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Questions Asked on February 1, 2007

Given2Al2O3 (s) --> 4Al(s) + 3O2 (g) (standard enthalpy change= 3351.4 kJ) a) What is the heat of formation of aluminum oxide?
1. 1 answer
2. asked by Chris
3. 7,406 views
the question is.. why did the ghost decide to haunt city hall? urgh i don't fee like doing it so im hoping someone has the
1. 20 answers
2. asked by brooke
3. 5,154 views
What slowed down the U.S. entrance into World War 1? I already have many Americans simply did not want to send their sons to war
1. 1 answer
2. asked by Anonymous
3. 4,304 views
Butane, C4H10, is widely used as a fuel for disposable lighters. When one mole of butane is burned in oxygen, carbon dioxide and
1. 1 answer
2. asked by Chris
3. 2,660 views
find 3 consecutive integers such that the product of the second and third integer is 20Take three integers x, y, and z. The for
1. 1 answer
2. asked by chrisw
3. 2,022 views
degree 4zeros i & (1+i) constant term 12 How do I start this problem. Thanks A degree four polynomial will have the form (x^4
1. 1 answer
2. asked by Jen
3. 1,941 views
The sum of the reciprocals of two consecutive even integers is 11/60. Find the integers.......1/n + 1/(n+2) = 11/60 what is the
1. 1 answer
2. asked by Al
3. 1,713 views
Check my answers!This site needs a preview post option! And thanks for checking! 1. Classify each of the following pure
1. 1 answer
2. asked by Libby
3. 1,689 views
A region of ocean water having the same temperature and salinity throughout is what??
1. 1 answer
2. asked by Kaitlin
3. 1,494 views
Under what circumstances, if any, will a converging lens form an inverted image of a real object? Under what circumstances, if
1. 1 answer
2. asked by Lacy
3. 1,458 views
3x-4 to y+15is constant and y=3 when x=2 then when y=12, x equals? My answer was 13. Im not sure how to solve this question.
1. 0 answers
2. asked by DrBob222
3. 1,380 views
Starting with propane, show all the steps required to produce propanone.Anyone know how to answer that question? Please help!
1. 1 answer
2. asked by Mei
3. 1,291 views
A ball of mass .44 kg and speed of 4.5 m/s collides head-on with a .22 kg ball at rest. Assuming perfect elasticity, what is the
1. 0 answers
2. asked by sean
3. 1,278 views
You are the network administrator for an outdoor equipment wholesaler in Detroit, MI. You have three locations. One is the head
1. 1 answer
2. asked by ajay
3. 1,236 views
Does water with salt boils faster than plain waterYes, salt increases the waters boiling point and therefore a higher
1. 0 answers
2. asked by javier
3. 1,202 views
Explain what happens when you add sodium chloride to boiling water.I know that when sodium chloride is added to water, the
1. 0 answers
2. asked by Mercedes
3. 1,166 views
Are aspirin, starch and dextrose covalent or ionic?Do aspirin and or epsom salt conduct electricity? Any help with these
1. 3 answers
2. asked by Fidelia
3. 1,158 views
An electron's position is given by r = 4.00t i - 6.00t2 j + 5.00 k, with t in seconds and r in meters.(a) In unit-vector
1. 0 answers
2. asked by TechnoBoi11
3. 1,106 views
Thank you Ann!I had the equations and really was closing in on the answer... (stopping for 23 s is what really got me confused)
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2. asked by eric (new chem or physics prob. in)
3. 1,069 views
An archer shoots and arrow horizontally at a target 15m away. The arrow is aimed directly at the center of the target, but it
1. 1 answer
2. asked by Mike
3. 1,004 views
Basically, I'm confused on this. The sentence is below:The old English word handbook, for example, has slightly different
1. 0 answers
2. asked by Brittany
3. 988 views
Strontium metal is responsible for the red color in fireworks. Fireworks manufacturers use strontium carbonate, which can be
1. 1 answer
2. asked by Jess
3. 984 views
The following thesis statement indicates that the body of the speech will contain ____ numerals."Abraham Lincoln's speeches
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2. asked by Lisa
3. 958 views
what is the balanced equation for thereaction of aluminum selenide with water including the physical states reactants and
1. 0 answers
2. asked by donald
3. 956 views
What volume, in ml, of a 60% of HCl acid solution must be added to 100 ml of a 30% HCl solution to make a 36% HCl solution.We
1. 0 answers
2. asked by Ariel
3. 920 views
Why did Francis Scott write The Star Spangled Banner?http://www.francisscottkey.org/
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2. asked by Emily
3. 880 views
i need to find the definite integral from 0 to 2|b| of ....x divided by sqrt(x^2 + b^2) dx im having a lot of trouble, thanks in
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2. asked by tyler
3. 875 views
A .30kg softball had a velocity of 15m/s at an angle of 35 degrees below the horizontal just before making contact with the bat.
