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Questions Asked on April 14, 2009

The standard enthalpies of formation of gaseous propylene (C3H6) and propane (C3H8) are +20.4kJ/mol and -103.8 kJ/mol. Their
1. 1 answer
2. asked by Brigette
3. 7,870 views
Which interval notation represents the set of all numbers from 2 through 7, inclusive?a. (2,7} b. (2,7) c. {2,7) d. {2,7}
1. 3 answers
2. asked by Angie
3. 4,563 views
A 32-u oxygen molecule (O2) moving in the +x direction at 580 m/s collides with an oxygen atom (mass 16 u) moving at 870 m/s at
1. 3 answers
2. asked by Jacob
3. 3,382 views
find the unit rate $920 for 40 hours
1. 6 answers
2. asked by jenna
3. 2,872 views
There are four coils of wire being used as electromagnets. They all have the same size and are made up of the same material but
1. 3 answers
2. asked by sophie
3. 2,507 views
A square field has a perimeter of 360m. what is the area?
1. 12 answers
2. asked by KIERA
3. 2,447 views
The mass of the CuSO4 x 5H2O sample is 1.664 g. The mass of the recovered copper is 1.198 g.Calculate the percent copper in pure
1. 4 answers
2. asked by Lou
3. 2,407 views
What length of fencing is required to surround a square field with area 250 m2? Show your work. Give your answer to the nearest
1. 5 answers
2. asked by rebecca
3. 2,008 views
A recent survey shows that the average man will spend 141,288 hours sleeping, 85,725 hours working, 81,681 hours watching
1. 2 answers
2. asked by Anonymous
3. 1,632 views
1. Identify the NC in each of the following sentences. Tell whether it is a Subject Noun Clause, an Object Noun Clause or an
1. 7 answers
2. asked by Nora
3. 1,614 views
88students for 4 classes find the unit rate
1. 3 answers
2. asked by bob
3. 1,482 views
MnO4^-(aq) + H20(l) ==> MnO2 + OH^-net charg is -1 +7 (-8) ==> 4(-4) Manganese is reduced MnO4^- +3e- ==> MnO2 H2) is the
1. 2 answers
2. asked by Steve
3. 1,421 views
One kind of battery used in watches contains mercury(II) oxide. As current flows, the mercury oxide is reduced to mercury.HgO(s)
1. 1 answer
2. asked by Steve
3. 1,383 views
find the unit rate 175 calories in 12 ounces
1. 6 answers
2. asked by jenna
3. 1,376 views
How do you calculate the pH when the following substances are added to a buffer.(all of the solutions are at .10M conc.)The
1. 1 answer
2. asked by Mary
3. 1,337 views
Consider racial imbalances in education, the economy, family life, housing, criminal justice, health care and politics. Of these
1. 0 answers
2. asked by Anonymous
3. 1,268 views
A 20.0 mL sample of 0.20 M sodium acetate is titrated with 0.11 M HCl)aq). What is pH after the addition of50.0 mL HCl(aq)? Kbof
1. 2 answers
2. asked by Steve
3. 1,257 views
The mass of the CuSO4 x 5H2O sample is 1.664 g. The mass of the recovered copper is 1.198 g.1. Compute the experimental percent
1. 2 answers
2. asked by Lou
3. 1,181 views
Near Earth, the density of protons in the solar wind (a stream of particles from the Sun) is 12.4 cm-3, and their speed is 576
1. 2 answers
2. asked by sweety
3. 1,174 views
Studies find a negative correlation between hours spent watching television and scores on reading tests. Does watching
1. 1 answer
2. asked by Karen
3. 1,169 views
essay on should students only have to take reading andmath to go to 9th grade agree or disagree?
1. 2 answers
2. asked by Robin
3. 1,165 views
The equations 5x+2y=48 and 3x+2y=32 represent the money collected from school concert ticket sales during two class periods. If
1. 9 answers
2. asked by Angie
3. 1,163 views
Potassium hydrogen phthalate (molar mass = 204.2g/mol) is used to standardize sodium hydroxide. If 26.37 mL of NaOH(aq) is
1. 2 answers
2. asked by Steve
3. 1,155 views
It is found that 24.68 mL of 0.1165 M NaOH is needed to titrate 0.2931 g of an unknown acid to the penolphtalein end point.
