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Questions Asked on May 23, 2010

In the reaction:n2(g) + 3H2(g) -> 2NH3(g), nitrogen is A. electrolyzed B. synthesized C. oxidized D. reduced e. None of these
1. 1 answer
2. asked by Charleze
3. 2,676 views
How do you solve:sin[arccos(-2/7)] ?
1. 2 answers
2. asked by anonymous
3. 2,588 views
Q)1 : Alpha particles travel through a magnetic field of 0.360T and are deflected in an arc of 0.0820m. Assuming the alpha
1. 3 answers
2. asked by Marium
3. 2,324 views
Suppose you wish to express sin(3t) in terms of sint and cost. Apply the sum formula to sin(3t) = sin(t+2t) to obtain an
1. 1 answer
2. asked by John
3. 2,232 views
Calculate the enthalpy change (delta H) in kJ for the following reaction.2Al(s) + Fe2O3 (s) ==> 2 Fe(s) + Al2O3(s) use enthalpy
1. 1 answer
2. asked by Kim
3. 1,933 views
The points P(-2, 1), Q(-6, 4) and R(4,3) are three verticies of parallelogram PQRS .Find the coordinate S.
1. 1 answer
2. asked by Anonymous
3. 1,895 views
the diameter of earth is 7928 miles. what is the diameter in inches? in yards? If the diameter of earth is expressed in 12,756km
1. 1 answer
2. asked by maria
3. 1,806 views
Find the approximate pH range suitable for the separation of Fe3+ and Zn2+ by precipitation of Fe(OH)3 from a solution that is
1. 1 answer
2. asked by Monica
3. 1,595 views
I am studying the Great Depression and I understnad it pretty well except for all the factors dealing with Presidents at the
1. 4 answers
2. asked by m&m
3. 1,565 views
I forgot to include the following sentences.1) Among English teenagers are popular skinny jeans. 2)Gulliver takes an aversion
1. 1 answer
2. asked by Franco
3. 1,546 views
Product is NOT concerned with:A. Packaging. B. Quality level. C. Branding. D. Wholesale price.
1. 1 answer
2. asked by ILEANA
3. 1,532 views
Think of a recently completed group project that you have been involved in. This project may have been a student project, a
1. 1 answer
2. asked by Anne
3. 1,382 views
For a child's birthday party, her family perpares goodies bags for the guests. each goodie bag contains 1 notepad, 2 pencils, 1
1. 1 answer
2. asked by Mickey
3. 1,381 views
A common constituent of kidney stones is Ca3(PO4)2, calcium phosphate. Are kidney stones containing Ca3(PO4)2 more likely to
1. 0 answers
2. asked by kris
3. 1,334 views
Is a Cliché phrase considered Plagiarism? (the author is dead more than 390 years ago.)Is it okay to use it in a writing piece
1. 4 answers
2. asked by Christopher
3. 1,294 views
Now we prove Machin's formula using the tangent addition formula:tan(A+B)= tanA+tanB/1-tanAtanB. If A= arctan(120/119) and B=
1. 2 answers
2. asked by alex
3. 1,288 views
Determine the interior angles of triangle ABC for A(5,1), B(4,-7) and C(-1, -8).
