Questions Asked on March 6, 2009

An unknown radioactive element decays into non-radioactive substances. In 420 days the radioactivity of a sample decreases by 39
1. 1 answer
2. asked by Kim
3. 6,217 views
The density of a gas is 2.0 grams per liter at STP. Its molar mass is approximately?
1. 3 answers
2. asked by Crystal
3. 2,555 views
unless you are luckier than most,hundreds of other people will also have discovered your natural paradise.a)replace you with one
1. 8 answers
2. asked by jessica
3. 2,465 views
The purpose of a gas trap in the Diels-Alder reaction set up is toA. Trap oxygen gas B. Trap the diels alder product C. Trap
1. 1 answer
2. asked by nilee
3. 1,956 views
what correction should be made to this sentence?one of the lifelong memories many of us share are the moment we obtained a
1. 4 answers
2. asked by jessica
3. 1,843 views
what is the volume of a 2.00 gram sample of helium gas at STP?
1. 1 answer
2. asked by crystal
3. 1,808 views
what correction should be made?some just look forward to the perspect of watching birds and animals,such as rabbits or deer,in
1. 5 answers
2. asked by jessica
3. 1,745 views
How do I solve for the elimination method: 5x + 3y= -7 and 7x - 2y =13 (step 1); 10x + 6y =-14 and 21x -6y = 39 ( step 2),
1. 1 answer
2. asked by A.W.
3. 1,408 views
how can i find the perimeter of a semi circular flower bed of diameter 20m?
1. 5 answers
2. asked by help
3. 1,301 views
I need predict the bond type for NaCN. Also, for covalent molecules, specify also whether the molecule as a whole is polar?
1. 1 answer
2. asked by Aileen
3. 1,277 views
The purpose of adding concentrated H2SO4 to the Diels-Alder adduct was to:A. hydrolyze the product to make the product
1. 1 answer
2. asked by nilee
3. 1,208 views
Review the variety of indoor pollutant hazards posted on the EPA Web site. Describe at least three potential indoor air quality
1. 1 answer
2. asked by Anonymous
3. 1,176 views
On Tuesday Grac4e's flower shop sold 124 flowers. At the end of the day, there were 237 flowers left in the shop. Grace use the
1. 1 answer
2. asked by Carol
3. 1,137 views
What side do you start on in a doubles game?even side, odd side, or it all depends on the score? is is even side?
1. 4 answers
2. asked by Anonymous
3. 1,136 views
What are the advantages of using v= f(L2- L1) rather than using v= 4f L1 ?
1. 3 answers
2. asked by coolio
3. 1,124 views
What are the differences between -ate, -ide, -ite, and the other suffixes? What are some ways of remembering? Thank you for
1. 1 answer
2. asked by Josh
3. 1,121 views
What are 5 foods from before the French Revolution (MUST reflect the ideas of the time)5 foods from after French Revolution
1. 0 answers
2. asked by Larry
3. 1,108 views
can a shareholder get his dividends after being dismissed by the others?Thnx!
1. 0 answers
2. asked by Sabi
3. 1,099 views
solve each system of equations algebraically:x^2+y^2=18 x+y=4
1. 1 answer
2. asked by jojo
3. 1,091 views
an 80 foot flag pole casts a 30 foot shadow . find the height of the tree if its shadow is 9 feet
1. 2 answers
2. asked by erika
3. 1,081 views
1. What do the pictures remind you of?They remind me of my childhood. They remind me of love. They remind me of life. They
1. 1 answer
2. asked by John
3. 1,050 views
What are the differences between -ate, -ide, -ite, and the other suffixes? What are some ways of remembering? Thank you for
1. 1 answer
2. asked by Josh
3. 1,002 views
explain the role of government in a free enterprise system?
1. 1 answer
2. asked by jerson
3. 880 views
Look at the picture on the left. This is a plant. there are two leaves on the plant. They are new buds. The buds seemed to have
1. 1 answer
2. asked by John
3. 860 views
Why is 4-chlorophenol soluble in 2.5M NaOH solution, but not in water?A. Phenol is a weak acid so it can be deprotonated under
1. 0 answers
2. asked by nilee
3. 800 views
how is the toal number or sides of the faces related to the number of edges ?(my little sister needs help)
1. 3 answers
2. asked by Dawn
3. 796 views
1. What's your future job?I want to be an architect. My future job is an architect. (Are the questions and answers all correct?)
