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Questions Asked on November 9, 2009

"How many grams of NH3 can be produced from the reaction of 28 g of N2 and 25 g of H2?N2 + 3H2 ---> 2NH3 ==> 28 g N2 x (1 mol
1. 11 answers
2. asked by Emily
3. 27,985 views
A 2.2 m-long string is fixed at both ends and tightened until the wave speed is 50 m/s.What is the frequency of the standing
1. 5 answers
2. asked by Unknown
3. 5,320 views
A sample of a radioactive substance decayed to 93.5% of its original amount after a year.a) What is the half-life of the
1. 2 answers
2. asked by Lee
3. 5,075 views
Wile E. Coyote is holding a “HEAVY DUTY ACME ANVIL” on a cliff that is 40.0 meters high. The Roadrunner (beep-beep), who is
1. 4 answers
2. asked by Jin
3. 4,957 views
Which pair of molecules has the strongest dipole-dipole interactions?a- CO2 and CO2 b- CO2 and CH4 c- NH3 and NH3 d- NH3 and CH4
1. 2 answers
2. asked by Casey
3. 3,963 views
A child throws a snowball at a tree and it sticks to the tree. Does this motion defy the Law of Conservation of Momentum?
1. 3 answers
2. asked by Jon
3. 3,607 views
24.Which of the following is characteristic of the organizational buying process?A)Multiple parties participate in purchase
1. 6 answers
2. asked by Bryan
3. 3,330 views
on heating the hydrate CaSO4*2H2O, how many moles of water should be driven off per mole of hydrate?1 mole?
1. 2 answers
2. asked by c
3. 2,699 views
How many liters of hydrogen at STP can be produced by the reaction of 4.15 g of zinc with hydrochloric acid:Zn + 2HCl -> ZnCl2 +
1. 4 answers
2. asked by Julie
3. 2,680 views
In music, What does "allegro" mean?ALGEBRA WITH PIZZAZZ!
1. 9 answers
2. asked by Naia
3. 2,535 views
Write an equation for the line perpendicular to line XY that contains point Z.line XY: 3x + 2y = -6, Z(3,2) I realize that the
1. 2 answers
2. asked by Heather
3. 2,390 views
Angle x is in the second quadrant and angle y is in the first quadrant such that sinx=5/13 and cosy=3/5, determine and exact
1. 3 answers
2. asked by Jenn
3. 2,340 views
If x2 + y2 = 100 and dy/dt = 3, find dx/dt when y = 8.
1. 3 answers
2. asked by Bryan
3. 2,276 views
The ability to roll the tongue (R) is determined by a dominant gene while the recessive gene results in the inability to roll
1. 3 answers
2. asked by Liam
3. 2,216 views
Which represents the largest pressure?A)five mmHg B)one atmosphere C)one millimeter of mercury D)one hundred pascals E)five
1. 1 answer
2. asked by Holly
3. 2,161 views
Write an equivalent fraction for 6/8
1. 5 answers
2. asked by Bradley
3. 2,104 views
A car is parked near a cliff overlooking the ocean on an incline that makes an angle of 29.1◦ with the horizontal. The
1. 3 answers
2. asked by Anonymous
3. 2,072 views
The concept of free energy allows prediction of spontaneity of a process by considering thechanges in ________ and ________
1. 1 answer
2. asked by brandy
3. 1,933 views
A bacteria culture starts with 260 bacteria and grows at a rate proportional to its size. After 4 hours there will be 1040
1. 1 answer
2. asked by aman
3. 1,878 views
A monopolist has a constant marginal and average cost of $10 and faces a demand curve of QD = 100 - 10P. Marginal revenue is
1. 2 answers
2. asked by too old
3. 1,871 views
Question:which is an example of excretion? a) release of sweat from the sweat glands b) removal of carbondioxide from the lungs
1. 1 answer
2. asked by biology
3. 1,865 views
Write an equivalent fraction for 12/36 =
1. 8 answers
2. asked by Bradley
3. 1,847 views
In a mountain-climbing technique called the "Tyrolean traverse," a rope is anchored on both ends (to rocks or strong trees)
1. 2 answers
2. asked by Taylor
3. 1,623 views
Sound is detected when a sound wave causes the eardrum to vibrate. Typically, the diameter of the eardrum is about 8.4 mm in
1. 2 answers
2. asked by Unknown
3. 1,606 views
How much energy is contained in 1 mol of each of the following?X-ray photons with a wavelength of 0.175 nm. Gamma-ray photons
1. 2 answers
2. asked by Wessells
3. 1,602 views
if you heat 15.00g of the hydrate CaSO4*2H20, and drive off the water, what is the weight of the anhydrous salt remaining?How do
1. 3 answers
2. asked by c
3. 1,574 views
what volume of nitrous oxide gas, N2O has the same number of atoms as 9.00 L of neon gas at the same temperature and pressure
1. 2 answers
2. asked by Rodney
3. 1,559 views
CaSO4.2H2O ==> CaSO4 + 2H2Omoles CaSO4.2H2O = 15.00 g x (1 mole CaSO4.2H2O/172.172) = 0.08712 moles. moles CaSO4 = same. grams
1. 2 answers
2. asked by c
3. 1,482 views
I need to find the critical number of 4x^3-36x^2+96x-64 by factoring. Basically I need to know the zeros.
