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2010
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Questions Asked on July 13, 2010

calculate the lattice enthalpy of potassium fluoride from the following data:enthalpy of formation of K(g): +89 kJ · mol−1
1. 4 answers
2. asked by alexandra
3. 6,915 views
a chemist needs 46 mol of ammonia for a reaction to complete. he has 46 grams available but needs ammonia as a liquid
1. 3 answers
2. asked by Marie
3. 510 views
a chemist needs 46 mol of ammonia for a reaction to complete. he has 46 grams available but needs ammonia as a liquid
1. 1 answer
2. asked by Marie
3. 431 views
How many different positive four-digit integers can be formed if the first digit must be 2, the last digit cannot be 0, and
1. 1 answer
2. asked by Kyle
3. 1,122 views
Children should not be served drinks in containers made of? A.Styrofoam. B.uninsulated paper. C.treated ceramic. D.stainless
1. 2 answers
2. asked by Mary
3. 526 views
How much heat is necessary to change 20 g of ice at 0 degrees C into water at 0 degrees C?
1. 1 answer
2. asked by Pam
3. 1,096 views
how many atoms are contained in 12g of H2O2 ?
1. 1 answer
2. asked by Anonymous
3. 1,248 views
The perimeter of a rectangle is 174 inches. The length exceeds the width by 11 inches. find the length and the width.
1. 3 answers
2. asked by Michelle
3. 1,152 views
A soccer game is played. A goal keepers kicks the ball 88m . If the ball had an elevation of 40 degree angle upon its departure
1. 0 answers
2. asked by jon
3. 619 views
solve using the substitution method....(solutions must be in ordered pairs form)9m+n=24 m-8n=27
1. 4 answers
2. asked by Michelle
3. 491 views
• What factors make it more likely that a bill will become law? What factors make it less likely?• Is it easy or difficult
1. 2 answers
2. asked by Debbie
3. 1,111 views
I need to know if these are correct I have Bolded the adverbs and underlined the adjectives.I have had both good and bad
1. 1 answer
2. asked by Deb
3. 1,156 views
how would you solve this equation??-4|7+d| = -44
1. 1 answer
2. asked by lola
3. 281 views
Two cars, one in front of the other, are traveling down the highway at 25 m/s. The car behind sounds its horn, which has a
1. 0 answers
2. asked by Katie
3. 810 views
The term sociological was coined in 1833 by who
1. 3 answers
2. asked by Esther
3. 509 views
If g(x)>0 for all real values of x, which of the following could be function g?a) g(x)= x+1 b) g(x)=x-1 c) g(x)= x^2+1 d) g(x) =
1. 0 answers
2. asked by jess
3. 475 views
Help with fragment,The panther lay motionless behind the rock. Waiting silently for its prey.
1. 1 answer
2. asked by Matthew
3. 801 views
"A roller coaster reaches the top of the steepest hill with a speed of 1.4m/s. It then descends the hill which is at an average
1. 2 answers
2. asked by Stuck
3. 1,252 views
Hi class,I don’t have a lot of time to explain but off the top of my head answer is as a reader critical thinking affects me
1. 2 answers
2. asked by Terry
3. 685 views
Complete and balance the following neutralization reactions. then, write the names of all the reactants and all the products in
1. 5 answers
2. asked by Derrick
3. 2,000 views
How much work does the electric field do in moving a -7.7 micro Coulomb charge from ground to a point whose potential is +55 V
1. 1 answer
2. asked by Jae
3. 3,068 views
an unstretched hanging spring is 50cm long. suspending a 100N weight from it makes its lenght 60cm. Adding another 100N weight
1. 1 answer
2. asked by Jen
3. 2,537 views
You have found three investment choices for a one year deposit: 10% APR compounded monthly, 10% APR compounded annually, and 9%
1. 1 answer
2. asked by Andrea
3. 976 views
Describe the plant life, animal life, and geology of the ecosystem in new york. What populations and communities are present?
