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Tyler

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An equilibrium mixture at 852 K is found to contain 3.61*10^-3 mol/L of SO2, 6.11*10^-4 mol/L of O2, and 1.01*10^-2 mol/L of
1. 4 answers
2. 2,086 views
An aqueous solution of carbonic acid reacts to reach equilibrium as described below.H2CO3(aq) + H2O(l) <---> HCO3^-(aq) +
1. 2 answers
2. 825 views
The following reaction has an equilibrium constant (Keq) of 160.2 NO2(g) <--> 2 NO(g) + O2(g) What will be the reaction quotient
1. 1 answer
2. 844 views
The starting material in this synthesis experiment Fe(NH4)2(SO4)2*6H2O. What is the ionic charge of the atom? Show your
1. 2 answers
2. 610 views
Using a coil made of 117 turns of single-strand copper wire, you use a motor to rotate the coil at a constant angular speed of
1. 0 answers
2. 882 views
If air resistance is neglected, a falling object travels 13 ft during the first second, 39 ft during the next, 65 ft during the
1. 4 answers
2. 580 views
Write the following comparison as a ratio reduced to lowest terms. 25 nickels to 38 dimes?
1. 1 answer
2. 982 views
y = (x^2+2x-5) (x^3+3x^2-40x)Find the zeros ( 5 total zeros ) x = x = x = x = x = So would it be easier for me to distribute
1. 2 answers
2. 600 views
The total cost, in millions of dollars, of producing x thousand units of an item is C(x) = 4(x − 1)^2 + 4.The revenue (in
1. 2 answers
2. 1,351 views
Describe in words the long run behavior as x approaches infinity of the functiony = 6x^6 + (4x^4/x^-9) -9x^7+3 I know y goes to
1. 1 answer
2. 1,144 views
I need chemistry help. I think 1. c, 2.b, & 3.a (please tell me why or why not and help me set up the problems if possible)1.)
1. 2 answers
2. 1,046 views
how many moles of BaCl2 are in 300 g of H2O if the molality is 0.2 m?
1. 1 answer
2. 531 views
Random samples of size n = 90 were selected from a binomial population with p = 0.4. Use the normal distribution to approximate
1. 1 answer
2. 1,202 views
An urn contains 3 red, 4 orange, and 6 yellow marbles. 2 marbles are selected without replacement. Find the probability that the
1. 1 answer
2. 497 views
Molecular, ionic, and net ionic equations for ammonium chloride + potassium sulfate. Also what is the observation.Is it 2NH2Cl +
1. 1 answer
2. 1,137 views
A 22.0 g piece of alloy at 264.8°C is dropped into a simple calorimeter that contains 175.0 g of water. The temperature of the
1. 0 answers
2. 517 views
"The King of Mazy May" by Jack LondonWhich detail helps you predict that Walt will face a series of unfortunate events? a)
1. 5 answers
2. 5,050 views
how can you determine that a coin is not pure silver if you know the mass and volume of the coin?
1. 3 answers
2. 1,232 views
x^(log10x)=100I'm not sure how to do this at all...
1. 1 answer
2. 836 views
An item is on sale for $12, which is at a discount of 20% off the original price. What is the original price?How do I do this
1. 1 answer
2. 439 views
I'm writing a synthesis paper about why we should utilize middle-out economics (basically economics that focus on the middle
1. 1 answer
2. 788 views
Two resistors 3ohms and 6ohms are connected in parallel across a 6V battery, what is the current flow through the 3ohms
1. 4 answers
2. 586 views
Is the topic of Immigration Reform in the United States to controversial for my synthesis essay?I am writing a synthesis essay
1. 2 answers
2. 567 views
A person of mass 50.0 kg is at the bottom of a cave. The cave has a depth of 32.5 meters and the person is to be pulled out of
1. 1 answer
2. 574 views
Solve (z +2)^ 4/3 = 4 where z is a real number
1. 1 answer
2. 378 views
Using a table of standard electrode potentials (such as the one in your textbook), calculate thestandard cell potential for a
1. 3 answers
2. 1,728 views
A box of mass 1.50 kg is given an initial velocity of 12.5 m/s up an inclined ramp that makes an angle of 25.0o with the ground,
1. 2 answers
2. 1,118 views
In recent years, there has been a lot of media coverage about the funding status of pension plans for state employees. In many
1. 0 answers
2. 685 views
A saturated solution of magnesium iodate has a temperature of 50°C. it contains 175g of dissolved solute. What is the volume of
1. 2 answers
2. 544 views
At what temperature (∘C) will xenon atoms have the same average speed that Cl2 molecules have at 35∘C?
1. 0 answers
2. 710 views
Methane gas, CH4, is sold in a 43.0L cylinder containing 5.91kg .What is the pressure inside the cylinder (in kilopascals) at
1. 1 answer
2. 668 views
Traffic on the German autobahns reaches speeds of up to 230 km/h.At what temperature (∘C) do oxygen molecules have this same
1. 2 answers
2. 681 views
What is the molecular mass of a gas that diffuses through a porous membrane 1.86 times faster than Xe?
