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Refer to the research study below to answer questions 7-12. Dr. Rem studies sleep and sleep disorders. She is curious as to whether falling asleep in front of a television set causes people to fall asleep more slowly than falling asleep without watching TV. She recruits a sample of 60 women and creates three conditions. All participants come to the sleep lab for three nights in a row and experience all three conditions. In the first condition (A), participants fall asleep in front of a television that is off. In the second condition (B), participants fall asleep in front of a television that is turned on to a 24-hour news channel. In the third condition (C), participants fall asleep in front of a television that is turned on to the same 24-hour news channel but is muted. Participants sleep in the same bed each night. With the use of an electroencephalograph (EEG; a physiological measure that measures electrical activity in the brain), the researcher measures how long it takes participants to fall asleep each night.   What is the independent variable?

Refer to the research study below to answer questions 26-29. Dr. Math wondered if children learn multiplication better if they are taught by a teacher wearing a shirt depicting a nice cartoon character rather than a shirt depicting a scary cartoon character. He randomly assigned students to one of two classes. In class A, Mr. Jackson wore a SpongeBob (nice character) shirt while teaching multiplication. In class B, Mrs. Samalez wore a Joker (scary character) shirt while teaching multiplication. All students then took a multiplication test. A suspicion probe indicated that students were unaware of the purpose of the study.   To make sure that the students thought SpongeBob was nice and the Joker was scary, Dr. Math could have _________.

Complete the following reactions by choosing the right reagent from the provided list. What is D? Your answer should be a number from 1 to 14

Which of the following is TRUE about within-groups designs?

Which of the following is NOT an intermediate in the following reaction?

Choose the right option for Step 2

At a constant temperature of 971 °C or 698 K, the value of the equilibrium constant K for this reaction is 1.84 x 10−2. At this temperature, which is favored, the reaction product or the reactant? In other words, does the equilibrium point lie closer to the products or reactants side of the reaction equation? Briefly justify your answer.

Rank the following carboxylic acid derivatives from the most stable to the least stable.  (Ex: X>Y>Z)  

Unless otherwise stated by exam instructions or official accommodations are in place, I understand that any and all electronic devices including but not limited to cell phones, iPads or tablets, digital or smart watches, second monitors, or other devices are not allowed to be used or out during the exam. 

H2S molecular shape: [shape] hybridization of the central atom [hybridization] common name or IUPAC name: [name] number of sigma bonds: [sigma] number of pi bonds: [pi]