Questions Asked on April 19, 2008

An apartment has a living room whose dimensions are 2.5 m 4.8 m 5.9 m. Assume that the air in the room is composed of 79%
1. 2 answers
2. asked by Pierre
3. 3,264 views
Find the area of a regular pentagon with radius 3cm. Round to the nearest tenth.No picture is given, but I believe a circle can
1. 1 answer
2. asked by Nikki
3. 3,055 views
1) An old wooden tool is found to contain only 11.9 percent of 14C that a sample of fresh wood would. How many years old is the
1. 2 answers
2. asked by Sandhya
3. 2,734 views
1) The number of radioactive nuclei in a particular sample decreases over a period of 15 days to one-seventeenth the original
1. 2 answers
2. asked by Sandhya
3. 2,120 views
When 0.500 g of copper(II) sulfate pentahydrate is heated at a temperature of 300°C for twenty minutes it loses some water of
1. 2 answers
2. asked by Ginger
3. 2,021 views
Which group shows the correct order of first ionization energy?Ca > Na > K Al > Si > P K > Ca > Ge Na > P > Cl Cs < Rb < Na I
1. 2 answers
2. asked by Ginger
3. 1,980 views
What mass of Ag2CO3 would be found in 1.4 L of a saturated solution if the Ksp of Ag2CO3 is 8.2 x 10-12?My Work: SInce mass =
1. 2 answers
2. asked by Reindier
3. 1,854 views
1) Find the exact value of cos 105 degrees by using a half-angle formula.2)Find the solution of sin 2theta = cos theta if 0
1. 1 answer
2. asked by Lucy
3. 1,749 views
For the following electrochemical cell:Fe(s)/Fe2+(aq)//MnO4–(aq), Mn2+(aq)/ Pt(s) Which letter corresponds to the correct
1. 10 answers
2. asked by Matt
3. 1,680 views
Three moles of a monatomic ideal gas expand adiabatically, and its temperature decreases from 430 to 160 K.(a) What is the work
1. 1 answer
2. asked by Ron
3. 1,658 views
For the following balanced equation: 2 Ag+ (aq) + Cu(s) Cu2+ (aq) + 2 Ag(s)Which letter corresponds to the correct cell notation
1. 3 answers
2. asked by Matt
3. 1,657 views
The artificial sweetener NutraSweet is a chemical called aspartame (C14H18N2O5).(a) What is its molecular mass (in atomic mass
1. 4 answers
2. asked by Ron
3. 1,649 views
What is the percent ionization of a 1.38 mol/L weak acid if its Ka = 2.7 x 10-6? Answer to two (2) decimal places.I know what
1. 3 answers
2. asked by Anna
3. 1,588 views
1)Find the exact value of sin 165 degrees.Answer: (sqrt6 + sqrt2)/4 2) Simplify: (4m/5n^2)- (n/2m) Answer: (8m^2-5n^3)/10n^2m
1. 1 answer
2. asked by Lucy
3. 1,469 views
Specify the number of unpaired electrons for each of the species shown below.CuCl2- (linear) Ni(NH36) 2+ NiCl4 2- (tetrahedral)
1. 1 answer
2. asked by Ginger
3. 1,424 views
The temperature of a monatomic ideal gas remains constant during a process in which 4500 J of heat flows out of the gas. How
1. 3 answers
2. asked by Pierre
3. 1,346 views
If the concentration of Pb2+ is found to be 2.3 x 10-9 mol/L in a saturated solution of Pb3(PO4)2, what is the Ksp of Pb3(PO4)2
1. 8 answers
2. asked by Ericka
3. 1,285 views
For the following balanced equation: 2 Ag+ (aq) + Cu(s)--> Cu2+ (aq) + 2 Ag(s)Which letter corresponds to the correct cell
1. 1 answer
2. asked by Matt
3. 1,280 views
Find cos theta if sin theta = 3/5 and 90 degrees<theta<180 degrees.Is the answer -sqrt34/5? Appreciate you checking my anwers.