1. 1 answer
2. 1,525 views
An unknown gas is placed in a 1.500 L bulb at a pressure of 356 mm Hg and a temperature of 22.5 ∘C, and is found to weigh
1. 2 answers
2. 2,663 views
A small cylinder of helium gas used for filling balloons has a volume of 2.85L and a pressure of 13300kPa at 25 ∘C.How many
1. 1 answer
2. 1,572 views
Oxygen gas is commonly sold in 48.0L steel containers at a pressure of 130atm .What volume (in liters) would the gas occupy if
1. 1 answer
2. 521 views
An airplane needs to fly due south. The plane can fly at a speed of 720.0 km/hr in still air. If there is a wind blowing to the
1. 1 answer
2. 732 views
NH4NO3(s)+H2O(l)→NH4NO3(aq) ΔH = +25.7 kJ.What is the final temperature in a squeezed cold pack that contains 45.5g of NH4NO3
1. 1 answer
2. 1,413 views
Calculate ΔH∘f (in kilojoules per mole) for benzene, C6H6, from the following data:2C6H6(l)+15O2(g)→12CO2(g)+6H2O(l) ΔH∘
1. 1 answer
2. 1,453 views
Assuming that the specific heat of the solution is 4.18 J/(g⋅∘C) and that the calorimeter itself absorbs a negligible amount
1. 1 answer
2. 3,853 views
Can someone please work out the steps in solving this elimination problem. Thank you.The problem is x + 2y = -7 x - 5y = 7
1. 1 answer
2. 500 views
What were the results of the Korean War?What impact did it have on American society?
1. 1 answer
2. 615 views
Solve by eliminationx + 2y = -7 x - 5y = 7
1. 1 answer
2. 749 views
John is driving at a constant speed of 20.0 m/s when he passes Jane, who is traveling in the same direction at 15.0 m/s at the
1. 2 answers
2. 714 views
A crate begins sliding down a frictionless incline of 25.0o. If the objects begins sliding from rest and takes 1.50 sec to slide
1. 0 answers
2. 504 views
John is driving at a constant speed of 20.0 m/s when he passes Jane, who is traveling in the same direction at 15.0 m/s at the
1. 0 answers
2. 674 views
Draw each of the following vectors on graph paper, then find the x- and y- components. Make sure to include units in your
1. 1 answer
2. 1,869 views
Two full 48-gallon tanks begin draining at t = 0. Tank Alpha's volume is changingat a constant rate of -16/5 gal/min. The rate
1. 4 answers
2. 632 views
A cubic meter of some material has a mass of 6400 kg. The block of material is lowered into a lake by a strong cable until the
1. 1 answer
2. 1,052 views
A 2 kg ball is rolled down a hill 25 m tall. When it reaches the bottom of the hill it is traveling at 15.1 m/s. How much energy
1. 0 answers
2. 462 views
an unpolarised light is incident on the boundary between two transparent media. State the contition when the reflected wave is
1. 0 answers
2. 489 views
It takes 56 J to push a block 4 m. If the force is in the same direction as the displacement, what is the force on the block?
1. 1 answer
2. 440 views
1) In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles shown in the
1. 0 answers
2. 981 views
Can someone help me to solve this scientific notation equation.(5.7 x 10^3)^-^4
1. 2 answers
2. 415 views
A car accelerates from 12m/s to 25m/s in 6.0s. What is its uniform acceleration? How far did it travel in this time?
1. 1 answer
2. 5,310 views
A plane flies 407 km east from city A to city B in 44.0 min and then 871 km south from city B to city C in 1.90 h. For the total
1. 0 answers
2. 514 views
Determine if the following are probability distributions (if no, state why).a. X 3 6 9 12 15 P(X) 4/9 2/9 1/9 1/9 1/9
1. 1 answer
2. 1,058 views
What does the empirical rule say about the proportionof players who are between 62.7 inches and 75.3 inches? c.
1. 1 answer
2. 463 views
The treasurer of the student body at a college reported that the receipts from a recent contact totaled $916; Furthermore, he
1. 2 answers
2. 2,050 views
Snooki has a total of 25 quarters and pennies in her pocket. She has $2.32 altogether. How many quarters and pennies were sold?
1. 3 answers
2. 447 views
Which of the following was a result of the development of Christianity in the Byzantine empire?
1. 0 answers
2. 610 views
Suppose the following data are selected randomly from a population of normally distributed values.42 51 43 48 41 57 54 39 45 48
1. 1 answer
2. 2,907 views
1) A dog has the same mass for 3 years. State whether this represents an equilibrium or steady state situations, and give your
1. 1 answer
2. 1,709 views
For the reactionZn(OH)2(s)+4CN-(aq)->Zn(CN)4 2-(aq)+2OH-(aq) find [CN-] when 8.5 g of Zn(OH)2 are dissolved in 1.00 L of
1. 1 answer
2. 384 views
a .150kg object tied to a string is whirled in a horizontal circle ata constant angular speed of 3.50 revolutions per second.
