For each of the following pairs of ions, write the symbol for the formula of the compound they will form. (a) $\mathrm{Ca}^{2+}, \mathrm{S}^{2-}$ (b) $\mathrm{NH}_4^{+}, \mathrm{SO}_4^{2-}$ (c) $\mathrm{Al}^{3+}, \mathrm{Br}^{-}$ (d) $\mathrm{Na}^{+}, \mathrm{HPO}_4^{2-}$ (e) $\mathrm{Mg}^{2+}, \mathrm{PO}_4^{3-}$

Predict the number of vertices and faces on each closo-borane. a. $\mathrm{B}_{4} \mathrm{H}_{4}^{2-}$ b. $\mathrm{B}_{9} \mathrm{H}_{9}^{2-}$

Which of the following best describes inpatient drug treatment facilities?

a. They are mainly for individuals with mental or medical disorders.

b. They treat patients for 4-8 hours a day, but the patient lives at home.

c. They are long-term facilities that also provide job and career training

d. They are separate from hospitals and other medical facilities.

Express the sums in sigma notation. The form of your answer will depend on your choice for the starting index. $1+2+3+4+5+6$

Graph each function. Based on the graph, state the domain and the range and find any intercepts.

$$f(x)=\left\{\begin{array}{ll}{\ln x} & {\text { if } 0<x<1} \\ {-\ln x} & {\text { if } x \geq 1}\end{array}\right.$$

Find the reciprocal.

$$3 \frac{1}{2}$$

The reciprocal of a whole number is a fraction with __________ in the numerator.

The nurse is reviewing the medication history of a patient who is taking hydroxychloroquine. However, the patient’s chart does not reveal a history of malaria or travel out of the country. The patient is most likely taking this medication for what
a. Plasmodium.
b. thyroid disorders.
c. roundworms.
d. rheumatoid arthritis.

Examine the shape of the horizon at the Apollo 17 landing site. What processes shape mountains on Earth that have not affected mountains on the Moon?

Graph the set of all real numbers less than or equal to 2 .

What is the rationale for using drugs such as B2 agonists, acetylcholine antagonists, leukotriene inhibitors, corticosteroids, and mast cell stabilizers to manage obstructive pulmonary disorders?

The chemical factors that determine traits are called

a. chromosomes.

b. genes.

c. traits.

d. characters.

Find the reciprocal of the number.

-1/5

Circle the letter of the sentence in which the word in bold-faced type is used incorrectly.

a. In a monopoly, power is held on the basis of majority rule.

b. One student seems to monopolize every class discussion.

c. During the eighteenth century the British held an absolute monopoly on trade with the American colonies.

d. By gaining a monopoly in the steel industry, a few financiers virtually controlled the nation's economy.