scientific method. However, making observations, formulating hypotheses, and performing experiments are generally components of “doing science.” Read the following passage, and list any observations, hypotheses, and experiments. Support your answer. Joyce and Frank arc eating raisins and drinking ginger ale. Frank accidentally drops a raisin into his ginger ale. They both notice that (lie raisin falls to the bottom of the glass. Soon, the raisin rises Lo the surface of the ginger ale, then sinks. Within a couple of minutes, it rises and sinks again. Joyce asks. “I won der why that happened?” Frank says. I don’t know, hut let’s see if it works in water.” Joyce fills a glass with water and drops the raisin into the glass. After a few minutes, Frank says, “No, it doesn’t go up and down in the water.” Joyce closely observes the raisins in the two glasses and states, “Look, there are hubbies on the raisins in the ginger ale but not on the raisins in the water.” Frank says, ‘it must be the bubbles that make the raisin rise.” Joyce asks, “OK, hut then why do they sink again?”arrow_forwardClassify each of the following as an observation or a law: a. When water boils, small bubbles form in the liquid and rise rapidly to the surface. b. Two grams of hydrogen combine with 16 grams of oxygen to form 18 grams of water. c. Chlorine and sodium readily combine in a chemical reaction that emits much heat and light. d. The properties of elements vary periodically with the mass of their atoms.arrow_forwardIn Section 1.3 the statement is made that it is worthwhile for scientists, auto mechanics, doctors, politicians, and poets to take a scientific approach to their professions. Discuss how each of these people could use a scientific approach in his or her profession.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_forwardScientific models do not describe reality. They are simplifications aid therefore incorrect at some level. So why are models useful?arrow_forwardWhy should nonscience majors study science?arrow_forward
- The role of science is to supply accurate and subjective information related to a crime, which would reflect or link up the event(s) that had been occurred This statement is true or false?arrow_forwardIs the underlined part of the macroscopic domain, or the microscopic domain of chemistry ? 16 g of oxygen reacts with 2 grams of hydrogen to produce 18 g of waterarrow_forwardWe commonly encounter chemical reactions in daily life such as fire and biological metabolism. Cite at least two (2) examples of real-life situations that involve the Law of conservation of mass and explain how these affects you.arrow_forward
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