1. 1 answer
2. asked by John
3. 793 views
Even if you don't live in Missouri could you still please help me with this question.Which of the following cities have been
1. 2 answers
2. asked by Anonymous
3. 774 views
Good evening everyone, I just wanted to know why people on this computer keep getting blocked from this site...I tried to ask
1. 8 answers
2. asked by mysterychicken
3. 762 views
what [I-]should be maintained in KI(aq) to produce a solubility of 1.3*10^-5 mol PbI2/L when PbI2 is added?
1. 3 answers
2. asked by jimmy
3. 757 views
In order to obtain pure synthetic plant hormone, a 2:1 mixture of water andethanol is used as the crystallizing solvent. Why is
1. 2 answers
2. asked by nilee
3. 754 views
How did colonization affect the governments of modern African nations?Thank you for helping
1. 2 answers
2. asked by popcorn :)
3. 739 views
please simplifysin (7pi/6 -x) + cos (2pi +x)
1. 1 answer
2. asked by Rick
3. 727 views
Three forces acting on an object are given by F1 = ( 1.95i - 1.60j ) N, F2 = ( - 4.50i - 3.25j ) N, and F3 = ( 46.0j ) N. The
1. 1 answer
2. asked by mightymouse
3. 718 views
Please any one help me which one of the following is correct?When winter comes, the days get colder. When winter comes, the days
1. 4 answers
2. asked by ramesh reddy
3. 716 views
Discuss current trends affecting social welfare. Do modern trends favor the solution of social issues? What are the most
1. 1 answer
2. asked by connie
3. 701 views
I've removed your complex post for two main reasons. You refer to materials (a tutorial) for which we have no access, and you
1. 0 answers
2. asked by Ms. Sue
3. 698 views
The average emf induced in the secondary coil is 0.12 V when the current in the primary coil changes from 3.8 to 1.1 A in 0.14
1. 1 answer
2. asked by nj
3. 690 views
The Diels-Alder reaction is classified as a:A. polar reaction B. radical reaction C. substitution reaction D. pericyclic
1. 0 answers
2. asked by nilee
3. 687 views
suppose sinx=1/5, cosy=2/3, and x and y are in the first quadrant. determine sin (x+y)
1. 1 answer
2. asked by sh
3. 685 views
Which of the following products of the acid-catalyzed elimination of 2-pentanol isthe Hoffmann elimination product? A.
1. 1 answer
2. asked by nilee
3. 678 views
Potassium tert-butoxide is a common base for E2 reactions because it is_______. A. weak base B. an organic base C. a strong base
1. 0 answers
2. asked by nilee
3. 676 views
Sam had 2 pounds of turkey and 3 pounds of ham. He will use one fifth pound of turkey for each sandwich. How many turkey
1. 1 answer
2. asked by Deja
3. 645 views
x-8y=18-16x+16y=-8
1. 1 answer
2. asked by sierra
3. 645 views
determine the teachercertification/licensure requirements for the state you would like to teach in. I picked wisconsin and i put
1. 4 answers
2. asked by scooby91320002
3. 644 views
What do you get when you mix nickel sulfate and sodium carbonate?
1. 1 answer
2. asked by Leroy
3. 642 views
What is an example of a non-living thing made up of cells?
1. 2 answers
2. asked by Emma
3. 624 views
solve each system of equation algebraically:x2+y2=18 x+y=4
1. 3 answers
2. asked by jojo
3. 622 views
Where would one expect to see a peak corresponding to a carbonyl groupA. 1350-1500 B. 1625-1800 C. 1700-1825 D. 1775-1900 E.
