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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]

Give the charge that would be on each of the following atoms if ionized. Ba     [ba] I        [i] Ag    [ag] CuI  [cui] O      [o] Rb     [rb] P       [p] OH   [oh] Cr (IV)  [criv] H         [h]  

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I acknowledge that proctored exams are recorded and may be reviewed by instructors or TAs. I understand that if any potential academic misconduct is flagged, the consequences outlined in the BYU Academic Honesty Policy will apply, which may include failing the exam.

Using the electronegativity table and the rules (which suggest that a difference in electronegativity below 0.4 is equally shared, 0.5–1.7 is polar covalent, and greater than 1.8 is ionic), the bonds in BeBr2 (the electronegativity of Be is 1.5 and Br is 2.8) would be classified as ________.

I understand that I will be required to complete a 360-degree room scan prior to taking any exams and that the room scan needs to show my entire testing environment, including the desk or table. 

Name the following compounds: Fe2O3 FeCl2 Na2S Al2O3   Name of A: [iron3oxide]     Name of B: [iron2chloride] Name of C: [Sodiumsulfide]     Name of D: [aluminumOxide]        

On this heating curve for water, do the following: Explain why there are the flat plateaus labeled melting and boiling. Using your knowledge of the molecular structure of water and of intermolecular forces, explain why the plateau is greater for boiling than for melting. Submit your response using the text editing tools in the box below. See the description for details “The image shows a heating curve for a substance, plotting temperature (in °C) against the heat absorbed. The graph indicates the phases of matter as the substance is heated: Solid: The substance is in a solid state at temperatures below 0°C. Melting: At 0°C, the substance begins to melt, transitioning from solid to liquid. Liquid: After melting, the substance remains in liquid form as the temperature rises. Boiling: At around 100°C, the substance starts to boil, transitioning from liquid to gas. Gas: The substance eventually reaches a gaseous state as the temperature exceeds 100°C.”

The number of calories in 3.0 g of glucose (blood sugar) is listed as 10.0 cal. If 15.0 g of glucose is reacted in a calorimeter, such that all of the energy is released and captured in a 1,000.00-gram water bath surrounding the calorimeter, what is the expected final temperature of the water following the reaction if the initial water temperature is 21.0 °C? The specific heat of water is 4.18 J/g °C or 1.00 cal/g °C. Work out the problem on a separate piece of paper and upload a photo of your response at the end of the test. Please mark the problem clearly and show your work. Enter your answer in the text box below.