1. 1 answer
2. asked by mala
3. 539 views
Explain the difference between solving a system of equations by the algebraic method and the graphical method. Someone also
1. 4 answers
2. asked by kiMBERLY
3. 4,167 views
You have credit card debt of $25,000 that has an APR (monthly compounding) of 15%. Each month you pay minimum monthly payment
1. 2 answers
2. asked by Tara
3. 5,641 views
Oppenheimer Bank is offering a 30-year mortgage with an EAR of 5 3/8%. If you plan to borrow $150,000, what will your monthly
1. 1 answer
2. asked by James
3. 3,651 views
which president added the consumer right to education to the consumer bill of rights?
1. 0 answers
2. asked by alina
3. 423 views
I have a question and the answer, but I need to know how to get to the answer. ThanksWhat is the frequency, in hertz, of a sound
1. 1 answer
2. asked by Sam
3. 533 views
A pilot of a light plane heads due north at air speed of 400km/h and wind is blowing from the west at a 60km/h.what is
1. 1 answer
2. asked by ANTHONY
3. 737 views
6x-4y=8 have to find the slope for that equation, and the y-intercept, so I'll start with x=0
1. 1 answer
2. asked by Stephanie
3. 383 views
Hey, I am searching for websites that offer free homework help, and I figured out that this one does. I feel proud of this
1. 1 answer
2. asked by Anonymous
3. 496 views
Find the degree of 7u^4v^2w^5
1. 2 answers
2. asked by Jetta
3. 314 views
1. Find the equation for a quadratic function whose vertex is (2,5) and whose graph contains the point (-8,15).2.What are the x-
1. 1 answer
2. asked by Leslie
3. 1,743 views
how can i find the degree of 2x^5y^3+6x^2y^7
1. 2 answers
2. asked by Jetta
3. 439 views
Fill in the sentences with adverbs. Do not repeat.1.______ my friend and I _____ went _____. 2.We had _______ wanted to go ____,
1. 1 answer
2. asked by LaLy
3. 823 views
research over the last decade has shown that the percentage of high school students engaging in sexual intercourse a)is on the
1. 1 answer
2. asked by tee
3. 373 views
approximately blank percent of american adolescents have attempt suicide at least once a)5 b)10 c)15 d)20
1. 1 answer
2. asked by tee
3. 397 views
how many mililiters of a 0.27 M HCl solution are needed to react completely with 2.7 g of zinc to form zinc (II) chloride?"equat
1. 1 answer
2. asked by Nicole
3. 1,122 views
individuals who are less than 21 commit approximately blank % of serious crime a)10 b)25 c)30 d)40
1. 1 answer
2. asked by tee
3. 465 views
Joe ,aq high school junior , is considering a career in medicine but he is unsure if he want to commit himself to several more
1. 2 answers
2. asked by mar
3. 516 views
w^3 + 5w^2 - w = 5
1. 1 answer
2. asked by JT
3. 293 views
Why do firm's issue stock dividends?
1. 1 answer
2. asked by Reginald
3. 333 views
how many mililiters of a 0.4 molar HCl solution are needed to react completely with 13 grams of zinc according to the following
1. 1 answer
2. asked by Nicole
3. 617 views
how many mililiters of a 0.4 molar HCl solution are needed to react completely with 13 grams of zinc according to the following
1. 1 answer
2. asked by Nicole
3. 517 views
Solve equation2x^2 + 5x –12 = 0
1. 1 answer
2. asked by JT
3. 389 views
Factor polynomial completelyax - 2a - 5x +10
1. 1 answer
2. asked by JT
3. 705 views
a^2 + 2a -24
1. 1 answer
2. asked by JT
3. 237 views
i NEED TO KNOW IF i HAVE THE ADVERBS & ADJECTIVES CORRECTI have had both good and bad experiences when dealing with credit
1. 1 answer
2. asked by Deb
3. 581 views
In the reaction Fe2O3 + 3CO �¨ 2Fe + 3CO2How much CO is used to produce 112 grams of iron?