1. 2 answers
2. asked by nilee
3. 614 views
Find the x-intercepts of f(x)=4x^2-20.Give an exact answer using radicals as needed. Rationalize all denominators. Express
1. 1 answer
2. asked by Kelly
3. 606 views
How can i improve my intellectual wellness? list three if you can
1. 1 answer
2. asked by Growler
3. 603 views
Predict what would happen to a red blood cell placed in each of the following external solutions. Would it shrink, swell, or not
1. 1 answer
2. asked by erin
3. 601 views
Have to do an enlargement project and enlarge an everyday item by 10 times it original size. Part of grade is level of
1. 1 answer
2. asked by Marissa
3. 597 views
How would I go about solving this equation algebraically?Find the equation of the parabola y=ax^2 + bx+c that passes through the
1. 2 answers
2. asked by Chris
3. 596 views
Solve.|3w-1| = |3w| or abs(3w-1) - abs(3w) I know you can use a calculator and find the answer easily, but we're supposed to
1. 1 answer
2. asked by Cyn
3. 587 views
1. After you take a look at the pictures below, say what reminds you of.2. Say your new hopes about the new year. 3. About What
1. 1 answer
2. asked by John
3. 586 views
Can someone give me an example of a metaphor
1. 3 answers
2. asked by bill
3. 584 views
For each product of the following unbalanced equations which reactant is limiting, and calculate the mass of each product that
1. 1 answer
2. asked by Chopsticks
3. 583 views
1. Jane has got 90 points. Mike has got 90 points as well. So Jane is as smart as Mike. They have the same degree of score.2.
1. 2 answers
2. asked by John
3. 583 views
Does an interview that I conducted for a research paper need to be sited on a reference page if the paper is written in APA
1. 4 answers
2. asked by JaneDawn
3. 582 views
Desrcibe what kennedy hoped to accomplish with the new frontier
1. 1 answer
2. asked by Anonymous
3. 569 views
Predict what would happen to a red blood cell placed in each of the following external solutions. Would it shrink, swell, or not
1. 0 answers
2. asked by erin
3. 559 views
if sin s = -5 /13and sin t -3/5 s is in QIII t is in QIV find tan (s-t) i got that tan (s-t)= 56/53 is that right? can someone
1. 1 answer
2. asked by John
3. 558 views
I am writing out ionic compounds. The compound given is Fe(subscript)2O(subscript)3. I noticed on the periodic table iron had a
1. 1 answer
2. asked by Ian
3. 557 views
You perform a Diels-Alder reaction using 2.0 g butadiene sulfone (MW=118.15g/mol), 1.2 g maleic anhydride (MW=98.06 g/mol) and
1. 0 answers
2. asked by nilee
3. 557 views
I am doing a power point on hydraulic brakes but I can't find any diagrams of a simple hydraulic brake that points out all the
1. 2 answers
2. asked by Nick
3. 557 views
Find x if 2^16^x = 16^2^xJust to make this clear, if you were reading this aloud, it would sound like this: if 2 to the power of
1. 1 answer
2. asked by Cassie
3. 554 views
What is the largest inlet in the United States?
1. 1 answer
2. asked by Maria
3. 549 views
What is the difference between Muslims and Arabs.
1. 3 answers
2. asked by krystle
3. 544 views
Its for a webdesign class at school. i already designed the interface in photoshop."Take your completed interface page and using
1. 0 answers
2. asked by mich
3. 541 views
Sorry this is my last question before I begin my final draft. Can you please explain to me what this means. I found it in a
1. 2 answers
2. asked by Michele
3. 532 views
When performing a dehydration reaction, what may be done to drive theequilibrium to the right: A. removal of the product as it
1. 3 answers
2. asked by nilee
3. 529 views
I think I have done all the corrections.Please could you tell me if there's anything else wrong. Thankyou Pour le petit
1. 1 answer
2. asked by valerie
3. 529 views
Order the following in order of increasing bond vibration frequency: O-H, sp3 C-H,sp C-H, sp2 C-H A. O-H < sp3 C-H < sp C-H <
1. 0 answers
2. asked by nilee
3. 527 views
In order for the E2 elimination of an alkyl bromide to occur, the β-hydrogen andthe bromide leaving group must have
1. 1 answer
2. asked by nilee
3. 526 views
problem:suppose a bacterium reproduces by binary fission every 20 minutes.the new cells survive and reproduce at the same rate.