1. 1 answer
2. asked by Lucy
3. 1,215 views
Verify that (sec theta/sin theta)(cot theta/csc theta) = csc theta is an identity.Thanks
1. 1 answer
2. asked by Lucy
3. 1,126 views
24 mL of 0.39 mol/L acetic acid is titrated with a standardized 0.33 mol/L KOH solution. Calculate the pH of the solution after
1. 3 answers
2. asked by Ericka
3. 1,104 views
Who is to blame for the death of Romeo and juliet?My clues i think are, Friar, Nurse, Fate, Parents, mercuito, tybalt,prince and
1. 1 answer
2. asked by joe
3. 1,069 views
If you're familiar with James Baldwin please help me. I need to identify his writing style. So far I got something in between
1. 1 answer
2. asked by Dan
3. 1,065 views
A runner weighs 560 N (about 130 lb), and 74% of this weight is water.(a) How many moles of water are in the runner's body?
1. 1 answer
2. asked by Mack
3. 1,056 views
Find the exact value of cos 375 degrees.Answer: (sqrt6 + sqrt2)/4 Is this correct?
1. 1 answer
2. asked by Lucy
3. 1,051 views
If the molar mass of monatomic deuterium (D) is 2.0141 g, then what is the density of diatomic deuterium (D2) gas at 25.0°C and
1. 1 answer
2. asked by Ginger
3. 1,028 views
Which of the following expressions are not equal to 1?A) sin^2 theta + cot^2 theta sin^2 theta B) (sin^2 theta/1-cos theta)-cos
1. 1 answer
2. asked by Lucy
3. 981 views
I'm doing a report on the red panda, and I have to explain why the organism is classified in that group. The red panda's species
1. 1 answer
2. asked by Monique
3. 977 views
y = sin(-3x + 3)Amplitude = Period = Two x- intercepts = y - intercept = Domain = Range = Shift along x = Shift along y = Kind
1. 1 answer
2. asked by Anna
3. 919 views
whyat area in North America was point of contention between FRANCE / ENGLAND?
1. 1 answer
2. asked by kilo
3. 911 views
Show that the rectangle with the largest area that is inscribed within a circle of radius r is a square. Find the dimensions and
1. 2 answers
2. asked by Evie
3. 910 views
According to one set of measurements, the tensile strength of hair is 196 MPa, which produces a maximum strain of 0.400 in the
1. 0 answers
2. asked by Erin
3. 888 views
Which of the following elements has the largest known oxidation number (in magnitude)?Pt Au Os Fe Ru
1. 2 answers
2. asked by Ginger
3. 871 views
Find the exact value of sin(theta/2) if cos theta = 2/3 and 270 degrees<theta<360 degrees.Answer: sqrt6/6
1. 1 answer
2. asked by Lucy
3. 864 views
What is the output of the following C++ code?p = list; while (p!=NULL) cout << p->info << " "; p = p->link; cout << endl;
1. 1 answer
2. asked by Anonymous
3. 856 views
1. A stone is dropped from rest into a well. The sound of the splash is heard exactly 1.50 s later. Find the depth of the well
1. 1 answer
2. asked by chris adison
3. 841 views
Why are complex ions of Zn+2 colorless?
1. 1 answer
2. asked by Ginger
3. 826 views
solve the equatione^2 ln x - ln (x+2) = 8/3
1. 3 answers
2. asked by Lauren
3. 802 views
Select one strategy from your list. Cultural DiversityThen How can this strategy be applied to both types of learners you
1. 7 answers
2. asked by Dawn
3. 800 views
Which of the following elements can form chemical compounds. CHECK ALL THAT APPLY.Xe Rn Kr Ne H He Is this a trick
1. 2 answers
2. asked by Ginger
3. 797 views
1)Ethanol is made by the fermentation of sugar.(a)Suggest a temperature for carrying out the fermentation and explain your
1. 0 answers
2. asked by Anonymous
3. 746 views
1)Ethanol is made by the fermentation of sugar.(a)Suggest a temperature for carrying out the fermentation and explain your
1. 1 answer
2. asked by Anonymous
3. 746 views
An insect population P in a certain area fluctuates with the seasons. It is estimated that P= 17,000 + 4500sin (pi)(t)/52, where
1. 2 answers
2. asked by Lucy
3. 743 views
Hi, my history task for this weekend is to write an essay on this topic:"Women in World War II: An important step in the women's
1. 2 answers
2. asked by Rachael
3. 742 views
If the concentration of Pb2+ is found to be 2.3 x 10-9 mol/L in a saturated solution of Pb3(PO4)2, what is the Ksp of Pb3(PO4)2
1. 1 answer
2. asked by Anna
3. 712 views
State the phase shift of y=cos(theta-[pi/3]). Then graph the function.I know that you cannot graph on this site but how do I
1. 2 answers
2. asked by Lucy
3. 689 views
What new tactic of the war was introduced by Sherman's " march to the sea " ?
