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Questions Asked on July 19, 2010

Estimate the value of the equilibrium constant at 550 K for each of the following reactions.1) 2CO(g) + O2(g) <==> 2CO2(g) 2)
1. 11 answers
2. asked by Miguel
3. 7,663 views
A package is dropped from a helicopter moving upward at 15 m/s. If it takes 16.0 s before the package strikes the ground, how
1. 2 answers
2. asked by Britney
3. 5,997 views
A 9.5-kg monkey is hanging by one arm from a branch and is swinging on a vertical circle. As an approximation, assume a radial
1. 2 answers
2. asked by Anonymous
3. 5,183 views
A 15-g bullet is fired horizontally into a 3.000-kg block of wood suspended by a long cord. The bullet sticks in the block.
1. 1 answer
2. asked by Lony
3. 4,463 views
a ball is thrown vertically upward from the ground with the velocity of 30m/s. a) how long will it take to rise to its highest
1. 6 answers
2. asked by Patrick
3. 4,145 views
Answer the follow questions by looking at how the and LUMO change on the Energy Profile plot. More than one answer is possible
1. 16 answers
2. asked by Anonymous
3. 4,117 views
A rope 26 ft long is attached to two points A and B, 20 ft apart at the same level. A load of 250 lb is carried at the middle of
1. 1 answer
2. asked by senior pogi
3. 3,941 views
Write balanced equations and solubility product expressions for the solubility equlibria of the following compounds:a. CuBr b.
1. 2 answers
2. asked by Jin
3. 3,856 views
Answer the follow using the Energy Profile plot. More than one answer is possible for some questions.What chemical species are
1. 4 answers
2. asked by Screwed
3. 3,606 views
a 7500 kilogram rocket blasts off vertically upward from the launch pad with a constant acceleration of 2.25 m/s squared and
1. 2 answers
2. asked by kat
3. 3,386 views
"Two springs are hooked together and one end is attached to a ceiling. Spring A has a spring constant of 25N/m, and spring B has
1. 2 answers
2. asked by Stuck
3. 3,216 views
What is the pH of 0.10 M HNO2 given Ka = 4.5x10-4.
1. 3 answers
2. asked by Anonymous
3. 3,119 views
A scuba diver 40ft below the ocean surface inhales 50.0 ml of compressed air mixture in a scuba tank at a pressure of 3.00 atm.
1. 3 answers
2. asked by amy
3. 3,077 views
Determine the overall orders of the reactions to which the following rate laws apply:a. rate = k[NO2]^2 b. rate = k c. rate =
1. 2 answers
2. asked by Sara
3. 3,025 views
An air bubble has a volume of 0.500 L at 18 C. If the pressure does not change, what is the volume, in liters, at each of the
1. 2 answers
2. asked by amy
3. 2,600 views
Vector A has length 4 units and directed to the north. Vector B has length 9 units and is directed to the south. Calculate the
1. 2 answers
2. asked by Glam
3. 2,554 views
Which of the four factors affecting reaction rate is most important in each example below? Choose from among concentration,
1. 2 answers
2. asked by Derrick
3. 2,326 views
Determine the molar mass of each of the following gases?A. 2.90 g of gas that occupies 0.500 L at 0 C and 1.00 atm (STP) B. 1.48
1. 3 answers
2. asked by amy
3. 1,700 views
SPARTAN:Enter the numerical energy values (X, Y, & Z) on the y-axis and calculate the Ea and G. (Note: This is a multipart
1. 7 answers
2. asked by arthur
3. 1,678 views