1. 1 answer
2. asked by Ally
3. 1,211 views
kyle just started a new job that pays $7 per hour. He had been making $5 per hour at his old job. Kyle worked a total of 54
1. 2 answers
2. asked by autumn
3. 1,211 views
What is the standard heat of reaction (Delta H^0) for the decomposition of hydrogen peroxide?2H2O2 (l) ==> 2H2O (l) + O2(g)
1. 0 answers
2. asked by Jack
3. 1,209 views
The following reaction occurs in an aqueous acid solution:no3- + I- -> IO3- + NO2 In the balanced equation, the coefficient of
1. 0 answers
2. asked by Charleze
3. 1,183 views
Ormeau Park in Belfast has an area of about 25 cm2 on the same map. Calculate the area of the park on the ground. Give your
1. 3 answers
2. asked by SRay
3. 1,171 views
Trace the memory system from stimuli into long-term memory. Siscuss the features of each step and factors that enhance or impede
1. 1 answer
2. asked by jade
3. 1,154 views
do we have buffering region and ph=pka in any of these conditions:strong base vs strong acid strong base vs weak acid weak base
1. 0 answers
2. asked by eng
3. 1,151 views
Three pieces of wood are needed for a project.They are to be cut from a 90-cm-long piece of wood. The longest piece is to be 3
1. 2 answers
2. asked by Annie
3. 1,142 views
HeyCan anyone help me out with this problem. For part a i understand i plot microbial numbers against time on semi log paper to
1. 0 answers
2. asked by Jennifer
3. 1,111 views
With proportional income tax,a. The tax multiplier equals (MPC)(1-MPC) b. The tax multiplier equals –MPC/(1-MPC) c. The
1. 3 answers
2. asked by Sarah
3. 1,094 views
Assuming that a typical popular music CD comprises 12 songs each of 8500 KB, what would the effective transmission speed need to
1. 0 answers
2. asked by SRay
3. 1,055 views
A particle accelerated by a potential difference enters a velocity selector. The particle travels staright when the magnetic
1. 3 answers
2. asked by Farah
3. 1,026 views
The CN Tower is 553 m tall. A person is south of the tower, in a boat on Lake Ontario at a position that makes an angle of
1. 0 answers
2. asked by Anonymous
3. 1,023 views
Jack decides to ride the ferris wheel. He board at 1m and is the last person on the ride. The diameter of the wheel is 16m and
1. 1 answer
2. asked by Sarah
3. 1,007 views
A quoting department for a custom publishing house can complete 4 quotes per day, and thereare 20 quotes in various stages in
1. 0 answers
2. asked by jennifer
3. 1,002 views
C6H12O6(s) +6CO2(g) +6H2O9g)1) given 2 moles of glucose and 14 moles of O2, how many moles of CO2 could be produced? 2) which is
1. 1 answer
2. asked by Mickey
3. 977 views
Can you tell me if the following sentences or phrases are possible? Thank you very much in advance.1) I'm wearing a pair of
1. 2 answers
2. asked by Franco
3. 976 views
Current implementations of the ‘WiMAX’ wireless technology can support 2 Mbps connections at a distance of 10 km; calculate
1. 1 answer
2. asked by nep keto
3. 976 views
If the mole fraction of sulfuric acid (H2SO4) in an aqueous solution is 0.325, wat is the percent by mass of H2SO4?
1. 0 answers
2. asked by Lola
3. 963 views
find area of cirle 3.9cm radius to nearest tenth?a=pie 3.14 x r squared 3.14 x 3.9(15.21) 3.14 x15.21 =47.75 nearest tenth
1. 2 answers
2. asked by joshuah
3. 954 views
x^2-4/x^2+3x+24x^2-y^2/y-2x I need help with these problem
1. 1 answer
2. asked by Gregory
3. 953 views
Which of the following is true?A. The product P in the marketing mix stands for both physical goods and tangible B. The product
1. 0 answers
2. asked by ILEANA
3. 928 views
How do i find the slope of the line containing the pair of points (5,4) and (7,-10)slope m= what
1. 2 answers
2. asked by kim
3. 913 views
The half-life of xe-133 is 126 hours. Starting with 250 mg, after 500 hours around how many mg remain?
1. 1 answer
2. asked by Lily
3. 912 views
A parallelogram has area 85cm squared. The side lengths are 10 cm and 9 cm. What are the measures of the interior angles?
1. 1 answer
2. asked by Thomas
3. 897 views
An airplane takes off at a ground velocity of 200 km/h toward the east, climbing at an angle of 14 degrees. A 20-km/h wind is
1. 1 answer
2. asked by Ariza
3. 894 views
what does furasosu mean?
1. 2 answers
2. asked by kelly
3. 892 views
Does anyone know what the stature for age percentiles means?The perecent of people that are this certain height/age in the
1. 1 answer
2. asked by Anonymous
3. 883 views
Consider the parallelogram with verticies (0,0), (3,0), (5,3) and (2,3). Find the angles at which the diagonals of the
1. 1 answer
2. asked by Ally
3. 870 views
Leptin is a hormone that is produced by fat cells and plays a role in body metabolism and obesity. Studies have demonstrated
1. 0 answers
2. asked by Mary
3. 852 views
Does the size of a 1,5V cell(battery) affect the internal resistance of a circuit containing: 3 different size
1. 1 answer
2. asked by Luke
3. 841 views
Suppose that a given parallelogram is not a rhombus. Which of the following can you conclude about this parallelogram?A) Its
1. 1 answer
2. asked by Anthony
3. 841 views
The Answer is (32/20)^2=2.56times the kinetic enrgy at 20 m/s 2.56x4500Problem The kinetic energy (k) of moving object varies
1. 3 answers
2. asked by rosa
3. 831 views
The probability that a school bus is late is 0.04. How many times would you expect the bus to be late in a 5-week period?