1. 3 answers
2. asked by Jessica
3. 684 views
24 mL of 0.39 mol/L acetic acid is titrated with a standardized 0.33 mol/L KOH solution. Calculate the pH of the solution after
1. 1 answer
2. asked by Ericka
3. 681 views
Which of the following coordination compounds will most likely form a precipitate when treated with an aqueous solution of
1. 1 answer
2. asked by Ginger
3. 678 views
please check my answer thank youTrue or Faise I said True Cilia prevent the entrance of pathogens into the body by providing an
1. 1 answer
2. asked by Helana
3. 674 views
I'm in 5th grade. No idea about music. My teacher asked me to write papers about music, 10-15 songs, that have interesting and
1. 3 answers
2. asked by Vinnie
3. 667 views
4)Un=0.5*1.2^nSketch this for n= (0,1,2,3,4,5) How do you sketch this?
1. 0 answers
2. asked by Anonymous
3. 664 views
y = cos(4x/3 minus 1)amplitude? Period? Two x - intercepts? y-intercept? Domain? Range? Shift along x? Shift along y? Kind of
1. 1 answer
2. asked by Anna
3. 653 views
what aspect of the compromise of 1850 was the most contentious ?
1. 1 answer
2. asked by Jessica
3. 640 views
A tank contains 0.450 kg of oxygen(O2) compressed into a volume of 2.32 L. Estimate the gas pressure (in atm) inside the tank at
1. 1 answer
2. asked by Kate
3. 627 views
y = -2sin(x) - 4Amplitude =_________ Period = __________ Two x- intercepts = __________ y - intercept = _____________ Domain =
1. 3 answers
2. asked by Rendier
3. 623 views
Calculate the equilibrium concentration of all ionic aqueous species in a solution containing 1.30 M HCl and 4.0 M C6H5OH
1. 3 answers
2. asked by Gloria
3. 618 views
Please check this question for me thanksWhat method of sterilization uses the same agents as are used to disinfect instruments ?
1. 1 answer
2. asked by Mersaides
3. 611 views
I need help finding info. on the following I am searching online snd not having a lot of luck on what i need.including speaker
1. 1 answer
2. asked by Dawn
3. 601 views
The artificial sweetener NutraSweet is a chemical called aspartame (C14H18N2O5).(a) What is its molecular mass (in atomic mass
1. 1 answer
2. asked by Kiante
3. 596 views
Find the temperature at which the reaction below is spontaneous given this data:Hfo of NH3(g) = - 46 kJ/mol, So of NH3(g) =
1. 0 answers
2. asked by Ericka
3. 591 views
what event(s) helped lead the USA to the joining World War two ?
1. 2 answers
2. asked by Sally
3. 591 views
What is the sum of geometric and optical isomers that the complex ion Co(en)2Cl2+ exhibits?How do I begin to figure this out?
1. 0 answers
2. asked by Ginger
3. 590 views
Here is the full lab:Lab: Electrolytic Cells Purpose: The purpose of this experiment is to test the method of stoichiometry in
1. 5 answers
2. asked by Rendier
3. 582 views
please check my answer thanksAn objective sign is one that A can be observed by another person B precedes a disease C is felt by
1. 1 answer
2. asked by Helana
3. 582 views
why do we celebrate earth day? is it important to celebrate earth day?
1. 1 answer
2. asked by Dj
3. 574 views
24 mL of 0.39 mol/L acetic acid is titrated with a standardized 0.33 mol/L KOH solution. Calculate the pH of the solution after
1. 2 answers
2. asked by Ericka
3. 572 views
A runner weighs 560 N (about 130 lb), and 74% of this weight is water.(a) How many moles of water are in the runner's body?