Explain, with balanced ionic equations, whya. CuI2 dissolves in ammonia solution b. AgBr dissolves in NaCN solution, c. HgCl2
1. 1 answer
2. asked by Jin
3. 1,554 views
Assume that a set of test scores is normally distributed with a mean of 100 and a standard devaiton of 20. Use the 68-95-99.7
1. 2 answers
2. asked by terry
3. 1,544 views
Many of the toy products sold in the United States are imported from Taiwan because the Taiwanese can produce these products
1. 2 answers
2. asked by kyle
3. 1,496 views
Enter the numerical energy values (X, Y, & Z) on the y-axis and calculate the Ea and G.(Note: This is a multipart problem. First
1. 2 answers
2. asked by Anth
3. 1,464 views
M&M plain candies have weights that are normally distrbuted with a mean weight of 0.8565 gram and a standard deviation of 0.0518
1. 1 answer
2. asked by cindy
3. 1,427 views
How are natural resources distributed throughout the world?(a) Most natural resources are found in developed nations. (b) Most
1. 3 answers
2. asked by Priya
3. 1,423 views
SPARTAN:Answer the follow using the Energy Profile plot. More than one answer is possible for some questions. What chemical
1. 21 answers
2. asked by arthur
3. 1,404 views
superman is said to be able to leap tall buildings in a single bound. how high a building could superman jump over if he were to
1. 1 answer
2. asked by Anonymous
3. 1,400 views
The half-life of radon-222 is 3.82 days. If a sample of gas contains 4.38ug of radon-222, how much will remain in the sample
1. 1 answer
2. asked by Leyah
3. 1,210 views
1. Why are cells from a blastula used to examine mitosis?2. How fast do you think cells divide when an embryo is developing
1. 0 answers
2. asked by Mely
3. 1,197 views
how do i represent 1/(1+x^4) in general taylor polynomial. I know the pattern is 1-x^4+x^8-x^16..... I don't know how to
1. 0 answers
2. asked by eng
3. 1,166 views
Solid NaI is slowly added to a soln that is 0.010M in Cu+ and 0.010M in Ag+.a. Which compound will begin to precipitate first?
1. 2 answers
2. asked by Jin
3. 1,157 views
How did human history in North America during the period described in the Prologue differ from the events of Asia, Eurasia, and
1. 3 answers
2. asked by Karen
3. 1,153 views
a .215kg particle is released from rest at point A in a smooth hemisperical bowl of radius .30m with a height of 2/3R. what is
1. 1 answer
2. asked by Anonymous
3. 1,121 views
i am to write five sentences about the role of education in successful financial planning, in which i am correctly to use a
1. 1 answer
2. asked by shawna
3. 1,071 views
An electron orbits a proton at a radius of 5.38 10-11 m. What is the magnitude of the magnetic field at the proton due to the
1. 1 answer
2. asked by Anonymous
3. 997 views
If an eclipsing binary system has a period of 32 days, an orbital velocity of 153km/s, and an orbit that is nearly edge-on, what
1. 2 answers
2. asked by Sheena
3. 992 views
A pump is required to lift 800 liters of water per minute from a well 15.0 m deep and eject it with a speed of 17.0 m/s.How much
1. 2 answers
2. asked by tom
3. 924 views
Use the labels (CV+, –OH, CVOH, , Ea (activation energy), & G) to complete the reaction potential energy profile below. More
1. 7 answers
2. asked by Screwed
3. 900 views
The amount of indicator used in an acid-base titration must be small. why??