1. 0 answers
2. asked by Tammy
3. 867 views
How do you find the area and circumference of a circle.This site has a great explanation for finding area and circumference of a
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2. asked by Kris
3. 852 views
Can someone please show me step by step how to do these. I've read the book and there examples and It is just not clicking.Direc
1. 1 answer
2. asked by Jasmine20
3. 844 views
A radar antenna is tracking a satellite orbiting the earth. At a certain time, the radar screen shows the satellite to be 159km
1. 0 answers
2. asked by leann
3. 817 views
Please check my history. Some of them I don't know.If the statement is true, write "true". If it is false, write the word or
1. 1 answer
2. asked by Anonymous
3. 793 views
A ball rolls horizontally off the edge of a tabletop that is 1.60 m high. It strikes the floor at a point 1.58 m horizontally
1. 0 answers
2. asked by TechnoBoi11
3. 779 views
We have to translate the following sentences into spanish [we're working on subjunctive -- adverbial clauses.]He will insist
1. 0 answers
2. asked by Christ
3. 742 views
There is no change of angle (bending) of the light rays. Each wavelength is slowed the same amount in the glass and is increased
1. 0 answers
2. asked by PsyDAG
3. 734 views
I have a project on the early Christian catacombs. I have to describe the elements of (line, shape,value, etc)and compare these
1. 0 answers
2. asked by Aubrey
3. 730 views
which exhibits hydrogen bonding (there can be more than 1)1. IF7 2. SiH4 3. CH3CH2OH 4. (CH3)2CHOH 5. PCl3 6. CH3CHCHCH3 * do
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2. asked by christine
3. 724 views
I have been absent and I do not get my English homework!¢¾Sandra Thank you for using the Jiskha Homework Help Forum. That
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2. asked by Sandra
3. 723 views
is 2 physical? what's 3?I didn't quite get that right. It should be extensive and intensive properties. It is true that density
1. 1 answer
2. asked by Bryan
3. 710 views
Hi, does the electron transport chain actually PRODUCE ATP? It says on my sheet that 4 molecules of ATP are produced in this
1. 0 answers
2. asked by student
3. 700 views
T is the set of all positive numbers n such that n <50 and the square root of n is an interger. What is the median value of the
1. 1 answer
2. asked by marco
3. 695 views
If 100mL of 1mol HCL is mixed with 100 mL of 1mol NaOH, a temp rise of 6.2C occurs. What temp change will be obserbed, if under
1. 0 answers
2. asked by susie
3. 687 views
Check my answers, thanks!Roll 2 dice. What is the probaility of rolling and getting: A) a sum less than or equal to 6 =
1. 0 answers
2. asked by Heath
3. 685 views
You are the network administrator for an electrical goods importer in Brandon, FL. You have a single Windows Server 2003 system
1. 2 answers
2. asked by ajay
3. 670 views
How important is it that members of a society share certain views in common?Very important! If members of a society don't have
1. 0 answers
2. asked by guest!
3. 650 views
Check my answers please!Thanks a lot. Five students reported that the previous night they slept: 7,8,7,10,9 hours. Calculate the
1. 0 answers
2. asked by Jake
3. 640 views
settler who claimed land through the homestead acti think native americans Sorry. The Native Americans weren't considered
1. 0 answers
2. asked by myia
3. 624 views
How many moles of aluminum is needed to form 3.4 moles of aluminum oxide?3.4 mol Al2O3 x (2 mol Al/1 mol Al2O3) = ?? mol Al.
