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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. 6,945 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. 5,655 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. 4,278 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. 4,192 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. 3,665 views
A passenger in a helicopter traveling upwards at 19 m/s accidentally drops a package out the window. If it takes 14 seconds to
1. 1 answer
2. asked by Me
3. 3,340 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. 3,078 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. 2,555 views
express 3/8 in thirty seconds
1. 2 answers
2. asked by clyde
3. 2,384 views
what mass of silver nitrate (AgNO3) is required to prepare 400 grams of a 3.50% solution of AgNO3?Options: 1. 0.00875 g 2.
1. 2 answers
2. asked by alexandra
3. 2,192 views
1.)To reduce the force of impact you coulda)Extend the duration of the time of impact b)Decrease the duration of the time of
1. 1 answer
2. asked by Ariel
3. 2,080 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. 2,025 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. 1,758 views
Recognize each of the following reactions as synthesis, decomposition, single replacement, double replacement, neutralization,
1. 1 answer
2. asked by Derrick
3. 1,727 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. 1,703 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. 1,433 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. 1,364 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. 1,320 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. 1,268 views
how many atoms are contained in 12g of H2O2 ?
1. 1 answer
2. asked by Anonymous
3. 1,260 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. 1,227 views
The figure below shows an arrangement in which four disks are suspended by cords. The longer, top cord loops over a frictionless
1. 3 answers
2. asked by Sam
3. 1,189 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. 1,172 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. 1,167 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. 1,161 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. 1,147 views
A railroad flatcar is traveling at the speed of 13.0 m/s relative to an observer standing on the ground. Someone is riding a
1. 2 answers
2. asked by Emily
3. 1,145 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. 1,136 views
Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7
1. 1 answer
2. asked by Ab
3. 1,129 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. 1,120 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. 1,107 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. 1,104 views
List titles and artists of contemporary or older songs in relationship to gender and family. What message do the lyrics of the
1. 1 answer
2. asked by Audrey
3. 1,087 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. 1,060 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. 1,038 views
The manager of a large apartment complex knows from experience that 80 units will be occupied if the rent is 472 dollars per
1. 1 answer
2. asked by John
3. 1,033 views
a solution of sodium hydroxide is standardized against potassium hydrogen phthalate (KHP, formula weight 204.2 g/mol). From the
1. 1 answer
2. asked by debbie
3. 1,032 views
Combines the pairs of sentences below into compound sentenvces three different ways. Punctuate correctly. One pair of sentences
1. 4 answers
2. asked by Debra
3. 999 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. 992 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. 944 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. 897 views
3m^3 + 27m = 3m(m^2 + 9)= 3m(m + 3)(m – 3)
1. 1 answer
2. asked by JT
3. 884 views
Hi, I have a linear model with equation p =5.1t - 28, which concerns breeding pairs of birds where p is the number of breeding
1. 1 answer
2. asked by Tan
3. 863 views
How many grams of calcium chloride would you dissolve in water to make a total .111 M calcium chloride solution with 200 mL
1. 1 answer
2. asked by fiath
3. 853 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. 844 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. 828 views
Help with fragment,The panther lay motionless behind the rock. Waiting silently for its prey.