1. 2 answers
2. asked by some kid
3. 1,134 views
I am doing a project where I need to know the number of people born in America in the year 1991. How many were born that year?
1. 2 answers
2. asked by Brielle
3. 1,123 views
TLB EXHIBIT 1SUMMARY OUTPUT Regression Statistics Multiple R 0.397871332 R Square 0.158301597 Adjusted R Square 0.146771482
1. 1 answer
2. asked by Mike
3. 1,111 views
Given the following standard reduction potentials,Fe^2+(aq) + 2e^- ==> Fe(s) E naught = -o.440V FeS(s) + 2e^- ==> Fe(s) +
1. 0 answers
2. asked by Steve
3. 1,109 views
Need some help with these questions....Thanks in advanced.All profit-maximizing firms hire inputs up to the point where: A) MRP
1. 9 answers
2. asked by sue
3. 1,074 views
what has more predictable behavior, a proton or an electron, and why?a. an electron because of its smaller mass b. a proton
1. 1 answer
2. asked by Jess
3. 1,070 views
Explain using an example how to charge an object positively using only a negatively charged object.
1. 2 answers
2. asked by Sam
3. 1,044 views
does withdrawls fall in the catergorie income statement.if not please correct. the other two choices are statement of changes in
1. 1 answer
2. asked by kneon
3. 1,031 views
k so the question the world renowed question!!which was born first the chicken or the egg? my teacher wants me to write a
1. 0 answers
2. asked by thnker
3. 1,018 views
Is Lady Macbeth aware that Lord Macbeth killed Macduffs' family. If no, then I need a quote to prove Lord Macbeth did not inform
1. 1 answer
2. asked by Me
3. 1,014 views
I have just started business school and am struggling with this HW problem. any help would be great!!...A certain type of new
1. 1 answer
2. asked by bob
3. 1,003 views
Use a calculator and systematic trial to approximate each square root to 2 decimal places. SHow your work.a) square root of 20=
1. 3 answers
2. asked by rebecca
3. 967 views
1. We do exercises and play baketalll at the basketball court.2. We warm-up and play tennis at the tennis court. 3. We do
1. 1 answer
2. asked by John
3. 953 views
In The Call of the Wild, when London writes about "what a puppet thing life is," it reflects the theme summarized in which of
1. 1 answer
2. asked by victoria
3. 911 views
what is 7.686 rounded to the nearest hundredth?
1. 3 answers
2. asked by kayla
3. 873 views
From 2 points 400 yards apart on the bank of a straight river flowing due south, the bearings of a point on the opposite bank
1. 2 answers
2. asked by MW
3. 860 views
can i please get some help with thiswhat were two major components of Ronald Reagan's economic plan? a. expanding the government
1. 4 answers
2. asked by history
3. 855 views
i really need help on this, i've been trying to answer it for so long, please help meHow did Woodrow Wilson's reform platform
1. 3 answers
2. asked by history
3. 851 views
E naught cell for the following galvanic cell is +0.254VHg2^2(aq)+2I^-(aq) ==> 2 Hg(l) + I2(s) What is delta G naught for this
1. 0 answers
2. asked by Steve
3. 846 views
The polarity of an electromagnet can be determined using the second right-hand rule.A. True B. False Is it B? Current passing
1. 2 answers
2. asked by sophie
3. 795 views
2.Which of the following sentences contain NC’s and which contain adverbial clauses?a.Liz accepted [that she would never be a
1. 2 answers
2. asked by Nora
3. 794 views
When an electron moves from A to B along an electric field line in Fig. 24-29, the electric field does 3.66 x 10-19 J of work on
1. 2 answers
2. asked by sweety
3. 793 views
John C. Maxwell says in his book, Ethics 101, "There's no such thing as business ethics; there's only ethics" Please give me
1. 2 answers
2. asked by Jessy-Ohio
3. 789 views
Identify the roles district, state, and federal government agencies have in your local schools. Which agency do you feel has the
1. 2 answers
2. asked by Ashley
3. 772 views
Can someone please proofread my Spanish paragragh? It's for an exam. In case you think I'm cheating, the teacher told me to
1. 1 answer
2. asked by Larry
3. 752 views
mol KHP = (0.7719g)(1 mol KHP/204.2g) = .0038molWhere are the moles of NaOH? I know that there are 0.02637 L of NaOH and I know
1. 1 answer
2. asked by Steve
3. 751 views
Calulate E naught cell for the reaction below5 Cd(s) + 2 MnO4^-(aq) + 16H+(aq)+ 2 Mn2+(aq) + 8 HxsO(l) The oxidation anode must
1. 1 answer
2. asked by Steve
3. 749 views
Suppose X is a random variable whose CDF is given byF(x) = 0, X<0 X^3, 0<X<1; 1, 1<X Then the mean for this random variable is:
1. 1 answer
2. asked by kkjhjkh
3. 734 views
in my book, it shows a 1915 american newspaper clipping and i have to answer questions...this is what the clipping looks like.
