True/False: Candidate objects can be found by looking at the verbs in a problem description.

Distillers purify water by boiling contaminated water into purified steam and condensing the steam into a separate container. Suppose a distiller boils $10.0 \mathrm{~kg}$ of liquid water at $373.15 \mathrm{~K}$ into steam at the same temperature. Evaluate the water's change in entropy.

What is the half-life (in years) of ${ }^{44} \mathrm{Ti}$ if a $1.0 \mathrm{ng}$ sample decays initially at a rate of $4.8 \times 10^3$ disintegrations/s?

For the following exercises, solve the inequality. Write your final answer in interval notation.\

$$3 x+2 \geq 7 x-1$$

In a car engine, gasoline (represented by $\mathrm{C}_8 \mathrm{H}_{18}$ ) does not burn completely, and some $\mathrm{CO}$, a toxic pollutant, forms along with $\mathrm{CO}_2$ and $\mathrm{H}_2 \mathrm{O}$. If $5.0 \%$ of the gasoline forms $\mathrm{CO}$ :
(b) What is the mass ratio of $\mathrm{CO}_2$ to $\mathrm{CO}$ ?

After a fall, a 95 kilogram rock climber finds himself dangling from the end of a rope that had been 15 meters long and $9.6\text{~ mm}$ in diameter but has stretched by $2.8 \text{~cm}$. For the rope, calculate the Young’s modulus.

Why does NaBr dissolve in water?

The gas in the discharge cell of a laser contains (in mole percent) $11 \% \mathrm{CO}_2, 5.3 \% \mathrm{~N}_2$, and $84 \% \mathrm{He}$. (a) What is the molar mass of this mixture? (b) Calculate the density of this gas mixture at $32^{\circ} \mathrm{C}$ and $758 \mathrm{~mm} \mathrm{Hg}$. (c) What is the ratio of the density of this gas to that of air $(\mathrm{MM}=29.0 \mathrm{~g} / \mathrm{mol})$ at the same conditions?

Combine the verbs and objects given to create sentences using se.

servir / comida ______________________________________________

In this exercise, find $M_x, M_y$, and $(\bar{x}, \bar{y})$ for the laminas of uniform density $\rho$ bounded by the graphs of the equations.

$$y=x^2,y=x^3$$

At a camping site in July, $120$ families stayed for three or more days. The $120$ families represent three-eighths of all the families who stayed at the camping site in July.

How much greater is $40 \%$ compared to $\frac{3}{8}$ ? Write your answer in decimal form.

Identify each situation as a permutation or a combination.

choosing friends to invite to a party

For the following exercise,

Use the Binomial Theorem to write the first three terms of each binomial.

$$\left(x^3-\sqrt{y}\right)^8$$

Find the total mass of a thin sheet in the shape of a hemisphere with radius 2 for $z \geq 0$ with a density function $\rho(x, y, z)=x+y+z$.