Questions Asked on
February 23, 2008

Chemistry (Regents level)
1 In the reaction Fe2O3 + 3 CO = 2 Fe + 3 CO2, what is the total number of moles of CO used to produce 112 grams of iron? a) 1.0 b)2.0 c)3.0 d)4.0 2 Given the reaction: 4Al + 3O2 = 2Al2O3 How many moles of Al2O3 will be formed when 27 grams of Al reacts
asked by Jessica 
Chemistry
A 32.0 mL sample of hydrogen is collected over water at 20.0 degrees celcius and 750.0 torr. What is the volume of the dry gas at STP?
asked by Tyran 
chemistry
what is the mass in grams? a) 3.011 x 10^23 atoms F b)1.50 x 10^23 atoms Mg c)4.50 x 10^12 atoms Cl d)8.42 x 10^18 atoms Br e) 25 atoms w f) 1 atom Au can you please explain a and b to me then i'll come back later and see if i did the rest right? Thanks in
asked by john 
Intro to Probability
two construction contracts are to be randomly assigned to one or more of 3 firms I,II,III. A firm may receive more than one contract. if each contract has a potential profit of 90,000 dollars. find the expected potential profit for firm I. then find the
asked by Amelie 
Calculus
A leaky cylindrical oilcan has a diameter of 4 inches and a height of 6 inches. The can is full of oil and is leaking at the rate of 2 cubic inches/hr. The oil leaks into an empty conical cup with a diameter of 8 inches and a height of 8 inches. a. At what
asked by Martin 
Calc problem
Consider the function y=(kx)/(xk) a. Show that y is symmetric with respect to the line y=x. b. Write the equations of the horizontal and vertical asymptotes of y. c. Find the point(s) of intersection of y with the line xy=2k, and find the slope of the
asked by Holly 
math
For the city park commission, you are designing a marble planter in which to plant flowers. You want the length of the planter to be six times the height and the width of to be three times the height. The sides should be one foot thick. Since the planter
asked by angie 
Discrete Math: Applications of Dot Product
A 35kg trunk is dragged 10m up a ramp inclined at an angle of 12 degrees to the horizontal by a force of 90 N applied at an angle of 20 degrees to the ramp. At the top of the ramp, the trunk is dragged horizontally another 15m by the same force. Find the
asked by Anonymous 
Chemistry
2.01 g of sodium sulfate How would I figure out the number of moles of sulfure atoms in that sample?
asked by TAG 
Chemistry
Cyclpropane is converted to its isomer propylene, when heated. The rate law is first order in cyclopropane and the rate constant is 6.0X10^4/s at 500 degrees C. If the intial concentration of cyclopropane is 0.0226 mol/L, what is the concentration after
asked by Sam 
Write in (x , y) Form
The letters r and theta represent polar coordinates. Write each equation in rectangular coordinates (x, y) form. (1) r = 4 (2) r = 3/(3  cos(t)), where t = theta
asked by sharkman 
Chemistry
Since gases can be highly compressed, what must be true of the spaces between the molecules of the gas?
asked by Janice 
algebra
A department store purchases gift boxes that each have a volume of 256 cubic inches. The width of each box is 4 less than the length. The height is twice thw width. What are the dimentions of a gift box?
asked by sheila 
physics
500g of water at 40 deg C and 200g of a mixture of ice and water are combined. The final temperature is 10 deg C. How much of the original 200g mixture was ice?
asked by shan 
working with data
Mary rolls 2 number cubes with sides numbered from 1 to 6. if she rolls a 3 on one of the cubes , what is the probability that the sum of the numbers facing up on both cubes is greater than or equal to 5? express your answer as a decimal rounded to the
asked by jullie 
physics
a +35x10^6 C point charge is placed 32 cm from an identical +32x10^6 C charge. how much work would be required to move a +50.0x10^6 C test charge from a point midway between them to a point 12 cm closer to either of the charges? please show work and
asked by leess 
home economics
The economist for the Grand Corporation has estimated the company’s cost function, using the times series data to be TC=50+16Q2Q2+0.2Q3 a. Plot this curve for quanties 1 to 10 b. Calculate the average total cost, average variable cost and marginal cost
asked by Anonymous 
Chemistry
is this a catalyst NH2NO2 + OH H2O + NHNO2 NHNO2> N2O(g) + OH
asked by Sam 
math
Two angles equal 45 degrees.When added what kind of angle do you get?
