Research decompression sickness (also called the bends). Explain the causes and symptoms of decompression sickness. Prepare an instruction pamphlet for novice scuba divers on how to avoid this problem.

Imagine the discovery of a new toxin that blocks renal tubule reabsorption but does not affect filtration. Predict the short-term effects of this toxin.

Antonio had dinner at his favorite Italian restaurant. His menu consisted of a salad, a large plate of spaghetti, garlic bread, and wine. For dessert, he consumed "death by chocolate" cake and a cup of coffee. He topped off his evening with a cigarette and brandy. He returned home and, while lying on his couch watching television, he experienced a pain in his chest. He called 911 because he was certain he was having a heart attack. Antonio was told his heart was fine, but he needed to watch his diet. What happened to Antonio?

Trey has cystic fibrosis, a genetic disorder that is characterized by the production of excessive mucus, affecting several body systems (e.g., respiratory, digestive, reproductive). In the digestive system, the excess mucus blocks bile ducts in the liver and pancreatic ducts. How would this affect Trey's digestive processes?

Why would you not want to completely suppress $\mathrm{HCl}$ secretion in the stomach?

The Robinson family went to bed one frigid winter night and were found deceased the next day. A squirrel's nest was found in their chimney. What happened to the Robinsons?

Ms. Brown has smoked cigarettes for years and is having breathing difficulties. She has been diagnosed with emphysema. Describe specific kinds of structural changes you would expect to observe in Ms. Brown's respiratory system. How are air flow and gas exchange affected by these structural changes?

Aretha loves to sing. Right now she has a cold, a severely runny nose, and a "sore throat" that is affecting her ability to sing and talk. What structures are involved and how are they affected by her cold?

What is the heat of vaporization of water at $25\degree \mathrm{C}$?

Modern manufacturing applies the properties of gases in many ways. List three examples of things you see and use every day that apply gas properties. Include at least one household product. Write a short explanation of the property used in each example.

Factor Label Method In a laboratory, $400 \mathrm{~L}$ of methane are stored at $600 \mathrm{~K}$ and $1.25 \mathrm{~atm}$. If the methane is forced into a 200-L tank and cooled to $300 \mathrm{~K}$, how does the pressure change?

How does an increase in atmospheric pressure affect the following? (Chapter 10) a) the boiling point of water b) the melting point of ice

Copy and complete the table below for the rule $y = x^2 - 6x + 5$. Then graph the rule on graph paper.

$$\begin{matrix} \text{x} & \text{-1} & \text{0} & \text{1} & \text{2} & \text{3} & \text{4} & \text{5} & \text{6} & \text{7}\\ \text{y}\\ \end{matrix}$$

a. Completely describe the graph. b. Is the relation a function? c. State the domain and range.

Classify the following bonds as ionic, covalent, or polar covalent using electronegativity values. (Chapter 9 ) a) $\mathrm{NH}$ c) $\mathrm{BH}$ b) $\mathrm{BaCl}$ d) $\mathrm{NaI}$