1. Suppose that another trial had been performed in Experiment 1 and that the RT for this trial had been 8 sec. The H2O2 concentration for this trial would most likely have been closest to which of the following?
2. Did H2O decompose faster in Trial 2 or in Trial 7?
3. Consider the gas bubbles that were responsible for causing the filter paper to rise to the surface. The interior of these gas bubbles was most likely primarily occupied by which of the following substances?
4. Suppose that in each trial of Experiment 1 the volume of the H2O solution contained in the beaker in Step 2 had been 400 mL. In Trial 5, the RT would most likely have been closest to which of the following?
5. If an incubation time of 36 hr had been tested in Study 1, the average number of E. coli cells/cm2 in 10% soy broth would most likely have been:
6. Which of the 4 media tested should the student select to minimize adherence of E. coli to a stainless steel surface over a 72 hr incubation period?
7. According to the results of Study 2, for all 4 of the incubation times tested, the average number of S. typhimurium cells/cm2 was greater than the average number of E. coli cells/cm2 for which of the media tested?
8. In Study 1, why were the soil samples oven dried before being analyzed?
9. Which of the following statements gives the most likely reason the lysimeters were installed 2 years before the studies began?
10. Which 2 plots should be compared to determine the effect of a forest’s age on total soil P in the absence of earthworms?
11. As the odorant concentration increased from 1 mg/L through 100 mg/L, the average change in antennal voltage:
12. Based on the figure, if adult female M. sexta are exposed to 5 mg/L of methyl salicylate, the average change in antennal voltage will most likely be:
13. For which of the following combinations of odorant and concentration was the average change in antennal voltage closest to the average change in antennal voltage for 50 mg/L of nerolidol?
14. For the M. sexta exposed to an odorant concentration of 1mg/L, what is the order of the 5 odorants, from the odorant that stimulated the least average change in antennal voltage to the odorant that stimulated the greatest average change in antennal voltage?
15. According to the passage, certain chemical compounds can stimulate a change in the electrical activity of a specific type of neuron in M. sexta. This type of neuron is found in what organ of the human body?
16. Consider a satellite that completes 1 revolution around Mars in exactly 5 hr. Based on Figure 1, the altitude at which this satellite orbits is most likely closest to which of the following?
17. Consider the hypothesis 'For a given central body and a given satellite mass, the greater the altitude of the orbit, the greater the orbital energy.' Which group(s) of satellites listed in Table 1 could be cited as evidence in support of this hypothesis?
18. Consider 3 satellites: 1 orbiting the Moon, 1 orbiting Earth, and 1 orbiting Mars. Each satellite has the same mass and orbits at the same altitude above its central body. Based on Figure 1, the satellite orbiting which central body most likely completes a revolution in the least time?
19. Consider the data for Satellites 5−8. The trend in this data set could be more completely demonstrated if which additional satellite were grouped together with Satellites 5−8?
20. All 3 scientists made which of the following statements about H2O or HCl?
21. Scientist 2’s description of an acid differs from that of Scientist 3 in which of the following ways? According to Scientist 2, an acid:
22. Consider the statement 'All bases contain hydroxide ions.' Which of the scientists would be likely to agree with the statement?
23. Consider the statement 'In any chemical reaction where a substance acts as an acid, there must also be a substance that acts as a base.' Which of Scientists 2 and 3, if either, would be likely to agree with this statement?
24. The chemical formula of hypochlorous acid is HOCl. In the reaction of HCl with H2O, HCl is an acid and would likely assert that HOCl is an acid, and explain that assertion by stating that, in H2O, HOCl dissociates into:
25. Based on Scientist 3’s model, which of these can never act as a base in a reaction: an individual atom of H or an individual atom of O? An atom of:
26. Consider Scientist 2’s model. The conjugate base of an acid can be defined as the part of the acid that remains after the acid has donated the H+ in a reaction. What substance is the conjugate base in the reaction described by Scientist 2?