1. 1 answer
2. asked by Jin
3. 858 views
Hi can someone assist mewith this DQ-Post a minimum 200 word response to the following:Pretend you are a teacher explaining to
1. 3 answers
2. asked by jay 2
3. 846 views
Systolic blood pressure for women between the ages of 18 and 24 is normally distributed with a mean of 114.8 (millimeters of
1. 1 answer
2. asked by cindy
3. 835 views
Technology and Communication Paper· Prepare a 1,050- to 1,750-word paper that explains how technology has affected the
1. 9 answers
2. asked by Jamie
3. 819 views
A racing dog is initially running at 15.0 m/s, but is slowing down.How fast is the dog moving when its kinetic energy has been
1. 2 answers
2. asked by Andrea
3. 805 views
a. A study of the relationship between exercise and heart attacks that is conducted among women who do not smoke. Explain
1. 1 answer
2. asked by trisha
3. 751 views
You have a collection of six 1.0 kilo ohm resistors. what is the smallest resistance you can make by combining them
1. 2 answers
2. asked by emoni
3. 739 views
Complete the hypothesis test: null hypothesis = 52, alternative hypothesis =<52, a=0.01 usin data set
1. 1 answer
2. asked by Shelly
3. 733 views
Out of the following compounds, which one is the weakest base? NH3, CH3NH2, NH2F, NH2Br
1. 0 answers
2. asked by Anonymous
3. 728 views
A 300kg motorboat is turned off as it approaches a dock and it coasts in toward the dock at .5 m/s. Isaac, whose mass is 62kg,
1. 0 answers
2. asked by Anonymous
3. 725 views
The length is 5ft less than twice the width and the perimeter is 80ft
1. 1 answer
2. asked by julian
3. 720 views
how to know exact t value using sample standard deviation and sample mean and sample sizei think df is sample size -1 . we
1. 5 answers
2. asked by Anonymous
3. 700 views
Simplify each trigonometric expressiona) Sin(theta)Cot(theta)-Sin(theta)Cos(theta) c)(sin x + cos x)(sin x - cos x)+ 2
1. 1 answer
2. asked by Katya
3. 648 views
a regular hexagon has a perimeter of 50m.What is the length of its side
1. 2 answers
2. asked by Anonymous
3. 646 views
Conduct research on the following three booksellers: Amazon, Barnes and Noble, and a local bookseller of your choice in terms of
1. 3 answers
2. asked by Anonymous
3. 628 views
the average weekly earnings of a production worker were $424. to know if wages, on average, have gone up since that time. To
1. 1 answer
2. asked by Anonymous
3. 622 views
the average weekly earnings of a production worker were $424. to know if wages, on average, have gone up since that time. To
1. 4 answers
2. asked by Anonymous
3. 601 views
Can you help me with finding sources for information on whether Chinese Americans faced discrimination through redlining,
1. 1 answer
2. asked by Anonymous
3. 599 views
How do sperm and eggs differ in size? (consider size and the quatity of each gamete). Explain possible reasons for these
1. 2 answers
2. asked by Mely
3. 593 views
Lucia works for a lawyer who depends on her for everything. Answering phones, planning business trips, proofreading documents,
1. 1 answer
2. asked by james
3. 567 views
what is the area of a rhombus if AB equals 9.9 and AC equals 13 and DB equals 15?
1. 2 answers
2. asked by jay
3. 559 views
How do you determine if a polynomial is the difference of two squares?
1. 1 answer
2. asked by Cindy
3. 554 views
Answer the follow using the Energy Profile plot. More than one answer is possible for some questions.What chemical species are
1. 0 answers
2. asked by Screwed
3. 554 views
This is my assignment and I don't understand it.Write a 200- to 300-word paper in APA format explaining a difference between the
1. 2 answers
2. asked by Isabella
3. 547 views
You need to buy 20 computers for your business. You have the option of leasing the equipment for four years at $5,000 per year
1. 0 answers
2. asked by Dale
3. 540 views
Your general manager called you into his office to discuss an ongoing problem. He explains that in the past, whenever he wanted
1. 0 answers
2. asked by stacy
3. 538 views
When KI is dissolved in water, the solution will be ___. a) Strongly Acidic b) Slightly Acidic c) Neutral d) Basic
1. 1 answer
2. asked by Anonymous
3. 528 views
What are the three most significant changes that have occurred in our understanding of the immigration process
1. 1 answer
2. asked by mike
3. 527 views
the average weekly earnings of a production worker were $424. to know if wages, on average, have gone up since that time. To
1. 1 answer
2. asked by Anonymous
3. 526 views
from 1500 lottery tickets that are sold,3 tickets are to be selected for first, second, and third prizes. how many possible
1. 1 answer
2. asked by sha
3. 519 views
What is he importance of literacy in our society?
1. 3 answers
2. asked by Kyrkyya
3. 512 views
a regular triangle and a regular hexagon have the same perimeter length.If the length of a side of hexagon is 20cm,how long is
1. 2 answers
2. asked by tintin
3. 510 views
a. Suppose that a market research company finds that at a price of p = $40, they would sell x = 37 tiles each month. If they
1. 2 answers
2. asked by Michelle
3. 492 views
When Cl- is added to the following reaction at equilibrium, does the reaction go in the forward direction, reverse direction, or
1. 3 answers
2. asked by Anonymous
3. 492 views
a pentagon has sides 2N+7,3N+2,6,7N,5N-6.If the perimeter is 180,find the length of each side.