1. 1 answer
2. asked by James
3. 564 views
Find sec theta if tan theta =1/4 and 180 degrees<theta<270 degrees.Answer: sqrt17/4 Thanks
1. 1 answer
2. asked by Lucy
3. 555 views
Grammar cheack please:The Australian society is becoming excessively like society in the United states of America Thanks Minnie
1. 1 answer
2. asked by Minnie
3. 532 views
i am not quite clear why the No child left behind act has been called unconstitutional. Many articles that I've read say that it
1. 1 answer
2. asked by maggie r
3. 532 views
In the book it says:ce livre est à toi could I not also say: ce livre est le tienne or instead of: ce livre est à vous ce
1. 2 answers
2. asked by Anonymous
3. 531 views
What is the purpose, advantages, disadvantages, and type of feedback provided by line-item, performance, and program budgets,
1. 1 answer
2. asked by Lauren
3. 519 views
Explain the politics of consensus
1. 2 answers
2. asked by Tish
3. 518 views
May opened a restaurant. After a few days, she got numerous complaints from customers that it was too hot in the restaurant. She
1. 0 answers
2. asked by Moon
3. 506 views
what is the four letter name for "notation for subsequent multiple authors in a citation?".Is it IBID? Thanks
1. 3 answers
2. asked by Peter
3. 502 views
What was the name of the fakegovernment of france and who led it? Thanks so much. ^-^
1. 1 answer
2. asked by Paige
3. 497 views
what is body composition measured by using calipers?
1. 1 answer
2. asked by eli
3. 496 views
Un=0.5*1.2^nSketch this for n= (0,1,2,3,4,5) How do you sketch this?
1. 1 answer
2. asked by Anonymous
3. 492 views
Austin took a shower from 7:56 to 8:08 and used sixty gallons of water. Assuming the same rate of water usage, how much water
1. 3 answers
2. asked by Dj
3. 490 views
What are the main responsibilities of a state?
1. 3 answers
2. asked by Rose
3. 489 views
I need someone else's response to this scenario of the three questions at the end to compare.Mack Moller was supervisor of the
1. 1 answer
2. asked by Ree
3. 488 views
How many liters of hydrogen gas are needed to generate 90.0g of water 25C and 1atm pressure?What are the conversions I need?
1. 1 answer
2. asked by Ginger
3. 484 views
Do you know a website where I can find this equation? (disposition of tin)? I have searched through many webpages but got no
1. 1 answer
2. asked by Rendier
3. 482 views
I am reasearching Fast Food companies in Australia. I need to know the amount of homegrown fast food companies in Australia and
1. 1 answer
2. asked by Radella
3. 481 views
What country did cuba win its independence from at the start of the 20th century ?
1. 1 answer
2. asked by Jason
3. 478 views
What is the primary difference between a performance budget and a program budget? Why does a human services agency need to know
1. 0 answers
2. asked by Lauren
3. 475 views
An engine has an efficiency of 59% and produces 5300 J of work. Determine each of the following.(a) the input heat J (b) the
1. 1 answer
2. asked by Kiante
3. 474 views
Find the exact value of: cos315 degrees.Is the answer sqrt of 2/2? Thanks
1. 1 answer
2. asked by Lucy
3. 455 views
How can knowing the cost per output and cost per outcome benefit a human services agency?
1. 1 answer
2. asked by Lauren
3. 451 views
Find the exact solution(s) of the system: (x^2/4)-y^2=1 and x=y^2+1Answer:(4,sqrt3),(4,-sqrt3) 2)Write an equation for an
1. 0 answers
2. asked by Lucy
3. 444 views
What type of FONT is required for academic papers please?Thank you
1. 2 answers
2. asked by Wanda
3. 437 views
please I really need statistics and exact examples for my debate. I can not go up there and say many people think we are too
1. 1 answer
2. asked by Minerva
3. 428 views
Which reaction has been chosen as the 'standard' against which every other reaction is measured?A. Li+ + e– --> Li B. F2 +
1. 2 answers
2. asked by Matt
3. 423 views
Do you have a book?Have you a book? Have you got a book? I don't have a pen. I have not a pen. I haven't got a pen.
1. 1 answer
2. asked by John
3. 418 views
How many liters of hydrogen gas are neede to generate 90.0g of water of 25.0°C and 1 atm pressure?What is the equation I can
1. 1 answer
2. asked by Ginger
3. 415 views
which group did the virginia plan favor ?
1. 1 answer
2. asked by Dona
3. 413 views
what was the result of the jackson's indian removal act ?
1. 1 answer
2. asked by Moise
3. 410 views
Please revise this sentance:That we the Australian people are becoming to excessively like the United States of America Thanks
1. 3 answers
2. asked by Minerva
3. 409 views
1)AP has U6=12.5 and U19=32a+5d=12.5 (&) a+18d=32 (2) (2)-(1), d=1.5 therefore, a=5 (a)What is the nth term?Tn=5+(n-1)1.5
1. 1 answer
2. asked by Anonymous
3. 405 views

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