1. 4 answers
2. asked by christopher crawford
3. 522 views
predict the bromination rates of the following aromatic compounds: Chlorobenzene, methoxybenzene, Nitrobenzene, Benzene and
1. 1 answer
2. asked by Poloko
3. 518 views
Could you please, please help me with this quick question thanks and god bless.IN line 72 what does Juliet's answer reveal about
1. 2 answers
2. asked by Anonymous
3. 514 views
What is the theoretical volume (at STP) of butene product that can be obtainedfrom the dehydration of 0.412 g of 2-butanol? (MW
1. 2 answers
2. asked by nilee
3. 510 views
1. Find what the two seeds said and match them.2. Choose the things (sentences) which are not suitable for the reading text. 3.
1. 1 answer
2. asked by John
3. 509 views
How many peaks would be expected in the 1H NMR spectrum for mesitylene?A. 2 B. 6 C. 3 D. 12 E. 9
1. 1 answer
2. asked by nilee
3. 503 views
Hi guys,I thought it would be due to aromaticity breaking difficulty? In the bromination reaction, why are the double bonds
1. 2 answers
2. asked by Laura
3. 500 views
What does the following sentence mean?:"Huit hommes habitent en bas." Does it mean, "Eight men live... low?.."? I'm not sure
1. 2 answers
2. asked by Anonymous
3. 500 views
How do I solve for elimination method on this problem: 0.3x - 0.2y=4 and 0.3x + 0.3y= 5/19. I know that multiply by 10 on both
1. 2 answers
2. asked by A.W.
3. 496 views
how do i find the area of a semi circle with a radius of 6 cm rounded to 2dp?
1. 1 answer
2. asked by hello
3. 495 views
In order for a Diels-Alder reaction to take place the diene must be in whatconformation? A. cis B. trans C. s-trans D. anti E.
1. 0 answers
2. asked by nilee
3. 493 views
5 song names from before French Revolution (3 can be made up, but MUST reflect the ideas of the time)5 song names from after
1. 0 answers
2. asked by Larry
3. 491 views
Could you please, please help me with this quick question thanks and god bless.IN line 72 what does Juliet's answer reveal about
1. 2 answers
2. asked by Anonymous
3. 490 views
¿Podría alguien repasar este párrafo?Pues, las corporaciones quieran usar aceite porque lo está más barato como energías
1. 1 answer
2. asked by Anonymous
3. 489 views
if acceleration is -9.8, initial velocity is 10, initial position of a point is +0.5m. then when does it pass y=0 and what is
1. 1 answer
2. asked by sweety
3. 481 views
If 9 counters are 1/3, then what is ONE?HELP PLEASE!!!!!!!!!!!!!:():
1. 2 answers
2. asked by marissa
3. 479 views
Predict what would happen to a red blood cell placed in each of the following external solutions. Would it shrink, swell, or not
1. 0 answers
2. asked by erin
3. 473 views
Bond vibration frequencies are directly related to:A. The amount of atoms in a compound B. The electronegativity of the atoms C.
1. 0 answers
2. asked by nilee
3. 470 views
If I want to say, "Anne likes when school closes and vacation begins," would the following be correct:"Anne aime quand l'ecole
1. 2 answers
2. asked by Anonymous
3. 467 views
1. She pecked at the ground and found the first seed. (the hen = she)2. Look at the rooster. He pecked at the ground and found
1. 1 answer
2. asked by John
3. 464 views
What are casual relationships??
1. 1 answer
2. asked by Jelani
3. 456 views
what is intellectual and physical mean in personal wellness?
1. 3 answers
2. asked by Growler
3. 450 views
5' C U A C C U C A G A U U C G C C U A C C U 3'What is the DNA sequence that encodes for the word for this protein? Be sure to
1. 1 answer
2. asked by Michelle
3. 449 views
(5a³b)²/10a²bHow would I begin solving this? Thank you!
1. 2 answers
2. asked by Cassie
3. 448 views
How do you use quotation marks when you're quoting a quote?
1. 1 answer
2. asked by Angie
3. 448 views

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