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2012
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Questions Asked on May 17, 2012

How many grams of CO are needed to react with an excess of Fe2O3 to produce 209.7gFe? Fe2O3(s) + 3CO(g) => 3CO2(g) + 2Fe(s)
1. 4 answers
2. asked by Shelly
3. 9,132 views
Predict the direction of the entropy in each reaction.a. CaCO3(s)-> CaO(s) +CO2(g0 b. NH3(g)+HCl(g)->NH4Cl(s) c. 2NaHCO3->
1. 2 answers
2. asked by bkue
3. 8,064 views
Using 6 as one of the numbers, write a fact family with only two facts.6 x 7=42 42/7=6 Is correct my answer?
1. 9 answers
2. asked by Isabella
3. 5,319 views
Given sin a = 15/17 with a in Quadrant I and cos beta = 4/5 with beta in QuandrantIV, find the exact value of cos(a+beta)
1. 1 answer
2. asked by MIK
3. 5,133 views
the magnetic force on a straight 0.15m segment of wire carrying a current of 4.5 A is 1.0 N. What is the magnitude of the
1. 1 answer
2. asked by ana
3. 3,996 views
a candle was 27.9 grams. the mass of the candle that burned in 3 minutes was 7.2 grams.a) How many moles of wax were in the
1. 4 answers
2. asked by auburn
3. 2,965 views
A spring with spring constant 20.0N/m hangs from the ceiling. A 590g ball is attached to the spring and allowed to come to rest.
1. 2 answers
2. asked by Roan
3. 2,795 views
Find the arithmetic mean a n-1=3.9, a n+1=7.1
1. 2 answers
2. asked by Mimi
3. 2,747 views
Find the value of x. If necessary, round your answer to the nearest tenth. The figure is not drawn to scale.{THe figure is a
1. 1 answer
2. asked by LeXi;)
3. 2,625 views
x gm og Ag was dissolved in HNO3 and the solution was treated with excess of NaCl when 2.87 g of AgCl was precipitated. find the
1. 3 answers
2. asked by aayushi
3. 2,186 views
A girl throws a water-filled balloon at an angle of 50.0 degree(s) above the horizontal with a speed of 12.0 m/s. The horizontal
1. 1 answer
2. asked by Angel
3. 2,090 views
A wheel rotates at 100 revolutions per second. find the angle velocity in radians per second.
1. 2 answers
2. asked by makaela
3. 2,076 views
a small pith ball carries a charge of -1.3 uc. how many excess electrons does this represent?
1. 2 answers
2. asked by ann
3. 2,062 views
(From Emily Dickinson's "The Moon is Distant from the Sea)In the Dickinson poem, the moon and the sea are metaphors for a.
1. 3 answers
2. asked by mysterychicken
3. 2,047 views
1. Regarding management and leadership, which statement ismost accurate? A. Leaders can be good managers, and good managers can
1. 21 answers
2. asked by doofn
3. 1,987 views
A pastry chef has 13 pounds of apple slices to make 8 apple pies. if the chef distributes the slices equally, what will be the
1. 4 answers
2. asked by taylor
3. 1,823 views
how many solutions does the system have?x-2y=6 3x-6y=18 a)1 b)2 c)many d)none
1. 6 answers
2. asked by jenika
3. 1,789 views
Each day, Mr. Samms randomly chooses 2 students from his class to serve as helpers. There are 15 boys and 10 girls in the class.
1. 3 answers
2. asked by MItchell
3. 1,769 views
1) What 2 resources are used up as a candle burns?2) What has happened to the atoms in these resources? 3) Is it possible to
1. 1 answer
2. asked by auburn
3. 1,750 views
Na + H2O �¨ NaOH + H2How many moles of H2 would be formed from 30 grams of Na in the following (UNBALANCED) equation?
1. 2 answers
2. asked by nikki
3. 1,687 views
a floor plan has a scale of 2cm : 3mwhat is the actual length of a room measuring 30 cm on the floor plan? I got to 20 is that
1. 4 answers
2. asked by marko
3. 1,668 views
To determine a facility's CMI you need which of the following?A. The relative weight of a specific DRG and total discharges for
1. 1 answer
2. asked by Brenna
3. 1,660 views
Write a recursive formula for the sequence 15, 26, 48, 92, 180, ... Then find the next term.
1. 2 answers
2. asked by Mimi
3. 1,601 views
If AC = 20, AE = 25, and AB = 5, what is the length of AD?
