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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. 28,015 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. 5,340 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. 5,094 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. 4,971 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. 3,977 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. 3,630 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. 3,343 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. 2,713 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. 2,694 views
In music, What does "allegro" mean?ALGEBRA WITH PIZZAZZ!
1. 9 answers
2. asked by Naia
3. 2,549 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. 2,409 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. 2,361 views
If x2 + y2 = 100 and dy/dt = 3, find dx/dt when y = 8.
1. 3 answers
2. asked by Bryan
3. 2,288 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. 2,235 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. 2,171 views
Write an equivalent fraction for 6/8
1. 5 answers
2. asked by Bradley
3. 2,117 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. 2,082 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. 1,953 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. 1,898 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. 1,891 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. 1,875 views
Write an equivalent fraction for 12/36 =
1. 8 answers
2. asked by Bradley
3. 1,858 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. 1,643 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. 1,618 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. 1,610 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. 1,592 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. 1,572 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. 1,499 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. 1,493 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. 1,477 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. 1,406 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. 1,386 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. 1,362 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. 1,361 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. 1,350 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. 1,326 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. 1,298 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. 1,289 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. 1,285 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. 1,275 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. 1,265 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. 1,253 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. 1,249 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. 1,238 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. 1,216 views
14 during the great fire (independent15 After industries were rebuilt(subordinate
1. 1 answer
2. asked by Christ
3. 1,173 views
calculate the percent water in CaSO4*2H2020.9%?
1. 1 answer
2. asked by c
3. 1,170 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. 1,123 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. 1,117 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. 1,071 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. 1,070 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. 1,027 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. 1,024 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. 966 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. 953 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. 945 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. 929 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. 902 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. 901 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. 889 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. 888 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. 878 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. 876 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. 869 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. 852 views
How did geography help the romans prosper
1. 5 answers
2. asked by Rakeem
3. 846 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. 833 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. 828 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. 824 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. 822 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. 816 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. 809 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. 806 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. 794 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. 790 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. 774 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. 773 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. 770 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. 766 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. 752 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. 742 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. 738 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. 731 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. 729 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. 725 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. 719 views
Why is television called a communications medium?
1. 2 answers
2. asked by Patrick
3. 718 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. 711 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. 702 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. 695 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. 693 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. 675 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. 675 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. 674 views
How did Native Americans react to Ponce De Leon's attempts to settle in Florida?
1. 1 answer
2. asked by henry
3. 668 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. 667 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. 658 views
A student recorded the following data for copper sulfate pentahydrate.Weight of crucible and cover (after heating to constant
1. 5 answers
2. asked by Anonymous
3. 652 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. 651 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. 649 views

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