1. 4 answers
2. asked by Matt
3. 1,478 views
Perform each of the following conversions, being sure to set up clearly the appropriate conversion factor in each case.2.23 m to
1. 4 answers
2. asked by Jake
3. 1,467 views
Consider three one-liter flasks labeled A, B, and C filled with the gases NO, NO2, and N2O, respectively, each at STP.Which
1. 2 answers
2. asked by Anonymous
3. 1,395 views
Given the roots, 1/2 and 4, find:(A) The quadratic equation 2x^2-9x+4 ? (B) The sum of the roots 4 1/2, or 9/2 (C) The product
1. 2 answers
2. asked by A.
3. 1,373 views
An astronaut stands on the edge of a lunar crater and throws a half-eaten Twinkie™ horizontally with a velocity of 2.2 m/s.
1. 1 answer
2. asked by Katie
3. 1,348 views
Consider the reaction shown:452 kcal + 4 PCl5 (s) �¨ P4 (s) + 10 Cl2(g) This reaction is ________ because the sign of ƒ¢H is
1. 2 answers
2. asked by brandy
3. 1,340 views
Two people carry a heavy electric motor by placing it on a light board 2.00 m long. One person lifts at one end with a force of
1. 1 answer
2. asked by Student1
3. 1,337 views
a sandbag is dropped from a balloon at a height of 60 meteres when the angle of eleveation to the sun is 30 degrees. find the
1. 1 answer
2. asked by Anonymous
3. 1,314 views
1. How many molecules of ammonia, NH3, are produced from 12.5 grams of hydrogen in the following balanced equation?
1. 2 answers
2. asked by shamisha
3. 1,287 views
P4 (s) + 10 Cl2 (g) �¨ 4 PCl5 (s) ƒ¢H = -435.2 kcalBased on the reaction shown, which statement is true? A) When 30.97 g P4
1. 1 answer
2. asked by brandy
3. 1,273 views
I am to make an edible cell. It can be either a plant or animal cell. I was wondering if anyone had some unique ideas. I know
1. 2 answers
2. asked by 1234
3. 1,262 views
Given a 10.0g sample of MgCO3*5H2O, what weight of anhydrous magnesium carbonate can be obtained after driving off the water?The
1. 1 answer
2. asked by c
3. 1,259 views
should a president and vice president die does the secretary of state stand next in line to take over the presidency?
1. 1 answer
2. asked by Anonymous
3. 1,250 views
How can I find the key passages in the short story Marigolds, to develop the theme of the story. I have to use quotes from the
1. 6 answers
2. asked by mysterychicken
3. 1,240 views
I have to answer a few questions about the essay Ralph Waldo Emerson From Education. (a copy of it is provided on google when
1. 0 answers
2. asked by anonymous
3. 1,237 views
Label each clause subordinate or independent.1. If you visit the city of Chicago.subordinate 2.the Art Institute of Chicago is
1. 1 answer
2. asked by Christ
3. 1,230 views
Sound is detected when a sound wave causes the eardrum to vibrate. Typically, the diameter of the eardrum is about 8.4 mm in
1. 1 answer
2. asked by Ana
3. 1,189 views
14 during the great fire (independent15 After industries were rebuilt(subordinate
1. 1 answer
2. asked by Christ
3. 1,167 views
calculate the percent water in CaSO4*2H2020.9%?