1. 1 answer
2. asked by Aliyah
3. 1,578 views
an angle with the radian measure of 9pi/5. find radian measure of its reference angle. answers: -4/5, 4pi/5, -pi/5, or pi/5
1. 1 answer
2. asked by Kayla
3. 1,513 views
Which one of the following electron transitions would result in the loss of energy from a hydrogen atom?a. n=1 to n=3 b. n=5 to
1. 2 answers
2. asked by jenni
3. 1,502 views
Calculate the magnitude and direction of the Coulomb force on each of the three charges connected in series:1st - 6 micro
1. 1 answer
2. asked by andrew
3. 1,495 views
What does this poem mean? (tone, mood, and rhyme scheme)At the Un-National Monument Along the Canadian Border William Stafford
1. 8 answers
2. asked by Catherine
3. 1,490 views
The bar graph shows the cumulative number of death form AIDS in the US, from 1990 through each of the years 1996-2002.The data
1. 1 answer
2. asked by Anonymous
3. 1,437 views
solve 2cos^2x-sinx=1, 0 < or equal to x < 2pie
1. 4 answers
2. asked by Calvin
3. 1,364 views
Stan is on active military duty and, therefore, is probably receiving medical coverage fromA. TRICARE. B. CHAMPVA. C. Medicaid.
1. 2 answers
2. asked by Brenna
3. 1,341 views
A horizontal rifle is fired at a target 47 m away. The bullet falls vertically a distance of 8 cm on the way to the target.(a)
1. 1 answer
2. asked by Alex
3. 1,334 views
given v=5i+3j and w=-4i+8j, find projwv
1. 4 answers
2. asked by jenna
3. 1,327 views
Two small, identical metal spheres contain excess charges of -10.0 x 10^-6 C and 6.0 x 10^-6 C, respectively. The spheres are
1. 1 answer
2. asked by R
3. 1,311 views
graph the system of inequalities, and classify the figure created bu the solution region.y¡Ü4x+4 y¡Ü-0.25x+4 y¡Ý4x-1
1. 0 answers
2. asked by jenika
3. 1,270 views
Two vectors have magnitudes 4m and 3m. Which choice is not a possible magnitude for their resultant?3m, 1m, 7m, 12m I chose 12m.
1. 3 answers
2. asked by Hannah
3. 1,226 views
A loan of 12,000 was borrowed from a bank at 14% per annum.Calculate the interest of the loan at the end of the first year. And
1. 2 answers
2. asked by Sam 101
3. 1,221 views
When a physician is billing under the RBRVS system, he or she is usingA. APCs. B. HCPCS/CPT codes. C. MS-DRGs. D. ICD-9
1. 0 answers
2. asked by Brenna
3. 1,205 views
write an equation in slope-intercept form for the line passing through (-2,6) and (4,-3)
1. 1 answer
2. asked by cassie
3. 1,203 views
Factor the trinomial below. Write each factor as a polynomial in descending order. Enter exponents using the caret ( ^ ). For
1. 1 answer
2. asked by Anonymous
3. 1,198 views
Suppose f(x)=cos x - sin x and g(x)=cos x + sin x. Explain why the graph of (fxg)(x) is equivalent to the graph of h(x)=cos x
1. 2 answers
2. asked by Kjd
3. 1,175 views
As you research, verify the facts you find by consulting______.A.Mutilple sources B.Yor English teacher C.The encyclopedia D.The
1. 7 answers
2. asked by MM
3. 1,142 views
Many states offer personalized license plates. California, for example, allows personalized plates with seven spaces for
1. 1 answer
2. asked by Monic
3. 1,141 views
The pH of a 0.010 M aqueous solution of a weak monoprotic acid, HX, is 4.5. What is the value of the acid ionization constant?
1. 1 answer
2. asked by Anonymous
3. 1,134 views
A box of tacks weighs 120 grams when full, when half full it weighs 70 grams. How many grams does the box weigh when empty?
1. 2 answers
2. asked by Ariel
3. 1,129 views
what is the magnitude and direction of the vector U= -2i - 3j
1. 1 answer
2. asked by TAYLOR
3. 1,128 views
4 moles CO, 5 moles N2 and 2 moles C2H4 are placed in a 5 liter vessel at 27 degree celsius . the ratio of kinetic energy per
1. 0 answers
2. asked by kanika
3. 1,078 views
The potential difference between the accelerating plates of a TV set is about 30 kV. If the distance between the plates is 1.1
1. 2 answers
2. asked by andrew
3. 1,076 views
If Sally places a rocket that is 3 feet 6 inches tall atop a launch pad that is 1 foot 8 inches tall, how tall will the entire
1. 1 answer
2. asked by Rezu
3. 1,047 views
inverse tan x = inverse cos 4/5
1. 1 answer
2. asked by makaela
3. 1,037 views
Calculate the grams of solute required to make 2500mL of 90% saline solution?