1. 0 answers
2. asked by Jacob
3. 620 views
What do you think Oedipus Rex and A Raisin in the Sun imply about Sophocles’ and Lorraine Hansberry’s cultural identity?"If
1. 0 answers
2. asked by stacy
3. 604 views
You are the network administrator for a telecommunications company in Rochester, New York. The network consists of two Windows
1. 1 answer
2. asked by ajay
3. 602 views
A retail outlet purchased 400 printers at a list price of $80 less 6%, 3%. The Gross Profit Margin on the printers was 50%.
1. 0 answers
2. asked by Geoff
3. 601 views
Is "have caused" a phrase?Thank you for using the Jiskha Homework Help Forum. What you have is a "partial" which is actually the
1. 0 answers
2. asked by Sandra
3. 595 views
I have this question that i am having trouble with..Please helpSally and 3 friends each bought a pumpkin at a local produce
1. 0 answers
2. asked by Sarah
3. 581 views
Two cars,A and B, are traveling in the sam direction, although car A is 208m behind car B. The speed of A is 24.4 m/s, and the
1. 0 answers
2. asked by leann
3. 577 views
The molar mass of a non-dissociated, non-volatile compound is to be determined by dissolving 5.00 g of the compound into 50.0 g
1. 0 answers
2. asked by Jason
3. 574 views
What will be the vapor pressure at 25 degree C of a 30.0% (by mass) solution of glucose, C6H12O6 (a non-electrolyte-molar mass =
1. 0 answers
2. asked by AndrewN.
3. 573 views
You are the network administrator for a chemical wholesaler in Spokane, Washington. You have a single Windows Server 2003 system
1. 1 answer
2. asked by ajay
3. 572 views
A motorist drives north for 35.0 s at 25.0 m/s and then stops for 23.0 s. He then continues north traveling 13.0 m in 2.00 s.
1. 0 answers
2. asked by eric
3. 567 views
The kinetic energy of a particle of mass m is found by taking one half of the product of the mass and the square of the
1. 0 answers
2. asked by angela
3. 559 views
is this true or false?5) Density has units of grams per cubic centimeter. It may have units of g/cc. But the unit used is
1. 0 answers
2. asked by Bryan
3. 555 views
What year did the Space Center at Cape Canaveral start? Please answer this question!Go to http://www.google.com and enter
1. 0 answers
2. asked by Emily
3. 547 views
ten over eight = what over ten?????please help me!!!!!!!!!! 10 / 8 = x / 10 This means that 8 * x = 10 * 10 Solve for x.
1. 3 answers
2. asked by jess
3. 539 views
When you configure volume shadow copy, which of the following parameters cannot be configured
1. 0 answers
2. asked by ajay
3. 537 views
If a pulley is 57% efficient and you lift a 35kg box 5m how much work do you do?1716.75 N*m A crane that is 13m long and is at a
1. 1 answer
2. asked by anonymous
3. 529 views
A concluding strategy which helps to promote unity within a speech isa)a summary of main points b)a rhetorical question c)a
1. 0 answers
2. asked by Tammy
3. 527 views
How do you find the volume of a sphere with its radius 4 cenimeters and its hight 15 cenimeters.Check this site for the formula.
