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Question 1 1. What element is left following the emission of an alpha particle from Fr-211?
Question 2 2. Which piece of glassware should be used for performing titrations?
Question 3 3. Who is considered the father of modern chemistry due to his work involving the law of conservation of mass and oxygen's role in combustion?
Question 4 4. The volume of an object is measured to be 0.0035000 L. Which of the following best represents this number in scientific notation with the correct number of significant figures?
Question 5 5. The following experiment was started but never completed. Based on the data, which of the following could be the initial rate law?
Question 6 6. What is the pH of a 0.002 M H2SO4(aq) at 298 K? (Assume both hydrogen ions fully dissociate.)
Question 7 7. For the reaction represented by the equation below, which of the following is true?
Question 8 8. If 58.6 g of Cu(NO3)2 is dissolved completely into water, forming a 250.0 mL solution, what is the concentration of nitrate ions in the solution?
Question 9 9. If 4.50 mol of Al react with 325 g Cl2 according to the balanced equation below, what is the maximum amount, in grams, of AlCl3 that can be produced?
Question 10 10. Which of the following is an example of a formative assessment following an experiment in class?
Question 11 11. Which of the following is an example of a chemical change?
Question 12 12. Which of the following molecules has trigonal pyramidal geometry?
Question 13 13. Of the following, which element has the lowest first ionization energy?
Question 14 14. A gas at standard temperature and pressure is placed in a sealed container. If the temperature is quadrupled and the volume of the container does not change, what is the final pressure of the gas?
Question 15 15. Which of the following is most appropriate to do after analyzing data?
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