Explain why water has a higher surface tension than benzene, whose molecules are nonpolar.

Solve by substitution.

$$\begin{aligned} 6 x-4 y&=3\\ 3 x-2 y&=9 \end{aligned}$$

How should you treat a patient whose arm is covered with a dry chemical?

Fill in the blank for the given suffix.

-um $\quad\rule{3cm}{0.15mm}$

Medical terms:

a. flow

b. action

c. inflammation

d. tissue

e. pertaining to

f. condition

g. excision

h. quality of

i. study of

In Problem 13.4 on page 439, the percentage of alcohol was used to predict wine quality (stored in Vinho Verde). For those data, SSR = 21.8677 and SST = 64.0000.

a. Determine the coefficient of determination, $r^2$, and interpret its meaning.

The experimental data shown tabulated were obtained by passing $n$-butyl alcohol at a bulk temperature of $15^{\circ} \mathrm{C}$ over a heated flat plate 0.3- $\mathrm{m}$ long, $0.9-\mathrm{m}$ wide, and with a surface temperature of $60^{\circ} \mathrm{C}$. Correlate the experimental data using appropriate dimensionless numbers and compare the line that best fits the data with Eq. $\overline{\mathrm{Nu}}_L=0.664 \operatorname{Re}_L^{1 / 2} \operatorname{Pr}^{1 / 3}$ . Velocity Average Heat Transfer Coefficient

Based on their composition and structure, list $CH_2Cl_2, CH_3CH_2CH_3,$ and $CH_3CH_2OH$ in order of increasing surface tension.

Pacific Gas and Electric Company is a large gas and electric utility operating in northern and central California. Three recent years of financial data for Pacific Gas and Electric Company are as follows:

$$\begin{array}{lccr} & \text{Year 3} & \text{Year 2} & \text{Year 1} \\ \hline \text{Net income} & \$ 830 & \$ 858 & \$ 1,113 \\ \text{Preferred dividends} & \$ 14 & \$ 14 & \$ 14 \\ \text{Average number of common shares outstanding} & 424 & 401 & 382 \end{array}$$

b. Evaluate the growth in earnings per share for the three years in comparison to the growth in net income for the three years.

The Limited Brands Inc. sells women’s clothing and personal health care products through specialty retail stores including Victoria’s Secret and Bath & Body Works stores. The Limited Brands reported the following (in millions) for two recent years:

$$\begin{array}{lcr} &\textbf{Year 2}&\textbf{Year 1}\\ \hline \text{Net sales}&\$9,613&\$8,632\\ \text{Accounts receivable}&267&249 \end{array}$$

Assume that accounts receivable (in millions) were $313 at the beginning of Year 1. a. Compute the accounts receivable turnover for Year 2 and Year 1. Round to one decimal place.

One-half of the adjusting entry is given below. Indicate the account title for the other half of the entry.

(e) Accounts Receivable is debited.

A 7-ft3 rigid tank contains propane at 1300 lbf/in.2, 540 F. The propane is then allowed to cool to 120 F as heat is transferred to the surroundings. Determine the quality at the final state and the mass of liquid in the tank, using the generalized compressibility chart.

How many atoms of hydrogen $\ce{(H)}$ are present in $200$ molecules of ammonia $\ce{(NH3)}$?

Review your results from the preceding exercise.

Requirements

1. Total each column of the cash receipts journal.
2. Open the following four-column accounts in the accounts receivable subsidiary ledger: Accounts Receivable-Dylan, Bal. $5,280; Accounts Receivable-Next, Bal.$2,250. Post the transactions to the accounts receivable subsidiary ledger.
3. Open the following selected four-column accounts in the general ledger: Cash (111), Bal. $4,550; Accounts Receivable (112), Bal.$7,530; Merchandise Inventory (118), Bal. $3,250; Sales Revenue (411), Bal.$25,000; Sales Discounts Forfeited (412); Interest Revenue (419); Cost of Goods Sold (511), Bal. $14,500. Post the total of each column to the general ledger. Also, post the Other Accounts column to the general ledger.
4. Balance the total of the customer ending balances in the accounts receivable subsidiary ledger against Accounts Receivable in the general ledger.

Describe the general structure of water molecules at a temperature below freezing versus at 25$^\circ \mathrm{C}$, and name the primary type of bond between water molecules.