1. 1 answer
2. asked by Morgan
3. 1,035 views
Vector A has a magnitude 2.4m and direction 130 degrees relative to the positive x-axis. Vector B has magnitude 3.0m and
1. 3 answers
2. asked by Hannah
3. 1,035 views
Help! I have to graph my answer to this problem: ADFG has vertices D (–2, 4), F (–3,1), and G (–1, 2). Find the vertices
1. 1 answer
2. asked by Ann
3. 992 views
Write a vector equation AND parametric equations of the line through the points A(6,-1,5) and B(-2,-3,6)direction vector =
1. 1 answer
2. asked by j
3. 960 views
write sin4xcos2 as the sum or difference of two functions. answers: 1/2(cos6x+cos2x), 1/2(cos2x-cos6x), 1/2(sin6x+sin2x),
1. 0 answers
2. asked by jake
3. 949 views
The average of to consecutive Even integers is 17. Find the largest of the four integers ?
1. 1 answer
2. asked by Sara
3. 944 views
A 5-kg ball is thrown straight up in the air with an initial speed of 24m/s. After its release and before it hits the ground
1. 6 answers
2. asked by Hannah
3. 943 views
Of the following tasks performed outside the classroom,which is the MOST time-consuming?
1. 3 answers
2. asked by Sandra
3. 928 views
I still have a few things I'd like you to consider, Writeacher.Thank you very much. 1) She refused to go to the dentist's We are
1. 1 answer
2. asked by John
3. 915 views
How do you diagram the sentence ..John Wycliff taught at Oxford,and translated the Bible, into English?
1. 1 answer
2. asked by Arianna
3. 908 views
determine the angle between the planes 2x + 2y + 7z = 8 and 3x - 4y + 4z = 5
1. 1 answer
2. asked by j
3. 908 views
The formula given was: (real rate of interest) = (nominal rate of interest) - (expected rate of inflation)A chartered bank
1. 0 answers
2. asked by Seinna
3. 897 views
Compute9(sub)C(sub)6
1. 1 answer
2. asked by Kyle
3. 896 views
y=-x+8x+y=7 a)(1/2,15/2) b)system has infinitely many solutions c)(-1/2,17/2) d)no solutions
1. 1 answer
2. asked by jenika
3. 893 views
write y=sinx-cosx in the form y=ksin (x+a), where the measure of a is in radians.
1. 1 answer
2. asked by Calvin
3. 843 views
A cone has a volume of 41 cubic meters. If cut the cone in half, what would be the volume of the cone?
1. 1 answer
2. asked by Scott
3. 842 views
How do I calculate the mass of sodium carbonate required to neutralize 15-20 mLof 0.25M HCl at the stoichiometric point?
1. 1 answer
2. asked by Joel
3. 841 views
Can you help me with the following Input and Output values?Input 0 Output 1 Input 1 Output 10 Input 2 Output 20 Input 3 Output
1. 2 answers
2. asked by Sarah
3. 829 views
Find the measure of angle BAC.{There's an image of a circle with an angle from the top left side going to the bottom of the
1. 0 answers
2. asked by LeXi<3
3. 824 views
A sled is pulled with a horizontal force of 17 N along a level trail, and the acceleration is found to be 0.40 m/s2. An extra
1. 2 answers
2. asked by Alex
3. 822 views
The appromiate mass of a comet X has been memasured. When comet X orbits the Sun 5000 years later it only has half it's previous
1. 2 answers
2. asked by Kim
3. 819 views
What are the literary elements of this poem and what does it mean?Foundations Leopold Staff I built on the sand And it tumbled
1. 8 answers
2. asked by Anonymous
3. 810 views
Please help..Determine the value of "g" so that the average rate of change of the function h(x)=x^2+3x+2 on the interval
1. 0 answers
2. asked by Anonymous
3. 795 views
At an instant, Runner 'A' runs at 6m/s with an acceleration of 2m/s^2. Runner 'B' runs at 5m/s with an acceleration of 4m/s^2,
1. 3 answers
2. asked by Ajani
3. 767 views
On Saturday, the fruit and juice bar was selling 23 glasses of fruit punch an hour. By 4 p.m., they had sold 138 glasses. If
1. 2 answers
2. asked by Anonymous
3. 758 views
The expected return on the market is 12% and the risk free rate is 7%. The standard deviation of the return on the market is
1. 0 answers
2. asked by benish
3. 757 views
Compare the present Periodic Table with Mendeleevs original Periodic Table in terms of how it is organized, number of elements,
1. 2 answers
2. asked by Kellin
3. 755 views
How many mL of a stock solution of 2M potassium nitrate would you need to prepare 100mL of .150 M potassium nitrate?
