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

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

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter1: Introduction To Chemistry

Section: Chapter Questions

Problem 1.15PAE: 1.15 We used the example of attendance at a football game to emphasize the nature of observations....

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A group of five students attempted to estimate 100 g of a substance by balancingthe amount of the substance with a 100-g standard mass and obtained the followingmasses after each estimated amount was weighed: 95.8634 g, 80.8125 g, 106.5078g, 98.2865 g, and 86.4453 g. Create a data table as shown below and use the datato determine the answers to the following questions:Mass (g) Deviation (g) % Deviation Error (g) % Errora) What is the mean? And what is the true value?b) What are the deviation and % deviation from the mean for each value?c) What are the error and % error for each value?
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. 1 2 3 4 5
You observe that sugar dissolves more quickly in hot teathan in iced tea. You state that higher temperaturesincrease the rate at which sugar dissolves in water. Is thisstatement a hypothesis or a theory? Why?
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1.17 Complete the following statement: Data that have a large systematic error can still he (a) accurate, (b) precise, or (c) neither.
1.21 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.
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1.15 We used the example of attendance at a football game to emphasize the nature of observations. Describe another example where deciding how to count subjects of interest could affect the observation.
1.75 What does it mean that ITO films are made by deposition? In what phase do materials begin, and in what phase do they end up?
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