1. 1 answer
2. asked by tintin
3. 484 views
Is this topic sentence clear enough? Or is it too broad? If so, could I get some guidance, Im lost. This is for a
1. 3 answers
2. asked by Anonymous
3. 482 views
Develop a protocol for channeling students into a gifted program. In 200 to 300 words, include the following:
1. 1 answer
2. asked by Anonymous
3. 480 views
When KI is dissolved in water, the solution will be ___. a) Strongly Acidic b) Slightly Acidic c) Neutral d) Basic
1. 1 answer
2. asked by Anonymous
3. 478 views
I need to devise a memory aid for any five terms relating to the genitourinary and five terms relating to the female
1. 0 answers
2. asked by Randi Grzesik
3. 477 views
when is it correct to assign a fourth -digit category cade
1. 1 answer
2. asked by nirva
3. 476 views
give an ordered pair (a,b)that satisfy the following equation 3a-b=7
1. 2 answers
2. asked by phoenix university
3. 463 views
You've started your first day at Venture Outpatient Surgery Center. Explain how you would code an operative report.
1. 0 answers
2. asked by Leonor
3. 461 views
How are stories used as a method of coping/a means of survival in Yann Martel's "Life of Pi" and Tim O'Brien's "The Things They
1. 1 answer
2. asked by Mr. man
3. 458 views
can anyone help me with the id of minerals: borax, calcite, corundum, graphite, gypsum, orthoclase feldspar, pyrite, quartz,
1. 0 answers
2. asked by Norma
3. 446 views
Answer the follow using the Energy Profile plot. More than one answer is possible for some questions.What chemical species are
1. 0 answers
2. asked by Anth
3. 445 views
wher can i find information to help with this:How did the businesses of those like Morgan, Carnegie, and Rockefeller come to be
1. 1 answer
2. asked by chandice
3. 444 views
How do the sizes of the oocytes differ as they move from the follicular stage towards the mature graafian follicle?
1. 0 answers
2. asked by Mely
3. 439 views
How can I become my own editor and review my writing with a critical eye?
1. 1 answer
2. asked by Melinda
3. 434 views
Tan^2 30*- cos^2 45*
1. 1 answer
2. asked by Ken
3. 425 views
We wre exceedingly pleased that Rex come home.. Is exceedingly an adjective?
1. 2 answers
2. asked by Patty
3. 417 views
What would a calendar be like on Venus (for a hypothetical Venusian resident)?
1. 0 answers
2. asked by Anonymous
3. 417 views
1/2a-5=1/3a-1 please show me how to set this problem up and solve it
1. 3 answers
2. asked by katrina
3. 414 views
I have to solve for x in this problem:(3x+5)/[(x-1)(x4+7)=0
1. 0 answers
2. asked by Julia
3. 398 views
Determine the pH of solutions with the following ion concentrations:1) {H+} = 1.0x10 to the negative 3 M
1. 0 answers
2. asked by Jesse
3. 396 views
Find logical errora2 = b * b
1. 1 answer
2. asked by JT
3. 390 views
How do you find the perimeter and area of a right triangle?
1. 1 answer
2. asked by Matt
3. 377 views
Given colchicine's properties, could this compound be used to treat cancer?
1. 0 answers
2. asked by Mely
3. 373 views
Which of the following expressions are identical?a. (sinx)^-1 b. arcsinx c. sin x^-1 d. 1/sinx
1. 0 answers
2. asked by Julia
3. 365 views
what is the probability of 62 with a mean of 60 and a standard deviation of 7?
1. 3 answers
2. asked by beverlt
3. 356 views
How can I project profits using tradition format ?
1. 0 answers
2. asked by adolphus
3. 356 views
What is the domain of this function?:y= ln(2x-12)
1. 0 answers
2. asked by Julia
3. 355 views
given the revenue eqn R(p) =-0.08p^2+300phow do i determine the demand equation?
1. 0 answers
2. asked by Anonymous
3. 348 views

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