1. 1 answer
2. asked by Matthew
3. 812 views
A railroad flatcar is traveling at the speed of 13.0 m/s relative to an observer standing on the ground. Someone is riding a
1. 1 answer
2. asked by Emily
3. 780 views
A fence 6 feet tall runs parallel to a tall building at a distance of 7 feet from the building. What is the length of the
1. 1 answer
2. asked by Pete
3. 772 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. 761 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. 751 views
Imagine a landing craft approaching the surface of the moon of a distant planet. If the engine provides an upward force (thrust)
1. 1 answer
2. asked by Sam
3. 742 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. 726 views
Factor polynomial completelyax - 2a - 5x +10
1. 1 answer
2. asked by JT
3. 719 views
"use the intermediate value theorem to prove that the curves y=x^2 and y=cosx intersect"
1. 0 answers
2. asked by teri
3. 710 views
CheckPoint: Legal and Ethical Issues Confronting the Education of English Language Learners Consider that in recent years
1. 2 answers
2. asked by Anonymous
3. 705 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. 694 views
detailing how a human service organization focused on providing job skills to high school dropouts would address the following:�
1. 4 answers
2. asked by lettie
3. 680 views
DrBob222 I am beginning to understand about balancing equations well, thanks to your help, but there are still some other
1. 1 answer
2. asked by Derrick
3. 680 views
In isosceles trapezoid ABCD, AB=22, CD=34 and AC=10. Find BDA)28 B)5 C)10 D)35
1. 1 answer
2. asked by Tiffany
3. 670 views
Intensity = 84,250 M-1 * [Li+] + 1.75If the intensity of your unknown sample is 90, what is the concentration of Li+ in the
1. 2 answers
2. asked by Anonymous
3. 666 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. 665 views
What is the difference between parametric and nonparametric statistical tests?
1. 2 answers
2. asked by Anonymous
3. 664 views
How far to the nearest tenth of a meter can a runner running at 11 m/s run in the time it takes a rock to fall from rest 90
1. 3 answers
2. asked by Me
3. 664 views
If Frankie the kangaroo climbed out of the crate and pushed the crate with a mighty 12 newtons of force against the efforts of
1. 0 answers
2. asked by Matt
3. 651 views
A speeder traveling at 41 m/s passes a motorcycle policeman at rest at the side of the road. The policeman accelerates at 3.3
1. 1 answer
2. asked by Me
3. 644 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. 639 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. 637 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. 630 views
Factor polynomial completely8a^2 + 40ab+ 50b^2 =
1. 1 answer
2. asked by JT
3. 625 views
A speeder traveling at 41 m/s passes a motorcycle policeman at rest at the side of the road. The policeman accelerates at 3.3
1. 2 answers
2. asked by Me
3. 603 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. 599 views
2. Biologists want to set up a station to test alligators in the lake for West Nile Virus. Suppose that the costs for such a
1. 1 answer
2. asked by Devon
3. 598 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. 588 views
1. The cost, in millions of dollars, to remove x % of pollution in a lake modeled bya. What is the cost to remove 75% of the
1. 1 answer
2. asked by Devon
3. 582 views
Please explain. I want to understand the steps.1. A frog jumps from a rock to the shore of a pond. Its path is given by the
1. 3 answers
2. asked by Laly
3. 577 views
long divsion to divide the polynomials.2x^3-5x^2-6x-16/x-4
1. 2 answers
2. asked by Crystal
3. 574 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. 567 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. 562 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. 553 views
1. The worker (who,whom) left the empty soda can on the computer.2.Between you and (I,me), Greg will lose. 3.Do not give any
1. 1 answer
2. asked by Leslie
3. 550 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. 547 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. 542 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. 536 views
Factor polynomial completely8a^2 + 40ab+ 50b^2 =
1. 1 answer
2. asked by JT
3. 536 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. 533 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. 528 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. 525 views
the accepted boiling point of ethanol is 78.5C. a student takes the temp of a sample of ethanol which is boiling in a beaker on
1. 1 answer
2. asked by Anonymous
3. 524 views
The term sociological was coined in 1833 by who
1. 3 answers
2. asked by Esther
3. 517 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. 509 views
Do you think modernization was a positive or negative movement in the Ottoman Empire? Why?
1. 2 answers
2. asked by Rebekah
3. 507 views
how can the three sociological perspective e.g.social functionalism, social conflict, symbolic interaction be used on
1. 0 answers
2. asked by deangelo
3. 506 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. 499 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. 489 views
1.)When do action and reaction forces within a system not cancel each other?a.)When the action force is double the resistance of
1. 1 answer
2. asked by Ariel
3. 487 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. 484 views
What part of a yard is 24 inches?Give answer in lowest terms.
1. 2 answers
2. asked by clyde
3. 482 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. 475 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. 475 views

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