Scenario A - At noon, a female body was found in a room with a temperature of 71°F. The body was dry, and no breeze flowed in the room. The body was clothed in pants and a light but long-sleeve shirt. The body weighed 144 lbs., and its core temperature was 90°F. Rigor mortis was absent, and livor mortis is visible. 1. What is your best estimate of the time of death? Explain your rationale in at least a couple of sentences.

What does the process of natural selection involve

7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation. 8. when a 2.5 mol of sugar (c12h22o11) are added to a certain amount of water the boiling point is raised by 1 celsius degree. if 2.5 mol of aluminum nitrate is added to the same amount of water, by how much will the boiling point be changed? show all calculations leading to your answer or use 3 – 4 sentences to explain your answer. 9. if 5.40 kcal of heat is added to 1.00 kg of water at 100⁰c, how much steam at 100⁰c is produced? show all calculations leading to an answer. 10. the freezing of water at 0⁰c can be represented as follows: h2o (l) ↔ h2o(s) the density of liquid water is 1.00 g/cm3. the density of ice is 0.92 g/cm3. in 3 – 4 sentences explain why applying pressure causes ice to melt.

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o