1. 3 answers
2. asked by history
3. 726 views
Write a 350-700 word response, in which you choose two or three Eastern philosophies and describe how they compare. Take sides,
1. 1 answer
2. asked by jasmine
3. 725 views
Compare and contrast contributory negligence with comparative negligence.
1. 1 answer
2. asked by Rachel
3. 721 views
Okay, I got accepeted for a part time job at school, and the letter says that I should bring a resume. I never had a job before,
1. 2 answers
2. asked by Chopsticks
3. 714 views
What are the functions of three common computer software applications for the business world available on the market today? How
1. 1 answer
2. asked by Anonymous
3. 711 views
This is a problem we did previously on a test; my answer was marked correct, but I am having trouble getting my answer in the
1. 1 answer
2. asked by Lauren
3. 705 views
I am suposed to apply L'Hospitals rule to solve. I can't seem to solve it tho. could someone explain the steps to me? Thanks!the
1. 3 answers
2. asked by Riley
3. 694 views
can i please get some help with this:Why did the Watergate break-in occure? a. the Nixon White House wanted to get Daniel
1. 1 answer
2. asked by history
3. 691 views
Can someone please help me with this problem?In order to reduce the material cost, an engineer decides to use a hybrid beam
1. 0 answers
2. asked by Jim
3. 689 views
Sorry i know its a bit long but any corrections/suggestions would be greatly appreciated!-Parle-moi de toi et de ta famille? Je
1. 1 answer
2. asked by Haylee
3. 688 views
At what point during the course of treatment of a new patient should notice of use and disclosure of health information,
1. 2 answers
2. asked by Rachel
3. 687 views
please check thesewhich of the following is a reason the United States became involved in affairs in the Middle East following
1. 1 answer
2. asked by history
3. 680 views
How do you calculate the pH when the following substances are added to a buffer.(all of the solutions are at .10M conc.)The
1. 1 answer
2. asked by Mary
3. 678 views
You own and operate PC’s R Us, a firm that manufactures customized computers to meet the specifications of universities that
1. 2 answers
2. asked by Nicci
3. 677 views
If the tilt of Earth’s axis were 10◦ , where would we find the Arctic and Antarctic Circles (whatlatitudes)? Would this
1. 1 answer
2. asked by frank Minimi
3. 676 views
Hello,I'm currently writing my first academic paper. My subject is Proposition 8. In one chapter, I intend to compare the
1. 3 answers
2. asked by green_heart
3. 672 views
One kind of battery used in watches contains mercur(II) oxide. As current flows, the mercury oxide is reduced to mercury.HgO(s)
1. 1 answer
2. asked by Steve
3. 668 views
Hannah took a trip to visit her cousin. She drove 120 miles to reach her cousin's house and the same distance back home. What
1. 7 answers
2. asked by Angie
3. 668 views
i am currently writing my essay and i am about to put an example from the book Julius Caesar.what is the "protocol" how do i put
1. 1 answer
2. asked by ton
3. 654 views
I have no idea what to put under my experience section of my resume? Should I just exclude it from the resume? I have no working
1. 3 answers
2. asked by Chopsticks
3. 652 views
I'm doing a powerpoint presentation and I can't get the music to play throughout the whole entire presentation can you help me
1. 2 answers
2. asked by Brandis
3. 649 views
2.Which of the following sentences contain Noun Clauses and which contain adverbial clauses?a.Liz accepted [that she would never
1. 2 answers
2. asked by Nora
3. 646 views
Act2 scene4Macduff:They were suborn'd: Malcolm and Donalbain, the King's two sons, Are stol'n away and fled, which puts upon
1. 2 answers
2. asked by sh
3. 643 views
Using presentation software, when do you use certain layouts? I am looking for the "why" and "when" here, not the "how to." I am
1. 0 answers
2. asked by megan
3. 640 views