1. 0 answers
2. asked by Dillon
3. 749 views
a 20.0L sample of hydrogen gas has a mass of 1.80g. What will its density be in g/ml?
1. 1 answer
2. asked by Jen
3. 435 views
An entertainer juggles balls while doing other activities. In one act, she throws a ball vertically upward, and while it is in
1. 3 answers
2. asked by Francis
3. 1,420 views
Given the balanced equation: C2H4 + 3O2 �¨ 2CO2 + 2H2OHow many liters of CO2 are produced when 15 liters of O2 are consumed?
1. 3 answers
2. asked by Dillon
3. 4,262 views
What is the difference between parametric and nonparametric statistical tests?
1. 2 answers
2. asked by Anonymous
3. 655 views
Can you please show all your work so that I can understand how the problem is solved?In the Challenger Deep of the Marianas
1. 1 answer
2. asked by Amanda
3. 1,021 views
1. If our sun shrank in size to become a black hole, using the gravitational force equation, explain why the Earth's orbit would
1. 1 answer
2. asked by confused
3. 1,683 views
The width of a rectangle is 6 feet, and the diagonal is 10 feet. What is the area of the rectangle?
1. 2 answers
2. asked by BOB
3. 1,051 views
Describe the driving business forces in both the foreign and domestic environment. In what ways do they operate differently?
1. 0 answers
2. asked by cindy
3. 389 views
maggots form on raw meat , kept open for a few days. give 2 hypothesis for it
1. 3 answers
2. asked by nadha
3. 355 views
Which of the following are measurements of the sides of a right triangle?________________________________________ A. 3, 4, 5 B.
1. 1 answer
2. asked by BOB
3. 397 views
8a^2 + 40ab+ 50b^2 =
1. 0 answers
2. asked by JT
3. 363 views
an observer and a tree are standing against a slope. the observer is 80m from the tree.the angle between the slope, from the
1. 0 answers
2. asked by stanley
3. 923 views
Is helpglobe a free website? I can't really tell if it is or not.
1. 1 answer
2. asked by Anonymous
3. 317 views
A __________ __________ touches every vertex exactly once, but does not return to its origin.___________________________________
1. 0 answers
2. asked by BOB
3. 408 views
express 3/4 in sixty-forths
1. 1 answer
2. asked by clyde
3. 356 views
AD=5X-2BD=2X+7 FIND AB
1. 0 answers
2. asked by Jen
3. 294 views
1. What did Newton conclude about the force that pulls apples to the ground and the force that holds the moon in orbit?2. What
1. 1 answer
2. asked by confused
3. 879 views
3m^3 + 27m = 3m(m^2 + 9)= 3m(m + 3)(m – 3)
1. 1 answer
2. asked by JT
3. 876 views
long divsion to divide the polynomials.2x^3-5x^2-6x-16/x-4
1. 2 answers
2. asked by Crystal
3. 562 views
3m^3 + 27m = 3m(m^2 + 9)= 3m(m + 3)(m – 3) its is not done? is this a cubeproblem?
1. 1 answer
2. asked by JT
3. 297 views
express 3/8 in thirty seconds
1. 2 answers
2. asked by clyde
3. 2,370 views
What part of a yard is 24 inches?Give answer in lowest terms.
1. 2 answers
2. asked by clyde
3. 472 views
List titles and artists of contemporary or older songs in relationship to gender and family. What message do the lyrics of the
1. 0 answers
2. asked by Audrey
3. 438 views
Given the surface: z^2=x^2+xy^2z. Find dz/dx
1. 0 answers
2. asked by Jessica
3. 277 views
find and classify all local minima, local maxima, and saddle points of the function f(x,y)= e^-y(x^2+y^2)
1. 0 answers
2. asked by karen
3. 474 views
Factor the expression: x to the 2nd power+3x+2?