1. 0 answers
2. asked by Kris
3. 523 views
In one Minute of time, how does the earth rotate in minutes or seconds of longitude?rotation=360 degrees/ number minutes in the
1. 0 answers
2. asked by mike
3. 523 views
You are working on a Windows Server 2003 system that has just been installed by another administrator. The administrator
1. 0 answers
2. asked by ajay
3. 514 views
Why are aspirin and ibuprofen effective in treating headaches?Thank you for using the Jiskha Homework Help Forum. Aspirin and
1. 0 answers
2. asked by nathalie
3. 512 views
Is a thesaurus the same as a dictionary?Nope: http://www.onelook.com/?w=thesaurus&ls=a http://www.onelook.com/?w=dictionary&ls=a
1. 0 answers
2. asked by Kim
3. 509 views
proofread- thanks!revelado a Dali en un sueno. Esto tambien acentua que no era los clavos que sostenian a Cristo en la cruz,
1. 0 answers
2. asked by Laura
3. 494 views
What is more salty the gulf of mexico or the gulf of california? Why?You need to check this: Only one fresh water river flows
1. 0 answers
2. asked by Regine
3. 494 views
Using information from the periodic table, how can you find out which chemical element another (Uuh) resembles?It resembles
1. 0 answers
2. asked by L0bster_quadrille
3. 491 views
i need to integrate:(secx)^4 dx let u = sec x dv =sec^3 x dx Start with this. Then, you will have to deal with the integral of
1. 0 answers
2. asked by Jake
3. 489 views
A car drives straight off the edge of a cliff that is 47m hight. The police at the accident note that the point of impact is
1. 0 answers
2. asked by leann
3. 489 views
what is a current issue between Native Americans and the federal government.Gambling. Some tribes have it, others dont. Drug
1. 0 answers
2. asked by Anonymous
3. 486 views
polynomial is x^3 - x^2 -11x + 15If 3 is the zero of the polynomial, when you divide this polynomial with x-3, the remainder has
1. 0 answers
2. asked by Jen
3. 484 views
How important is it that members of a society share certain views in common?It's important that they share some views, but they
1. 0 answers
2. asked by guest!
3. 478 views
After a product was reduced $20, it sold for $380. What precent was reduced?P-20=380 solve for P Percent reduced= (P-380)/P x
1. 0 answers
2. asked by Bryan
3. 470 views
how much water do oyu need in wheatPlease explain your question. Are you asking how much water is needed for wheat to grow? Or
1. 0 answers
2. asked by michelle
3. 469 views
Which one of the basic functions (linear, quadratic, rational, or exponential) is related to the arithmetic series?doesn't
1. 0 answers
2. asked by Sandra
3. 466 views
Give two advantages that a telescope lens or mirror of large diameter has over one of small diameter.Not positive on this, but
1. 0 answers
2. asked by Lisa
3. 455 views
why does each time zone extend 7 1/2 degrees oneach side of central meridian rather than extending from 0 degrees to 15 degree?I
1. 0 answers
2. asked by mike
3. 455 views
Can anyone help me with this question:I have to show how I would synthesize the molecules: hexanol, bromo-2-pentene, and
1. 0 answers
2. asked by Michelle
3. 454 views
What utility do you use to mark specific Active Directory objects as authoritativeNtdsutil.exe
1. 0 answers
2. asked by ajay
3. 449 views
Give two advantages that a telescope lens or mirror of large diameter has over one of small diameter
1. 0 answers
2. asked by Lisa
3. 448 views
square of a certain number decreased by 9 times the number is 36 . what is the numberGoodness. You have to start to try these,
1. 0 answers
2. asked by sandy d
3. 441 views
Answer the following for a primitive cubic unit cell.X
1. 0 answers
2. asked by dory
3. 434 views
To what degree are “ordinary people” capable of giving direction to government?To a high degree. Anybody can tell the
1. 0 answers
2. asked by question?
3. 422 views
Help me with an idea for an essay, preferably based on personal values.Should I go to Iraq and fight? Is being rich more
1. 0 answers
2. asked by izzi
3. 421 views
There is always less data included in an incremental backup than a full backup.
1. 0 answers
2. asked by ajay
3. 420 views
When the US Air arena is filled up to 80% capacity, it holds 13,600 people. How many would it hold when completely filled?ratio.
1. 0 answers
2. asked by Bryan
3. 419 views
In Task Manager, what tab allows you to view which of the current user’s processes are running on the computer
1. 0 answers
2. asked by ajay
3. 417 views
Im trying to get the selling price the question is marina has estimated the fixed cost per month are 240,000 and variable cosdt
1. 0 answers
2. asked by Tarver
3. 411 views
For all three of the cubic lattices (unit cells), all of the ?and all of the ? are the same size. A wild guess. edges. radii??
1. 0 answers
2. asked by dory
3. 409 views
explain the everyday phenomena in term of atomic structure and behavior when you lightly bump into a car, why does it dent and
1. 0 answers
2. asked by Barbara
3. 407 views
what is the gcf of the monomials 24,813 goes into each
1. 0 answers
2. asked by shateera
3. 380 views
HOW DO I FIND THA AREA OF A TRIANGLE?1/2 times the base times the height.
1. 0 answers
2. asked by hanna
3. 365 views

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