The three types of activities that constitute distracted driving are

a. driving while intoxicated, driving while using prescription or over-the-counter medications, and drowsy driving.

b. speeding, tailgating, and running red lights.

c. taking your eyes off the road, taking your hands off the steering wheel, and taking your mind off driving.

d. texting, talking on a handheld cell phone, or fiddling with the radio while driving.

Steering rockets on the Space Shuttle are powered by the reaction of hydrazine, $\mathrm{N}_2 \mathrm{H}_4$, and dinitrogen tetraoxide, $\mathrm{N}_2 \mathrm{O}_4$. The reactions for making hydrazine and the reaction with dinitrogen tetraoxide are as follows.

$$\begin{aligned} 2 \mathrm{NH}_3(a q)+\mathrm{NaOCl}(a q) & \rightarrow \mathrm{N}_2 \mathrm{H}_4(a q)+\mathrm{NaCl}(a q)+\mathrm{H}_2 \mathrm{O}(l) \\ 2 \mathrm{~N}_2 \mathrm{H}_4(l)+\mathrm{N}_2 \mathrm{O}_4(l) & \rightarrow 3 \mathrm{~N}_2(g)+4 \mathrm{H}_2 \mathrm{O}(g) \end{aligned}$$

Starting with $50.0 \mathrm{~mL}$ of $6.00 \mathrm{M}$ ammonia and excess other reactants, calculate:

the volume of nitrogen gas produced at STP

Refer to the mentioned exercise of the said section. Suppose the initial bird populations on islands A, B, and C are 12,000,9000, and 14,000 , respectively.

(a) Represent the initial populations with a $1 \times 3$ matrix D. Represent the proportions of the populations that migrate to each island with a $3 \times 3$ matrix E.

(Hint: The first row of E is 0.90, 0.10, and 0.00- indicating that 90% of the birds on A stay on A, 10% of the birds on A migrate to B, and no birds on A migrate to C.)

(b) Find the product F=DE, and interpret the meaning of the elements of F.

(c) Using a computational device, multiply F times E, and continue to multiply the result by E until a pattern becomes apparent. What is your conclusion?

(d) Suppose the initial population matrix D is equal to

$$\left[\begin{array}{lll}34,000 & 500 & 500\end{array}\right]$$

. Multiply D times E, and continue to multiply the result by E until a pattern becomes apparent. What is your conclusion?

Use the results of earlier Problem to show that an increase in a (the increase in prey death per predator present) reduces predator abundance, but has no effect on the equilibrium abundance of the prey.

Calculate the equilibrium constant at $25^{\circ} \mathrm{C}$ for the reaction
$\mathrm{Hg}_2^{2+}(a q) \longrightarrow \mathrm{Hg}(l)+\mathrm{Hg}^{2+}(a q)$.

How does the stranger help Midas reverse the curse of the golden touch?

Ask your classmate what he/she has in his/her backpack, then reverse roles. Which one of you is carrying around the most stuff?

You are driving on a highway in slippery road conditions, and your vehicle starts to skid toward the right shoulder. You should:

• A) Keep your front wheels pointed straight ahead while you skid sideways off the road, and then brake gently to a stop.
• B) Take your foot off the gas pedal and steer your vehicle in the direction of the skid, even if it means you will drive off the road.
• C) Keep steering toward your lane on the road, even if you are skidding off the road sideways or backward.

Which of these is a consequence of speeding?
A. Increased braking distance
B. Less wear on tires
C. Improved steering
D. Avoidance of bad drivers

How can you tell when you are positioned properly behind the steering wheel?

For drivers over age 21, how is driving while intoxicated (DWI) defined?

Where is the steering nozzle located on a pwc?

Steering rockets on the Space Shuttle are powered by the reaction of hydrazine, $\mathrm{N}_2 \mathrm{H}_4$, and dinitrogen tetraoxide, $\mathrm{N}_2 \mathrm{O}_4$. The reactions for making hydrazine and the reaction with dinitrogen tetraoxide are as follows.

$$\begin{aligned} 2 \mathrm{NH}_3(a q)+\mathrm{NaOCl}(a q) & \rightarrow \mathrm{N}_2 \mathrm{H}_4(a q)+\mathrm{NaCl}(a q)+\mathrm{H}_2 \mathrm{O}(l) \\ 2 \mathrm{~N}_2 \mathrm{H}_4(l)+\mathrm{N}_2 \mathrm{O}_4(l) & \rightarrow 3 \mathrm{~N}_2(g)+4 \mathrm{H}_2 \mathrm{O}(g) \end{aligned}$$

Starting with $50.0 \mathrm{~mL}$ of $6.00 \mathrm{M}$ ammonia and excess other reactants, calculate:

the mass of nitrogen gas produced

The value of $K_{\mathrm{sp}}$ for $\mathrm{PbCrO}_4(s)$ in equilibrium with water at $25^{\circ} \mathrm{C}$ is $2.8 \times 10^{-13} \mathrm{M}^2$. Write the chemical equation that represents the solubility equilibrium for $\mathrm{PbCrO}_4(s)$ and calculate its solubility in grams per liter in water at $25^{\circ} \mathrm{C}$.