1. 1 answer
2. asked by andrew
3. 415 views
what part of an hour is 45 minutes?Give answer in lowest term.
1. 1 answer
2. asked by clyde
3. 448 views
1. (a) How far below an initial straight-line path will a projectile fall in eight seconds?(b) Does your answer depend on the
1. 0 answers
2. asked by confused
3. 1,349 views
Factor polynomial completely8a^2 + 40ab+ 50b^2 =
1. 1 answer
2. asked by JT
3. 616 views
Distinguish between a project-wide evaluation plan and an objective-oriented evaluation plan. What are the pros and cons of each
1. 1 answer
2. asked by Adam
3. 646 views
which statement is biconditionala)if x=5, then 2x+3=13 b)if two angles are a linear pair, then they = 180 degrees c) if the car
1. 1 answer
2. asked by Tiffany
3. 420 views
Sally can tie her shoes but only with her mother's help. This fact suggests that tying shoes is
1. 4 answers
2. asked by Joanne
3. 557 views
Q:Does the reproduction in spermopsida depend on water ???
1. 3 answers
2. asked by Sarah
3. 389 views
using the law of detachment, what can be concluded regarding the following statements: If a figure is a rhombus, then it is an
1. 2 answers
2. asked by Tiffany
3. 1,206 views
Do you think modernization was a positive or negative movement in the Ottoman Empire? Why?
1. 2 answers
2. asked by Rebekah
3. 496 views
find the degree of 2x^5y^3+6x^2y^7is the answer 14
1. 1 answer
2. asked by Jetta
3. 303 views
Find the degree of 7u^4v^2w^5is the answer 11
1. 2 answers
2. asked by Jetta
3. 333 views
Taylor Inc. manufactures widgets. There is a particular assembly line for Widget X. This assembly line includes the assembly of
1. 0 answers
2. asked by Tricia
3. 528 views
Which of the following gadgets is best for making a soft-shellshape out of butter? A. A curler C. A masher B. A peeler D. A pick
1. 1 answer
2. asked by D
3. 542 views
one thousand three hundred twenty feet are what part of a mile.Since there are 5,280 feet in a mile the answer will be 1/4 of a
1. 1 answer
2. asked by mona
3. 574 views
Consider the function f(x)=6sqrt(x)+1 on the interval [3,5] . Find the average or mean slope of the function on this interval. I
1. 3 answers
2. asked by John
3. 711 views
three-fourhs of a gallon is how many eighths of a gallon?
1. 1 answer
2. asked by mona
3. 313 views
MVP SHOULD BE RULED OUT, WHICH MEANS EMIMINATE THE POSSIBILITY OF
1. 1 answer
2. asked by barbara
3. 331 views
Eight-twentieths of a ton is how many hundredths of a ton?
1. 1 answer
2. asked by mona
3. 417 views
What percent of high school graduates go onto college(can be either 2,4or 8 year degree)and.. What percent of those that go onto
1. 0 answers
2. asked by Hannah
3. 1,087 views
4. The following is a cost function for clinic visits in a small inner city clinic.Quantity of Visits Total Costs per Week
1. 0 answers
2. asked by Dolores Metoyer
3. 463 views
After how many cells does the zygote start to differentiate?What is it called after the 8 cell stage? How many cells would be in
1. 0 answers
2. asked by amanda
3. 627 views
Why don't parallel lines exist in elliptical geometry?
1. 1 answer
2. asked by BOB
3. 409 views
i need some serious help with limits in pre-calc.here are a few questions that i really do not understand. 1. Evaluate: lim
1. 1 answer
2. asked by Dani
3. 1,136 views
You are given a 6-month assignment by your employer to work at a remote location in Australia. In order to pack as lightly as
1. 2 answers
2. asked by Anonymous
3. 1,309 views

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