EBK BASIC CHEMISTRY
5th Edition
ISBN: 8220101472335
Author: Timberlake
Publisher: PEARSON
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Chapter 1.2, Problem 1.8QAP
Identify each of the following activities in the scientific method as an observation (O), a hypothesis (H), an experiment (E), or a conclusion (C):
- Formulate a possible explanation for your experimental results.
- Make notes about nature.
- Design an experimental plan that will give new information about a problem.
- State a generalized summary of your experimental results.
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Part B - Use the scientific method
Read the case study and use your knowledge of the scientific method to identify the observation, hypothesis, experiment, and conclusion.
Our English springer spaniels like our neighbors’ children and could play with them all day. We thought our dogs will never dislike any children they will ever meet. Last month when we took our dogs on a trip, we met some German tourists in a park. The dogs loved playing with the foreign family’s children. Our English springer spaniels like all children.
Match the words to the appropriate blanks in the sentences. Make certain each sentence is complete before submitting your answer.
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"Our English springer spaniels like our neighbors' children" is a(n) observation.target 1 of 4
Allowing the dogs to play with the German family's children is the hypothesis.target 2 of 4
"Our English springer spaniels like all children" is our…
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.
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Request Answer
Identify 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 observation
Chapter 1 Solutions
EBK BASIC CHEMISTRY
Ch. 1.1 - Write a one-sentence definition for each of the...Ch. 1.1 - Write a one-sentence definition for each of the...Ch. 1.1 - Obtain a bottle of multivitamins and read the list...Ch. 1.1 - Prob. 1.4QAPCh. 1.1 - Read the labels on some items found in your...Ch. 1.1 - Read the labels on products used to wash your...Ch. 1.2 - Define each of the following terms of the...Ch. 1.2 - Identify each of the following activities in the...Ch. 1.2 - Prob. 1.9QAPCh. 1.2 - Identify each activity, a to f, as an observation...
Ch. 1.2 - Prob. 1.11QAPCh. 1.2 - Identify each of the following as an observation...Ch. 1.3 - Prob. 1.13QAPCh. 1.3 - Prob. 1.14QAPCh. 1.3 - Prob. 1.15QAPCh. 1.3 - Prob. 1.16QAPCh. 1.4 - What is the place value for the bold digit? 7.3288...Ch. 1.4 - Prob. 1.18QAPCh. 1.4 - Prob. 1.19QAPCh. 1.4 - Prob. 1.20QAPCh. 1.4 - Prob. 1.21QAPCh. 1.4 - Prob. 1.22QAPCh. 1.4 - Prob. 1.23QAPCh. 1.4 - Prob. 1.24QAPCh. 1.4 - Prob. 1.25QAPCh. 1.4 - What is measured on the horizontal axis? What is...Ch. 1.5 - Prob. 1.27QAPCh. 1.5 - Prob. 1.28QAPCh. 1.5 - Write each of the following as a standard number:...Ch. 1.5 - Prob. 1.30QAPCh. 1.5 - Prob. 1.31QAPCh. 1.5 - Prob. 1.32QAPCh. 1 - Prob. 1.33FUCh. 1 - Prob. 1.34FUCh. 1 - Prob. 1.35UTCCh. 1 - Prob. 1.36UTCCh. 1 - Prob. 1.37UTCCh. 1 - Prob. 1.38UTCCh. 1 - Prob. 1.39UTCCh. 1 - Prob. 1.40UTCCh. 1 - Prob. 1.41UTCCh. 1 - Prob. 1.42UTCCh. 1 - Prob. 1.43AQAPCh. 1 - Prob. 1.44AQAPCh. 1 - Prob. 1.45AQAPCh. 1 - Prob. 1.46AQAPCh. 1 - Prob. 1.47AQAPCh. 1 - Prob. 1.48AQAPCh. 1 - Evaluate each of the following: (1.4) 4x(-8)=...Ch. 1 - Prob. 1.50AQAPCh. 1 - Prob. 1.51AQAPCh. 1 - Prob. 1.52AQAPCh. 1 - Prob. 1.53AQAPCh. 1 - Prob. 1.54AQAPCh. 1 - Prob. 1.55AQAPCh. 1 - Prob. 1.56AQAPCh. 1 - Prob. 1.57CQCh. 1 - Prob. 1.58CQCh. 1 - Solve each of the following for X: (1.4) 2x + 5 =...Ch. 1 - Solve each of the following for z: (1.4) 3z ( 6)...Ch. 1 - What does the title indicate about the graph?...Ch. 1 - What is measured on the horizontal axis? (1.4)...
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- What are several political, social, or personal considerations that might affect a scientist's evaluation of a theory?What are examples of how such external forces have influenced scientists in the past?What are methods by which such bias might be excluded from future scientific investigations?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_forwardDefine the terms experiment and theory. How are theory and experiment related? What is a hypothesis?arrow_forward
- Suppose you are trying to get lemon juice and you have no juicer. Some people say that you can get more juice from a lemon if you roll it on a hard surface, applying pressure with the palm of your hand before you cut it and squeeze out the juice. Others claim that you will get more juice if you first heat the lemon in a microwave and then cut and squeeze it. Apply the methods of science to arrive at a technique that will give the most juice from a lemon. Carry out experiments and draw conclusions based on them. Try to generate a hypothesis to explain your results.arrow_forwardCompare the uses of the words theory and hypothesis by scientists and by the general public.arrow_forwardWhich of the following represent physical properties or changes, and which represent chemical properties or changes? You curl your hair with a curling iron. You curl your hair by getting a “permanent wave” at the hair salon. Ice on your sidewalk melts when you put salt on it. A glass of water evaporates overnight when it is left on the bedside table. Your steak chars if the skillet is too hot. Alcohol feels cool when it is spilled on the skin. Alcohol ignites when a flame is brought near it. Baking powder causes biscuits to rise.arrow_forward
- 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.arrow_forwardIn the table below you will find three descriptions of scientists engaging in activities that are part of the scientific method. What are the missing words? description Jack suggests that substances burn because they contain a fiery liquid substance he calls phlogiston. His explains why there are visible flames around a burning substance (that's the phlogiston escaping) and also why most burning substances lose weight when they burn (the phlogiston escapes). Joseph decides to test the idea of his friend Carl that heating certain compounds releases a strange new gas with interesting properties (e.g. it is exhilirating to breathe). He carefully weighs out a number of samples and puts them in sealed tubes, then heats them until they stop changing, then records the new weights. By subtracting the weights he is able to tell whether an invisible gas released during the Antoine develops a for chemical reactions based around the idea that most substances will chemically combine with an…arrow_forwardObserved increases in global temperatures are caused byelevated levels of carbon dioxide. Is this statement a theory or a scientific law? Explain your reasoning.arrow_forward
- Answer the table and questions.arrow_forwardIn the table below you will find three descriptions of scientists engaging in activities that are part of the scientific method. What are the missing words? missing word? description Antoine burns some charcoal, and a very small diamond (1), and makes that the only product of both reactions is a heavy gas the (carbon dioxide). After studying the chemical reactions of many compounds made of carbon, August discovers a that says carbon always forms 4 chemical bonds to other atoms when it forms a compound. Dmitri discovers that the known chemical elements can be arranged in a pattern of columns and rows, with elements in the same column behaving similarly. But there is no element at a certain place in the pattern, and Dmitri proposes the that an unknown element fits into that spot, and that it will have properties similar to the elements above and below it in the pattern. 0 0 0 5 ?arrow_forwardRead the descriptions below of two substances and an experiment on each. Decide whether the result of the experiment tells you the substance is a pure substance or a mixture, if you can.arrow_forward
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