Write the structures of the following compounds: (a) Butyldiethylammonium bromide (b) Tetrabutylammonium hydroxide (c) Propylammonium iodide (d) Isopropylmethylammonium chloride

Write an equation for the acid-base equilibrium of: (a) Pyrrolidine and water (b) Pyridine and water Label each species in the equilibrium as either an acid or a base.

Select the letter of the choice that best completes the statement. The brain and the spinal cavity are located in the: (a.) ventral cavity (b.) spinal cavity (c.) cranial cavity (d.) dorsal cavity

Which of the following statements is true of alcohol? a. Alcohol is a hallucinogen, because it makes people believe things that are not true. b. Alcohol is a depressant, because it causes people to feel sad when under its influence. c. Alcohol is a stimulant, because people do foolish things while under its influence. d. Alcohol is a depressant, because it calms neural activity and slows body function. e. Alcohol is a stimulant, because it increases the heart rate as consumption increases.

A random survey of 75 death row inmates revealed that the mean length of time on death row is 17.4 years with a standard deviation of 6.3 years. Conduct a hypothesis test to determine if the population mean time on death row could likely be 15 years. a. Is this a test of one mean or proportion? b. State the null and alternative hypotheses. $H_{0}$ ___________ $H_{a}:$ ___________ c. Is this a right-tailed, left-tailed, or two-tailed test? d. What symbol represents the random variable for this test? e. In words, define the random variable for this test. f. Is the population standard deviation known and, if so, what is it? g. Calculate the following: i. $\bar{x}=$ __________ ii. s = ____________ iii. n = ____________ h. Which test should be used? i. State the distribution to use for the hypothesis test. j. Find the p-value. k. At a pre-conceived $\alpha=0.05,$ what is your: i. Decision: ii. Reason for the decision: iii. Conclusion (write out in a complete sentence):

Draw the acetal produced when ethanol adds to ethanal.

Draw the acetal produced when ethanol adds to ethanal.

Draw the compound that would produce 4-ethyl-3-hexanol in the presence of a nickel catalyst and hydrogen.

Oxidation of a dithiol such as hexane-2,5-dithiol forms a six-membered ring containing a disulfide group as part of the ring. Draw the structure of this cyclic disulfide.

Which compounds contain chiral centers? (a) 2-Chloropentane (b) 3-Chloropentane (c) 3-Chloro-1-pentene (d) 1,2-Dichloropropane

Draw the alcohol that is the product of the reduction of 3-methylpentanal.

Two bumper cars in an amusement park ride collide elastically as one approaches the other directly from the rear. Car A has a mass of $450 \mathrm{~kg}$ and car B $490 \mathrm{~kg}$, owing to differences in passenger mass. If car A approaches at $4.50 \mathrm{~m} / \mathrm{s}$ and car B is moving at $3.70 \mathrm{~m} / \mathrm{s}$, calculate their velocities after the collision, and before collision.

Draw and name alkanes that meet the following descriptions: (a) A 5-carbon alkane with a tertiary carbon atom (b) A 7-carbon alkane that has both a tertiary and a quaternary carbon atom

Three major issues are addressed by psychologists in the study of human development. Identify and state how all three might explain how children's traits and abilities develop.