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MTLE Chemistry: Using Math & Computers Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. What is science?

Question 2 2. In the measurement 29.4 cm, what number(s) is the uncertain digit?

Question 3 3. Which of the following can you do once you have a good model?

Question 4 4. What do we call two sets of variables that can change and are compared to find relationships?

Question 5 5. What is the density of a solid that has a mass of 9.2 grams and a volume of 12.3 cm3 ? Would this object float or sink in water?

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Question 6 6.

Use a ruler or a graphing calculator to find the regression line of the following data set:

(2, 3) (4, 6) (5, 1) (2, 4) (1, 3) (6, 3)

Question 7 7. Which measurement has higher uncertainty?

Question 8 8. Which of the following is NOT an example of a way scientists use computers?

Question 9 9. How many significant figures should the product of 1.2 x 1.4592 contain?

Question 10 10. Which of the following is NOT an example of a use of technology in science?

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Question 11 11. Which of the following is a conversion factor?

Question 12 12. You are measuring the volume of a liquid that is 20.31 mL. What are your certain digits in this measurement?

Question 13 13. What is a graph of ordered pairs showing a relationship between two sets of data?

Question 14 14. Which of the following are arranged from smallest unit to largest unit?

Question 15 15. Regression analysis relates what to each other?

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Question 16 16. What would give you a more precise reading, a yard stick with feet as its smallest unit or a yard stick with inches as its smallest unit?

Question 17 17. The density of mercury is 13.6 g/mL. What is its density in lbs/L? (Hint: 1 lb = 0.454 kg)

Question 18 18. What is the relationship between two sets of variables used to describe or predict information?

Question 19 19. How many mL are in 3.4 L?

Question 20 20. The linear model uses what to fit the data?

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Question 21 21. What is technology?

Question 22 22. One mole of aluminum atoms has a mass of 27 grams. How many grams are in 9.0 moles of aluminum?

Question 23 23. How many significant figures are in the number 0.220?

Question 24 24. If you are driving at a speed of 55.0 miles per hour, then what is your speed in meters per second? (Hint: 1 mile = 1,600 meters.)

Question 25 25. Which of the following is the outlier?

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Question 26 26. Which of the following is the closest to a mass of 500 mL of water?

Question 27 27. What is the purpose for using a model in regression analysis?

Question 28 28. Which of the following statements about the relationship between science and technology is correct?

Question 29 29. Use dimensional analysis to convert 4 days into seconds.

Question 30 30. What is the mass of a liquid with a density of 2.12 g/mL and a volume of 53.0 mL (to the nearest gram)?

MTLE Chemistry: Using Math & Computers Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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