Complete the sentence in a way that shows you understand the meaning of the italicized vocabulary word.

The Center for Disease Control quarantined the person with a virulent strain of Anthrax before the disease ...

Find $\mathbf{C o m p}_{\mathbf{b}}$ a and $\mathbf{p} \mathbf{r} \mathbf{o} \mathbf{j}_{b}$ a. $\mathbf{a}=\langle 2,1\rangle, \mathbf{b}=\langle 3,4\rangle$

Give the word derived from Greek and/or Latin elements that matches given of the following. Verify your answer in a medical dictionary. Note that the wording of the dictionary definition may vary from the wording below.
Development of fibrous tissue ________________

Identify the word that is most different in meaning from the others.

path, course, trajectory, perimeter

Answer the following:

• a. Describe the basic characteristics of individual medical insurance.
• b. Why deductibles and coinsurance are used in medical expense policies?

Which of the fields are conservative, and which are not?

$$\mathbf { F } = ( x \mathbf { i } + y \mathbf { j } + z \mathbf { k } ) / \left( x ^ { 2 } + y ^ { 2 } + z ^ { 2 } \right) ^ { 3 / 2 }$$

Why is ice less dense, than water?

The vertices of $\triangle D E F$ are $D(0,0), E(0,7)$, and $F(6,3)$. Find the coordinates of the orthocenter of $\triangle D E F$.

Wilcox Electronics uses a sales journal, a purchases journal, a cash receipts journal, a cash disbursements journal, and a general journal as illustrated in this chapter. Wilcox recently completed the following transactions a through h. Identify the journal in which each transaction should be recorded.

_____b. Purchased shop supplies on credit.

Calculate $\Delta H$ for the reaction

$$\mathrm{N}_{2} \mathrm{H}_{4}(l)+\mathrm{O}_{2}(g) \longrightarrow \mathrm{N}_{2}(g)+2 \mathrm{H}_{2} \mathrm{O}(l)$$

given the following data:

$$\begin{array}{lr} \text{ } & {\Delta \mathbf{H}}\\ \text{Equation} & \text{(kJ)}\\ \hline {2 \mathrm{NH}_{3}(g)+3 \mathrm{N}_{2} \mathrm{O}(g) \longrightarrow 4 \mathrm{N}_{2}(g)+3 \mathrm{H}_{2} \mathrm{O}(l)} & \text{-1010}\\ {\mathrm{N}_{2} \mathrm{O}(g)+3 \mathrm{H}_{2}(g) \longrightarrow \mathrm{N}_{2} \mathrm{H}_{4}(l)+\mathrm{H}_{2} \mathrm{O}(l)} & \text{-317}\\ {2 \mathrm{NH}_{3}(g)+\frac{1}{2} \mathrm{O}_{2}(g) \longrightarrow \mathrm{N}_{2} \mathrm{H}_{4}(l)+\mathrm{H}_{2} \mathrm{O}(l)} & \text{-143}\\ {\mathrm{H}_{2}(g)+\frac{1}{2} \mathrm{O}_{2}(g) \longrightarrow \mathrm{H}_{2} \mathrm{O}(l)} & \text{-286}\\ \end{array}$$

How many absorptions would you expect to observe in the 13C NMR spectra of the following compounds? (a) 1,1-Dimethylcyclohexane (b) CH$_3$CH$_2$OCH$_3$ (c) tert-Butylcyclohexane (d) 3-Methyl-1-pentyne (e) cis-1,2-Dimethylcyclohexane (f) Cyclohexanone

Sulfuric acid ionizes in two steps in water solution. For the first ionization shown in the following equation, the

$$K_a$$

is so large that in moderately dilute solution the ionization can be considered 100%.

$$\mathrm { H } _ { 2 } \mathrm { SO } _ { 4 } + \mathrm { H } _ { 2 } \mathrm { O } \rightarrow \mathrm { H } _ { 3 } \mathrm { O } ^ { + } + \mathrm { HSO } _ { 4 } ^ { - }$$

The second ionization is fairly strong, and

$$K a = 1.3 \times 10 ^ { - 2 }$$

:

$$\mathrm { HSO } _ { 4 } ^ { - } + \mathrm { H } _ { 2 } \mathrm { O } \Longleftrightarrow \mathrm { H } _ { 3 } \mathrm { O } ^ { + } + \mathrm { S } \mathrm { O } _ { 4 } ^ { 2 - }$$

Calculate the total

$$\left[ \mathrm { H } _ { 3 } \mathrm { O } ^ { + } \right]$$

and pH of a 0.0788 M

$$\mathrm { H } _ { 2 } \mathrm { SO } _ { 4 }$$

solution. Hint: If the first ionization is 100%, what will

$$\left[ \mathrm { HS } \mathrm { O } _ { 4 } ^ { - } \right]$$

and

$$\left[ \mathrm { H } _ { 3 } \mathrm { O } ^ { + } \right]$$

be? Remember to account for the already existing concentration of

$$\mathrm { H } _ { 3 } \mathrm { O } ^ { + }$$

in the second ionization. Let x=

$$\left[ + \mathrm { SO } _ { 4 } ^ { 2 - } \right]$$

.

What products would you expect to obtain when ethyl propanoate reacts with each of the following? (a) $\mathrm{H}_{3} \mathrm{O}^{+}, \mathrm{H}_{2} \mathrm{O}$ (b) $\mathrm{HO}^{-}, \mathrm{H}_{2} \mathrm{O}$ (c) 1-Octanol, HCl (d) $\mathrm{CH}_{3} \mathrm{NH}_{2}$ (e) LiAlH $_{4},$ then $\mathrm{H}_{2} \mathrm{O}$ (f) Excess $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{MgBr},$ then $\mathrm{H}_{2} \mathrm{O}, \mathrm{NH}_{4} \mathrm{Cl}$

Compute: a. $\mathrm{e}^{\mathrm{i} \pi / 4}.$ b. $e^{i \pi / 2}.$ c. $\mathrm{e}^{\mathrm{i} \pi}$ d. $e^{i 2 \pi}$