INTRODUCTORY CHEMISTRY-W/SEL.SOLN.MAN.
6th Edition
ISBN: 9780134845609
Author: Tro
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 23QGW
In your own words, provide a brief definition for each of the following: observation, law, hypothesis, and theory.
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Which of the following is based upon repeatable data and is no longer tentative?
-Theory
-Scientific Law
-Hypothesis
Which statements are true regarding observations, experiments, theories, hypotheses,
laws, and scientific methods? Select all that apply.
The correct sequence of events in the scientific method are: observation
→ hypothesis
experiment
→ theory.
A theory is a guess about something that has occurred in nature.
O Scientific theories can not be tested and modified.
O Hypothesis is tentative interpretation or explanation of observations.
Which of the following statements are correct concerning the
scientific method? There is more than one correct answer.
"When a can of soda pop is opened, a fizzing sound is heard."
This is an example of observation.
DA scientific theory eventually becomes a law
"Helium balloons float because helium is less dense than air."
This statement can be considered an observation.
Scientific law is a tentative interpretation or explanation.
Both scientific law and theory have the potential to be proven
wrong.
Chapter 1 Solutions
INTRODUCTORY CHEMISTRY-W/SEL.SOLN.MAN.
Ch. 1 - Where can you find chemicals? a. In a hardware...Ch. 1 - Q2. Which statement best defines chemistry?
a. The...Ch. 1 - According to the scientific method, what is a law?...Ch. 1 - Q4. Which statement is an example of an...Ch. 1 - The graph below shows the area of a circle as a...Ch. 1 - Which characteristic is necessary for success in...Ch. 1 - Why does soda fizz?Ch. 1 - 2. What are chemicals? Give some examples.
Ch. 1 - What do chemists try to do? How do they understand...Ch. 1 - 4. What is meant by the statement, “Matter does...
Ch. 1 - Define chemistry.Ch. 1 - How is chemistry connected to everyday life? How...Ch. 1 - 7. Explain the scientific method.
Ch. 1 - Cite an example from this chapter of the...Ch. 1 - What is the difference between a law and a theory?Ch. 1 - 10. What is the difference between a hypothesis...Ch. 1 - What is wrong with the statement, It is just a...Ch. 1 - What is the law of conservation of mass, and who...Ch. 1 - What is the atomic theory, and who formulated it?Ch. 1 - Prob. 14ECh. 1 - Classify each statement as an observation, a law,...Ch. 1 - 16. Classify each statement as an observation, a...Ch. 1 - 17. A student prepares several samples of the same...Ch. 1 - A student measures the volume of a gas sample at...Ch. 1 - A chemist in an imaginary universe does an...Ch. 1 - 20. A chemist decomposes several samples of water...Ch. 1 - 21. The manufacturer of a particular brand of...Ch. 1 - Prob. 22QGWCh. 1 - 23. In your own words, provide a brief definition...Ch. 1 - 24. How curious are you? How good are your...Ch. 1 - 25. The graph displays world population over time....
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- Compare the uses of the words theory and hypothesis by scientists and by the general public.arrow_forwardDefine the terms experiment and theory. How are theory and experiment related? What is a hypothesis?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
- In 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_forwardIn the following scenario, identify which of the statements represents a theory, law, or hypothesis. (a) A student exploring the properties of gases proposes that is she decreases the volume of a sample of gas then the pressure exerted by the sample will increase (b) Many scientists over time have conducted similar experiments and have concluded that pressure and volume are inversely proportional. (c) She proposes that the reason this occurs is that if the volume is decreased, more molecules will collide with a given area of the container walls, causing the pressure to be greater.arrow_forwardClassify each description as a hypothesis, theory, or law.-An untested explanation based upon observation or known facts-A description that predicts what happens, but doesn't explain how-Scientists after many experiments, state that matter is composed of atoms- An explanation that has been tested and verified- A botanist guesses, but has not verified , that plants with one red-flowered and one white flowered parent will have pink flowersarrow_forward
- The Scientific Method Group of answer choices isn't used much in modern chemistry. is a strict set of rules and procedures that lead to inarguable fact is based on continued observation and experiment is just a theoryarrow_forwardWhich of the following statements is TRUE? Group of answer choices A scientific law summarizes a series of related observations. Once a theory is contructed, it is considered fact. A hypothesis is speculation that is difficult to test. An observation explains why nature does something.arrow_forwardWhich of the following describes the idea of a justification in scientific argumentation? (More than 1 answer is possible.) The justification is... none of these PSC uses scientific ideas connecting analyzed data to conclusions. O is the relationship between variables. is the logical and explicit connection between claim & evidence the reasoning connecting the evidence to the data. F1 F2 80 F3 $ F4 % F5 MacBook Air F6 & A F7 DII F8 F9 F10 F11 F12arrow_forward
- In the course of a conversation, you observe that three of your friends like horror movies. Horror movies happen to be your favorite type of movie as well. You also know that all of these friends were born in the same week that you were, even in the same year. An astrology-loving friend hypothesizes that people born in that week like horror movies more than other genres of movies. You decide to use the scientific method to test this hypothesis. Part A What should you do next? O Come up with a theory to explain why movie preference is related to birth week. O Perform experiments to test your hypothesis. O Propose several alternative hypotheses. O Refine your hypothesis. Submit Request Answerarrow_forwardIdentify the correct order of the steps in the scientific method: [Select] [Select] [Select [Select] [Select] [Select] Analyze results & draw conclusions Design experiments to test hypothesis Make an observation of an interesting phenomenon Conduct experiments & collect data Communicate findings and/or perform additional tests Formulate a hypothesis to explain observationarrow_forwardType of Matter Substance Mixture Chlorine (Cl,) Water (H,O) Lucky Charms Salt water Nitrogen (N.) Salt (NaCl) Rocky road ice cream Rubbing Alcohol Pure air Iron (Fe)arrow_forward
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