A colony of germs grows exponentially. It starts at 500 germs. After 8 minutes there are 600 germs. When will there be 1000
1. 1 answer
2. asked by Ana
3. 637 views
can you please correct my personifitcation poem? please? for any mistakes?? thank you!The Wild River The river breaths heavily
1. 3 answers
2. asked by john
3. 635 views
can i please get some help on this question,what effect did the Bakke decision have on affirmative action? a. it legalized
1. 2 answers
2. asked by history
3. 629 views
underline the phrases in the following sentence and circle the non- finite verb,if any.Given a chance, Susan would like to go on
1. 2 answers
2. asked by rita
3. 626 views
Why did the Watergate break-in occure?a. the Nixon White House wanted to get Daniel Ellsberg's psychiatric records b. the
1. 1 answer
2. asked by history
3. 625 views
Suppose that Keystone is a firm in perfectly competition ski resort business. If all Keystone’s input price unexpectedly
1. 2 answers
2. asked by Anonymous
3. 615 views
I want to apologize for being bothersome the other day. I know that you probably became really irritated with me and I'm sorry.
1. 3 answers
2. asked by Kara
3. 613 views
Calculate the hydrogen ion concentration of a 2.30×10^-1 M solution of the strong base RbOH. Round your answer to 3 significant
1. 1 answer
2. asked by ray
3. 611 views
Okay,mol KHP = (0.7719)(mol KHP/204.2g KHP) = .0038mol Since this is a titration then the moles of NaOH = the moles of KHP M =
1. 1 answer
2. asked by Steve
3. 607 views
How do I complete the square for this problem?? It's on translating conic sections.x^2-4x+y^2+2y=-1
1. 2 answers
2. asked by Kit
3. 590 views
What is another way to say waging war? I used the theasurus to find a word that meant the same as waging but the search results
1. 2 answers
2. asked by Kara
3. 590 views
Suppose your community has 4512 students this year. The student population is growing 2.5% each year. Write an equation to model
1. 1 answer
2. asked by Angie
3. 577 views
Homonym riddlesWhy is Sunday the strongest day?
1. 2 answers
2. asked by Anonymous
3. 574 views
utilities expense in the catergorie income statement. i think. if not is it owner equity or balance sheet.
1. 1 answer
2. asked by kneon
3. 569 views
3. In foreign affairs, perhaps Nixon's greateast accomplishment wasa. abandoning realpolitik, or practical politics b. bringing
1. 3 answers
2. asked by history
3. 569 views
During a survey, shoppers at a local mall were asked, "Which Baskin Robbins ice cream is your favorite flovor?" Determine
1. 2 answers
2. asked by Anonymous
3. 566 views
need an interesting fact on vincent van gogh.
1. 1 answer
2. asked by Hayley
3. 564 views
Where do you normally find information for topics that interest you? How do you know when sources are reliable? 150 words
1. 2 answers
2. asked by Anonymous
3. 561 views
the area of the circle was measured to be 29/30 of it original area.find the percentage error made in measuring area.
1. 0 answers
2. asked by abigail
3. 559 views
What is the ethical thing do if you have been counseling a client for a considerable length of time and then find out that your
1. 2 answers
2. asked by Linda
3. 558 views
If 14 counters are1/2, then what is the ONE? ___________ counters
1. 3 answers
2. asked by AKabba
3. 557 views
Why would the development of factions within a p0olitical party hurt that party's chances for success?
1. 1 answer
2. asked by lisa
3. 556 views
A gun that is spring-loaded shoots an object horizontally. The initial height of the gun is h=5 cm and the object lands 20 cm
1. 2 answers
2. asked by Malcom
3. 555 views
what catergorie capital and comission fall under. i think capital is owner equity and comission is income statement.
1. 0 answers
2. asked by nerd
3. 554 views
Ho can program evaluation can improve a program, consider both the manager and funder perspectives
1. 3 answers
2. asked by lisa
3. 552 views

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