Basic Chemistry, Books a la Carte Plus Mastering Chemistry with Pearson eText -- Access Card Package (5th Edition)
5th Edition
ISBN: 9780134270289
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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Read the paragraph below and identify the aspects of the scientific method that best align with each numbered sentence or phrase. Some answer options may be used more than once. The options are observation, theory, hypothesis, revised hypothesis, experiment, and law. The number option is before the period of each sentece.
You are preparing to study for your chemistry exam and flip the switch to turn on your desk lamp. You find that the light does not come on (1). Based on past experiences, you guess that your roommate unplugged the lamp to use their hair drier and forgot to plug the lamp back in (2). You look under the desk and see that the lamp is plugged in (3). You decide instead that the lightbulb must be burned out (4) but you find that the light won’t turn on with a new lightbulb, either (5). You decide that the lamp is broken (6).
How many of the following should be included in a good hypothesis?
(i) A prediction of the results of the experiment
(ii) A step-by-step walkthrough of how to do the experiment with specific references to amounts of reactants, glassware used, and other experimental details
(iii) A summation of the data collected after doing the experiment, with comments on accuracy and precision if possible.
(iv) A detailed list of chemicals that will be used
(v) Waste disposal procedures
(vi) A brief scientific explanation of the predicted results. Said another way, the hypothesis should include a scientific explanation of why the predicted results are expected.
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1.) Which macroscopic characteristics differentiate solids, liquids, and gases? (List as many as possible.)
2.) In what types of technology do the elements designated as critical materials generally play important roles?
3.) When a scientist looks at an experiment and then predicts the results of other related experiments, which type of reasoning is she using? Explain your answer.
Chapter 1 Solutions
Basic Chemistry, Books a la Carte Plus Mastering Chemistry with Pearson eText -- Access Card Package (5th Edition)
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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- Compare the uses of the words theory and hypothesis by scientists and by the general public.arrow_forwardAs 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_forwardList the more common types of measurements made in chemical laboratories.arrow_forward
- 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. View Available Hint(s)for Part B ResetHelp returned "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…arrow_forwardIdentify each of the following statements as being most similar to a hypothesis, a law, or a theory. Explain your reasoning. (a) Falling barometric pressure precedes the onset of bad weather. (b) All life on earth has evolved from a common, primitive organism through the process of natural selection.arrow_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_forward
- WHAT IS THE MAIN REASON IN TRYING TO UNDERSTAND PHENOMENA IN SCIENCE? a. HYPOTHESIS b. THEORY c. PREDICTION d. INFORMATION e. ASSUMPTIONarrow_forwardHow is a qualitative observation different from a quantitative observation? Give an example of each.arrow_forwardOf the following propositions, the one that is considered as the confirmation of the hypothesis is:Unique option. A)scientific method B) law C) hypothesis D) observation E)theoryarrow_forward
- How do advancements of technology help us update or change various existing concepts? Why do you think collaboration among scientists is important to develop robust body of scientific knowledge?arrow_forwardA scientific theory is a tentative explanation for an observation. Question 1 options: True False Question 2 Complete the following calculation. Report your answer with the correct number of significant figures. (2.071 / 6.4415) - 10.65 = ?arrow_forwardDescribe the scientific method, and indicate by example how it is used to answer questions about situations we encounter in our every day lives.arrow_forward
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