1. 1 answer
2. asked by CB
3. 819 views
Only 6.1 mg of calcium oxalate, Ca(C2O4) dissolves in 1.0 L of water at 25 Celsius. What is the solubility product of calcium
1. 1 answer
2. asked by kris
3. 801 views
Could someone please check my answers. If they are incorrect could you please give me the correct answers or tell me where I
1. 4 answers
2. asked by Kelsey
3. 796 views
The points P(-2, 1), Q(-6, 4) and R(4,3) are three verticies of parallelogram PQRS .Find the coordinate S.
1. 1 answer
2. asked by Anonymous
3. 793 views
how many sides does a polygon have if the sum of its interior angles area) 1080 b) 1260 How could i figure this out without
1. 1 answer
2. asked by Rebecca
3. 774 views
list all the possible rational zeros of f using the rational zero theorem. then find all the zeros of the function.1.
1. 1 answer
2. asked by kc
3. 769 views
Select one artwork that expresses a human experience you have encountered in your own life. Human experience, or the human
1. 3 answers
2. asked by lashun
3. 758 views
Suppose 50.0 grams of magnesium reacts with 71.0 grams of hydrochlorie acid according to the foloowing equation:Mg(s) + 2HCl(aq)
1. 0 answers
2. asked by Charile
3. 757 views
My spanish teacher assigned us a project to write a children's book. I wrote a sorta different version of the boy who cried
1. 4 answers
2. asked by Pauline
3. 745 views
Think of a recently completed group project that you have been involved in. This project may have been a student project, a
1. 1 answer
2. asked by Anna
3. 740 views
Which of the following is equivalent to the expression (t2 − t − 6)(t − 3)−1 ?a. t3 − 9t +18 b. (t − 2)(t + 3) c. (t
1. 5 answers
2. asked by Mary
3. 739 views
For an experiment, a student needs 1L each of 2M NaOH and 2 M KCl solutions. The NaOH will be prepared from a 12M stock
1. 3 answers
2. asked by baby_doll321
3. 733 views
A square is defined by the unit vectors i and j. Find the projections of i and j on each of the diagonals of the square.
1. 1 answer
2. asked by Anonymous
3. 732 views
To reduce theft, the Meredeth Company screens all its employees with a lie detector test that is known to be correct 90 percent
1. 0 answers
2. asked by bob
3. 726 views
Suppose that a natural number from 1 through through 11 inclusive is selected at random. What is the probability that the number
1. 3 answers
2. asked by Tasha
3. 722 views
Today the Center City baseball team scored 5 runs. The day before yesterday they scored w runs. How many runs did they score in
1. 3 answers
2. asked by Lisa
3. 721 views
I had these problems on my test and for some reason got them wrong. Here are the problems:Solve: x-y=9 x+y=1 The test states
1. 2 answers
2. asked by jose
3. 720 views
Identify each enthalpy change by name and classify each change as exothermic or endothermic.a)1 mol C3H8 (l) ==> 1 mol C3H8 (g)
1. 0 answers
2. asked by Sal
3. 718 views
Show that the quadrilateral with verticies at P(0,2,5), Q(1,6,2), R(7,4,2), and S(6,0,5) is a parallelogram.
1. 3 answers
2. asked by Anonymous
3. 701 views
How many g NO gas can be produced from 120 mL of 2.80 M HNO3 and excess Cu?3Cu(s) + 8HNO3(aq) ---> 3Cu (NO3)2(aq) + 4H2O(l) +
1. 1 answer
2. asked by helen
3. 689 views
a person with an injury to the extrinsic muscles of the eye would find it difficult to
1. 5 answers
2. asked by michelle jackson
3. 668 views
What does this mean"would have been granted a waiver of tuition for his son."
1. 1 answer
2. asked by Sara
3. 665 views
Determine the value of k so that u=[2,5] and v=[k,4] are perpendicular.