1. 0 answers
2. 458 views
A "swing" ride at a carnival consists of chairs that are swung in a circle by 19.8 m cables attached to a vertical rotating
1. 0 answers
2. 912 views
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. People sit in seats
1. 0 answers
2. 446 views
A centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. Such a device is
1. 0 answers
2. 493 views
Calculate the number of hydrogen molecules formed when 5.6 mL of ammonia at STP is decomposed by the following reaction:___NH3
1. 3 answers
2. 404 views
Calculate the volume of oxygen at STP required to burn 3.7 kg C3H6O2 producing CO2 & H2O:
1. 1 answer
2. 400 views
Maria has two piggy banks. In one piggy bank she saves dimes and in the other she saves nickels. At the end of each month she
1. 1 answer
2. 490 views
a student is given a 10 gram sample of gold that has a density of 19.32g/cm3. The student is then given a 5 gram sample of an
1. 1 answer
2. 644 views
How to evaluate x=0 and dx=-.03? I got(1/9)e^(x/9)dx as dy of e^(x/9)and I don't know how I should plug them in.
1. 2 answers
2. 308 views
Let y=e^(x/9).a) Find the differential dy. dy = b) Evaluate dy if x=0 and dx=−0.03. dy =
1. 1 answer
2. 417 views
Find the linear approximation L(x) ofln(x) at the point a = 12.
1. 1 answer
2. 376 views
Find the equation of the tangent line to the curve (piriform)y^2=x^3(4−x) at the point (2,16−−�ã). a. Find dy/dx at x=2.
1. 2 answers
2. 1,193 views
Find the linear approximation L(x) ofln(x)at the point a = 12.
1. 1 answer
2. 368 views
The radius of a circular disk is given as 51 cm with a maximum error of 0.04 cm.Use differentials to estimate the maximum error
1. 0 answers
2. 558 views
Evaluate the following limit, if it exists:lim h-->0 ((sqrt9+h)-3/(h)
1. 1 answer
2. 964 views
Oscar Corporation is planning to construct an elliptical gate at its headquarters. The width of the ellipse will be 5 feet
1. 3 answers
2. 2,208 views
Thimerosal is an organic compound (gram molecular mass = 404.8 g/mol) used to inhibit bacterial growth. A .100%solution of
1. 0 answers
2. 690 views
If You do 100 j of work to elevate a bucket of water,what is its gravitational potential energy relative to its starting
1. 2 answers
2. 1,423 views
500 calories of heat is added to 2.0 g of water at 80 degrees Celsius. How much steam is produced?
1. 1 answer
2. 630 views
write the metric unit of length that is reasonable. a door is about 1 blank wide
1. 1 answer
2. 372 views
A certain brand of cereal costs $3.25 per box before sales tax is added. When you buy 5 or more boxes of this cereal you receive
1. 1 answer
2. 3,554 views
What is the significance of the repetition of the word absurd in the play?
1. 5 answers
2. 1,899 views
1. Pentane gas (C5H12) combusts with oxygen gas (O2) to form water (H2O) and carbon dioxide (CO2). Write a balanced chemical
1. 2 answers
2. 1,476 views
A group of 132 students chose baseball and soccer as their favorite sports in the ratio of 3:8. How many students chose soccer
1. 1 answer
2. 1,215 views
At a festival, 2/7 of the number of girls was equal to 3/5 of the number of boys. There were 165 fewer boys than girls. How many
1. 6 answers
2. 3,160 views
Madison spent 5/8 of her savings on a microwave oven & a refrigerator. She used 4/7 of the amount she spent to buy the
1. 3 answers
2. 3,034 views
If you are asked to determine an object’s speed, what information must you have?A.distance and period of time B.distance and
1. 3 answers
2. 1,209 views
Does an object moving in the y direction have KE? If so if you apply a force in the Y direction will the velocity increase?
1. 1 answer
2. 485 views
Webcredible, a UK-based consulting firm specializ- ing in websites, intranets, mobile devices, and applications, conducted a
1. 1 answer
2. 696 views
What is one way in which the magnetic field is similar to the electric field and one way in which the magnetic field is
1. 0 answers
2. 384 views
Trial #1 Trial #2 Trial #3Mass: gelatin capsule (g) .123 .118 .122 Mass: whole alka-seltzer tablet (g) 3.230 3.230 3.230 Mass:
1. 3 answers
2. 1,285 views
The experimental data you entered is:Trial #1 Trial #2 Trial #3 Mass: gelatin capsule (g) .123 .118 .122 Mass: whole
1. 3 answers
2. 800 views
A photocell shows photoelectric effect when green light shines on it. Which of the following is correct if a green light is
1. 2 answers
2. 684 views
A photocell shows photoelectric effect when green light shines on it. Which of the following is correct if a green light is
1. 1 answer
2. 1,298 views
A photocell shows photoelectric effect when green light shines on it. Which of the following is correct if a green light is
1. 0 answers
2. 753 views
How many 2/3 are in 3/4?
1. 0 answers
2. 270 views

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