1. 1 answer
2. asked by c
3. 1,164 views
I need help setting up this problem: A 5.0 sample of O2 is in a container at STP. What volume is the container and how many
1. 1 answer
2. asked by alexis
3. 1,104 views
Tom,Ted,Tony,Terry worked together on a job.The job paid $500.Each boy was paid according to the amount of work he contributed
1. 1 answer
2. asked by Katherine
3. 1,102 views
N2 + O2 �¨ 2 NO ƒ¢H = 43.2 kcalBased on the reaction shown, which statement is true? A) 43.2 kcal are consumed when 1.00 g
1. 2 answers
2. asked by brandy
3. 1,065 views
should a president and vice president die does the secretary of state stand next in line to take over the presidency?
1. 1 answer
2. asked by Anonymous
3. 1,053 views
Would it be possible to separate hexane (b.p. 68.95 degrees Celsius) from toluene (b.p. 110.6 degrees Celsius) by simple
1. 1 answer
2. asked by Apple
3. 1,018 views
please can someone help me with these questions?24) Which represents the largest pressure? A) five mm Hg B) one atmosphere C)
1. 1 answer
2. asked by brandy
3. 1,014 views
Given a 10.0g sample of MgCO3*5H2O, what weight of anhydrous magnesium carbonate can be obtained after driving off the water?84.
1. 3 answers
2. asked by c
3. 948 views
Which has more momentum, a speeding baseball or an ocean liner at rest in a harbor?Baseball. Ocean liner. Both the same. Can't
1. 2 answers
2. asked by Monique
3. 939 views
A plane flying horizontally at an altitude of 1 mi and a speed of 510 mi/h passes directly over a radar station. Find the rate
1. 2 answers
2. asked by Peter
3. 932 views
A propane tank is in the form of a cylinder with two half-spheres, one on each end. The radius of the cylinder is the same as
1. 1 answer
2. asked by kimama
3. 892 views
To: Napoleon BonaparteFrom: Sara, Senior Advisor Subject: Continental System 1. Advantage for Britain: None Disadvantages for
1. 1 answer
2. asked by Sara
3. 885 views
1. simplify by removing the parenthses and collecting like terms. 83q - (39q-38)=44q+38?2. solve for y---z=ym answer y=z/m? 3.
1. 8 answers
2. asked by Nashea
3. 884 views
The ability to roll the tongue (R) is determined by a dominant gene while the recessive gene results in the ability to roll the
1. 1 answer
2. asked by liam
3. 883 views
What weight of NaOH would be required to prepare 3000 ml of a 2.5M solution?
1. 2 answers
2. asked by Tamaka
3. 878 views
ok, after i posted this yesterday:ok, now that i have my pet peeve, i have to fill out this sheet. (please read my earlier post
1. 7 answers
2. asked by y912f
3. 867 views
How many liters of hydrogen at STP can be produced by the reaction of 4.15 g of zinc with hydrochloric acid:Zn + 2HCl -> ZnCl2 +
1. 1 answer
2. asked by Christina
3. 860 views
The height of a rocket fired vertically into the air from the ground is given by the formula h(t) = -16t (2nd power) + 384t + 4,
1. 1 answer
2. asked by Pat
3. 850 views
How did geography help the romans prosper
1. 5 answers
2. asked by Rakeem
3. 839 views
A spotlight on the ground shines on a wall 12 m away. If a man 2 m tall walks from the spotlight toward the building at a speed
1. 2 answers
2. asked by Peter
3. 838 views
why did the us want to build a canal across panama 2 how did the us gain control of the panama canal zone 3 how did the people
1. 1 answer
2. asked by sophie
3. 822 views
If the temp of a quanity of gas changes from 100C to 200C will the volume of the gas double if the pressure remains constant?I
1. 2 answers
2. asked by Amy
3. 820 views
Need help with texas history -what were the illegal immigants called?I really need help! I am doing a treasure hunt where our
1. 9 answers
2. asked by beth
3. 815 views
Compare mitosis and meiosis by completeing the chart.Mitosis- Meiosis-homologous chromosomes pair and then separate Mitosis-
1. 0 answers
2. asked by Bob
3. 813 views
'A surprise ending to a short story only works when the ending is believable. The writer must carefully prepare readers for what
1. 1 answer
2. asked by mysterychicken
3. 805 views
Two men are carrying a 9.00-m telephone pole that has a mass of 115 kg. If the center of gravity of the pole is 3.00 m from the
1. 2 answers
2. asked by sandhu
3. 796 views
Janet jumps off a high diving platform witha horizontal velocity of 2.22 m/s and lands in the water 1.5 s later. The
1. 1 answer
2. asked by Anonymous
3. 790 views
