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Questions in Grade College

[Jawaban] Which of the following structures are perspective formulas of the stereoisomers of 2,3-dibromobutane? a. C b. D c. E d. B e. A

[Jawaban] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Jawaban] Which of the following was responsible for coordinating the economy during World War I? A. Selective Service Act B. War Industries Board C. Council of National Defense D. Committee of Public Information

[Jawaban] What are three advantages of digital X-rays over film X-rays? A. They provide better contrast. B. They produce less waste. C. They are faster. D. They work on soft tissues.

[Jawaban] Select the correct answer from each drop-down menu. Brittany surveyed the students in three different Chemistry classes regarding the average number of hours of sleep they get each night. She calculated the mean and standard deviation, SD, of the data and recorded the results in the table below. | Class A | Class B | Class C | | :-------- | :-------- | :-------- | | Mean=7.35 | Mean=6.87 | Mean=8.14 | | SD=2.92 | SD=3.65 | SD =3.10 | Use the information provided to complete the following statement. Class $\square$ shows the most consistency in the number of hours slept per night because the $\square$ is the $\square$.

[Jawaban] Which cannot be chemically broken down into simpler substances? A. compound B. element C. solution D. mixture

[Jawaban] How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water ( [tex]K_{ f }=1.86^{\circ} C /( mol / kg )[/tex] for water and [tex]i=1[/tex] for sugar)? A. [tex]7.44^{\circ} C[/tex] B. [tex]2.15^{\circ} C[/tex] C. [tex]1.86^{\circ} C[/tex] D. [tex]4.00^{\circ} C[/tex]

[Jawaban] What is the output file generated after compiling C code (in Linux)? A. a.exe B. program.c C. a.out D. main.txt

[Jawaban] Why does the executive office of the president include press and communications staff? A. The president uses mass media to speak to Congress. B. The president uses mass media to gain support for policies. C. The president uses mass media to issue executive orders. D. The president uses mass media to speak to other countries.

[Jawaban] Select the correct answer. Which graph is the graph of [tex]$f(x)=3 \log _2(x+1)$[/tex]? A. B.