1. 1 answer
2. asked by Lis
3. 742 views
Hello,I had a lab about calorimetry and one of the questions was if the reaction of acetone with hypochlorite is an
1. 3 answers
2. asked by Robert
3. 731 views
Does any one have the answers for the penb foster poetry 1 exam
1. 2 answers
2. asked by Lovely
3. 707 views
simplify (1+3i)(1-5i)
1. 1 answer
2. asked by devon
3. 707 views
a vector has a magnitude of 16 and direction of 120 degrees. write the vector in terms of unit vecotrs i and j.
1. 1 answer
2. asked by TAYLOR
3. 703 views
Find the surface area of a rectangular prism with a length of 10 cm, a width of 4 1/2 cm, and a height 8 3/4 cm. Round your
1. 2 answers
2. asked by hana
3. 698 views
you need 5 foot long board into pieces that are 3/4 of a foot long. How many pieces can we cut? what length of the board will be
1. 2 answers
2. asked by juan
3. 690 views
in a trivia question ;your team answered 32 out of 40 question correctly. the opposing team answered 16 out of 20 questions
1. 1 answer
2. asked by marko
3. 685 views
Here's the question again that I am trying to get help with because I can't figure it out and I got one answer, but I really
1. 1 answer
2. asked by Ann
3. 660 views
graph the system of inequalities, and classify the figure created bu the solution region.y¡Ü4x+4 y¡Ü-0.25x+4 y¡Ý4x-1
1. 0 answers
2. asked by jenika
3. 654 views
Solve2x-y-5z=1 x+2y+3z=9 3x+6y+z=11 2x-3y=-13 -5x+2y=16
1. 1 answer
2. asked by Sara
3. 650 views
if 1 tablespoon is prescribed as a dose of medicine,approximately how many doses will be obtained in 12 fl.oz?
1. 5 answers
2. asked by anna
3. 647 views
A certain lock has three tumblers, and each tumbler can assume seven positions. How many different possibilities are there?
1. 2 answers
2. asked by Monic
3. 632 views
A 2kg toaster is at rest on a table which has no friction.Sally begins pushing the toaster to the right with a force of 6n for
1. 1 answer
2. asked by lisa
3. 630 views
John spent 1/4 of his paycheck on games. Then he put $24.00 into his savings. He then had 1/4 of his paycheck left. How much was
1. 2 answers
2. asked by Tisha
3. 628 views
1) Matt traveled the first leg of his trip for 1350 miles on a large jet. He then traveled an additional 600 miles on a private
1. 2 answers
2. asked by Sara
3. 628 views
y=2x-12x-y-1=0 a)this sytem has excatly onw solution b)this system has indinetly many solutions c)this system has no solution
1. 4 answers
2. asked by jenika
3. 624 views
Please help..Determine the value of "g" so that the average rate of change of the function h(x)=x^2+3x+2 on the interval
1. 1 answer
2. asked by Kjd
3. 619 views
Dickens is famous for the names he gave to his characters-- Uriaha heap, mr gradgrind and little doritt are a few examples.
1. 2 answers
2. asked by bob
3. 616 views
What magnitude of acceleration will result when 60N and 80N forces in opposite direction if applied to a 5kg body?
1. 1 answer
2. asked by Beka
3. 610 views
Joe is investigating the rate of change of the function y=cos x on the interval xE[0,2π]. He notices that the graph of y=cos x
1. 0 answers
2. asked by Anonymous
3. 610 views
Miss C gives a test to the 10 students in her first-period algebra class. The grades are93,82,95,86,90,84,89,79,87,93 A. Find
1. 1 answer
2. asked by Kate
3. 604 views
solve 27^2x-1=(1/81)^x
1. 1 answer
2. asked by devon
3. 590 views

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