Tom,Ted,Tony,Terry worked together on a job.The job paid $500.Each boy was paid according to the amount of work he contributed
1. 2 answers
2. asked by Katherine
3. 774 views
1.what was the Pickney treaty?2.why did president jefferson want to buy new orleans from france? 3.why was napoleon willing to
1. 1 answer
2. asked by sakura
3. 773 views
A man is standing 35 m from a building. On top of the building is a flg. From the man, the angle of elevation of the top of the
1. 1 answer
2. asked by Anonymous
3. 766 views
Which of the following would be most likely to be paid from petty cash?a. coffee for the staff, b. rent for the office, c. the
1. 1 answer
2. asked by MARIA
3. 755 views
i don't get it ....Tom,Ted,Tony,Terry worked together on a job.The job paid $500.Each boy was paid according to the amount of
1. 1 answer
2. asked by Katherine
3. 753 views
Suppose f(x)= e^(-1/x). Graph this function in the window -5(</=)x(</=)5 and 0(</=)y(</=)10. Find the tangent line to y = f(x)
1. 2 answers
2. asked by George
3. 747 views
A uniform 250 N ladder rests against a perfectly smooth wall, making a 35 degree angle with the wall. (a)Draw a free body
1. 1 answer
2. asked by collegekid
3. 733 views
A hospital has 30 labor rooms, 15 combination labor and delivery rooms, 3 delivery rooms, and 1 special delivery room reserved
1. 0 answers
2. asked by Danielle
3. 731 views
8 m_____________ |\ | 4 m | \ Garden| | \ | | floor \ | -------------- 8m I need help finding the area of the garden and the
1. 0 answers
2. asked by Abby
3. 726 views
Please check my sentences. Thank you!?El arroyo es como un pequeño río. Nosotros estuvimos toda la noche asando carne de vaca.
1. 1 answer
2. asked by hh
3. 721 views
Water is exposed to infrared radiation of wavelength 3.0×10^−4 cm. Assume that all the radiation is absorbed and converted to
1. 1 answer
2. asked by Kyle
3. 720 views
What strategies may you use to incorporate effective visual elements into business presentations? When have you ever sat through
1. 1 answer
2. asked by charlotte
3. 709 views
Rita won $60 million lottery. She is to receive $1 million a year for the next 50 years plus an additional lump sum of $10
1. 0 answers
2. asked by Lawrence
3. 705 views
Using the financial statements for the Goodyear Calendar Company, calculatethe 13 basic ratios found in the chapter. December
1. 0 answers
2. asked by jeff
3. 694 views
Which has more momentum, a speeding baseball or an ocean liner at rest in a harbor?Baseball. Ocean liner. Both the same. Can't
1. 1 answer
2. asked by Monique
3. 686 views
'What signifigance did the title have in the short story Marigolds?'This is my answer: The title of the short story, Marigolds,
1. 4 answers
2. asked by mysterychicken
3. 682 views
Why is television called a communications medium?
1. 2 answers
2. asked by Patrick
3. 679 views
If the current exchange rate is US$1 equals € .70, how much did you win in US dollars?Suppose that the interest rate in Irish
1. 3 answers
2. asked by Jcalhoun
3. 679 views
How did Native Americans react to Ponce De Leon's attempts to settle in Florida?
1. 1 answer
2. asked by henry
3. 661 views
If there are 7.5 gallons to the cubic foot, and a spherical storage tank has a radius of 19.5 ft, then using 3.14159 for p ,how
1. 1 answer
2. asked by kimama
3. 661 views
The following two financial statements—a statement of activities (profit and losssummary) and a statement of financial
1. 1 answer
2. asked by hello
3. 657 views
1. What percent of 120 is 48? 57.6%?2. collect like terms. 17T + T + 15/13T= 249/13T? 3. solve using the principles together.
1. 2 answers
2. asked by Nashea
3. 655 views
Use a centimeter ruler and separate sheet of paper to draw am 8 cm. by 6 cm. rectangle. List its perimeter on the table below.
1. 1 answer
2. asked by Vickie
3. 654 views
Judy, by chance, spots a potted plant falling outside the window at 3.84 m/s . Further down the same building, Judy boyfriend
1. 1 answer
2. asked by Anonymous
3. 649 views
Use the discriminant to determine how many real-number solutions the equation has.v^2 - 7v + 5 = 0
1. 0 answers
2. asked by chandice
3. 644 views
Why did the british fight against the turks in 1915?
1. 3 answers
2. asked by Anonymous
3. 644 views
On the same subject as before with the limiting/excess reagent stuff -- can someone please check my answer to make sure I'm
1. 1 answer
2. asked by Emily
3. 640 views

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