1. 1 answer
2. asked by Anisha
3. 654 views
how many side and angles does a trapezoid angle, hexagon, and pentagon have?solve each equation: 13 + y = -3, 3y + 8=3, y over
1. 2 answers
2. asked by joshuah
3. 651 views
1) In "To Kill a Mockingbird" does Mr. Underwood own the Maycomb Tribune? Does he control what goes in the Maycomb Tribune and
1. 1 answer
2. asked by Anonymous
3. 644 views
If 11.53g hydrogen sulfide reacts with 3.97g oxygen gas in the following reaction:2H2S + O2 + H2O which is the maximum mass of
1. 0 answers
2. asked by Charile
3. 639 views
Develop a pricing strategy for your chosen product/service.Discuss what factors will impact your pricing strategy. What pricing
1. 0 answers
2. asked by Anna
3. 638 views
I need to find information on the differences and similarities of art deco and pop art. Any suggestions?
1. 1 answer
2. asked by Linda
3. 636 views
Can you please check this sentence for me, please? Thank you for your invaluable help.1) I like this singer for his
1. 1 answer
2. asked by Franco
3. 627 views
Which of the following conditions does not ensure that a quadrilateral is a parallelogram?A) Both pairs of opposite sides are
1. 1 answer
2. asked by Justin
3. 615 views
I am stuck on my assignment quoting, summarizing, and paraphrasing sources. I have my sources but I am not to sure how to fill
1. 0 answers
2. asked by Nikol
3. 610 views
8)Suppose that a given parallelogram is not a rhombus or a rectangle. Which of the following can you conclude about this
1. 1 answer
2. asked by Don
3. 610 views
Show that if |x + 3| < 1/2, then |4x + 13| < 3.I have no idea how to do this. I thought I might have to use the triangle
1. 1 answer
2. asked by Susan
3. 594 views
1. You have recently found a location for your bakery and have begun implementing the first phases of your business plan. Your
1. 0 answers
2. asked by Sequoiao9
3. 579 views
There are four forecasting techniques described in the text. Briefly describe the merits of each one and identify the one you
1. 2 answers
2. asked by Erin
3. 578 views
Susan has red, blue, and yellow sweaters. Joanne has green, red, and white sweaters. Diane's sweaters are red, blue, and mauve.
1. 2 answers
2. asked by Margaret
3. 572 views
solve this equation by completing the square.x^2+4x-21=0
1. 1 answer
2. asked by Sally
3. 569 views
How much energy would be needed to vaporize 150 grams of ethanol when it is at its boiling point?Hear of Vaporization
1. 0 answers
2. asked by Julia
3. 568 views
We estimate that today c.89% of homes can readily get a 2Mbps (or higher)broadband service from cable, ADSL or wireless means.
1. 1 answer
2. asked by SRay
3. 566 views
The problem on my homework is:What mass in grams of iron metal is required to react with 2.50 L of .1500 M of sulfuric acid to
1. 0 answers
2. asked by Lauren
3. 566 views
What biogeochemical cycles go on in a tropical rainforest?Thank you!!
1. 2 answers
2. asked by Katy
3. 562 views
Ba-140 has a half life of 13.0 days. What fraction of a sample will remain after 39 days?
1. 1 answer
2. asked by Lily
3. 550 views
Thank you very much for your last corrections. I really hope you can check these sentences, too.1) I'm wearing a dark blue plain
1. 1 answer
2. asked by Franco
3. 543 views
In To Kill a Mockingbird what is the place that Tom Robinson has to go to after Tom was accused of being guilt? Prison? I
1. 1 answer
2. asked by Anonymous
3. 530 views
Resolve u=[3,4,7] into two orthogonal vectors, one of which is collinear with v=[1,2,3].
1. 0 answers
2. asked by Arima
3. 529 views
How can I type a website in MLA format on an annotated bibliography?
1. 2 answers
2. asked by AL 92
3. 527 views
Determine a unit vector that is orthogonal to both u=[3,-4, 1] and v=[2,3,-4].
1. 1 answer
2. asked by Ariza
3. 524 views
Compute the difference quotient: [(f(x)- f(a))/(x-a)]..for f(x)= (-1/x^2)
1. 2 answers
2. asked by krista
3. 521 views
a+ sqrt 2 = 7 Solve the question for both the exact irrational root and its rational approximation to the nearest tenth. THANK
1. 1 answer
2. asked by april
3. 520 views
i need help finding a article that either relates to business productions, advertising or marketing- a canadian article plz asap
1. 1 answer
2. asked by navroz
3. 518 views
The inside of your refrigerator might be set to a temperature of aboutA) -2.9°C B) 29°C C) 2.9°C D) 43.5°C I think the
1. 1 answer
2. asked by Carmen
3. 503 views

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