asked by Shahin Malek 
Chemistry
Cyclpropane is converted to its isomer propylene, when heated. The rate law is first order in cyclopropane and the rate constant is 6.0X10^4/s at 500 degrees C. If the intial concentration of cyclopropane is 0.0226 mol/L, what is the concentration after
asked by Sam 
Health care
Please check my answer tahnks :) You are Doctor who wans to join together wth other HMO doctors but not give up your individual practice what would be your best choice for doing that I think it might be primary care physicain practice
asked by Michalea 
Chemistry
A reaction of the form aA> Products is second order with a rate constant of 0.169 L/(mol*s). If the intial concentration of A is 0.159 mol/L, how many seconds would it taje for the concentration of A to decrease to 6.07X10^3 mol/L
asked by Sam 
Chemistry
Cyclpropane is converted to its isomer propylene, when heated. The rate law is first order in cyclopropane and the rate constant is 6.0X10^4/s at 500 degrees C. If the intial concentration of cyclopropane is 0.0226 mol/L, what is the concentration after
asked by Sam 
Math: Applications of Dot Product
15) In Question 14, if the ramp makes an angle of 20 degrees with the level ground. Find the magnitude of the force tending to lift the crate vertically. ++++Textbook Answer for Question 15: 108.3 N  14) A crate is being dragged up a ramp by a 125 N
asked by Anonymous 
working with data
the table below shows the population of New London County, Ct from 1950 to 2000. year population 1950 145,000 1960 186,000 1970 230,000 1980 238,000 1990 255,000 2000 259,000 how do i make a scatter plot of the data? predict the population in 2010.
asked by maria 
econ
The economist for the Grand Corporation has estimated the company’s cost function, using the times series data to be TC=50+16Q2Q2+0.2Q3 a. Plot this curve for quanties 1 to 10 b. Calculate the average total cost, average variable cost and marginal cost
asked by Anonymous 
chemistry
2Al+3Cl2=2AlCl3 calculate the amount(number) of excess reagen units remaining when 4.03x10^23 Al atoms and 6.42x10^23 Cl2 molecules react? please help!!!!! thanks
asked by david 
Numerical & Proportional Reasoning
the bloodhound has 4.0*10^9 scent receptors in its nose. a typical human has 1.2*10^7 scent receptors. how many time more scent receptors does a bloodhounds have than a human? round answer to the nearest whole number
asked by stephanie 
Art History
How do the Parthenon and Ise Shrine relate to their worshipers in different ways using ritual processions and ceremonies? How does accessibility to the inner portions of both complexes reflect their different political systems?
asked by Walt 
physics
What is the required resistance of an immersion heater that will increase the temperature of 1.5kg of water from 10*C to 50*C in 10 min while opperating at 120V? The answer is 24.2 ohms. I don't know what equation to use to solve this question. Please help
asked by Anonymous 
chemistry
what is the mass in grams? a) 3.011 x 10^23 atoms F b)1.50 x 10^23 atoms Mg c)4.50 x 10^12 atoms Cl d)8.42 x 10^18 atoms Br e) 25 atoms w f) 1 atom Au can you please explain a and b to me then i'll come back later and see if i did the rest right? Thanks in
asked by john 
Polar to Rectangular Form
The letters r and theta represent polar coordinates. Write each equation in rectangular coordinates (x, y) form. Let t = theta (1) r = sin(t) + 1 (2) r = sin(t)  cos(t)
asked by sharkman 
math
Please help Mr. Chavez owned 3/4 of a family business. He sold 1/2 of the business to his sister. what portion of the business does he still own? a. 5/4 b. 1/4 c. 1/5 d. 4/5 Answer: b Gasoline is about $2 per gallon. You use about 1 1/2 each day driving to
asked by Kim 
Intro to probability
Two balanced coins are tossed. What are the expected value and the variance of the number of heads observed? ================================== I'm confused on how to start. I don't know how many times im suppose to toss coin, and how to set up my table
asked by amelie 
Math
1)Find the standard deviation of the data set to the nearest tenth. (21,13,18,16,13,35,12,8,15) A)16.8 B)7.8 C)7.3 D)5.7 I chose C mean = 21+13+18+16+13+35+12+8+15/9 16.8 variance = (2116.8)^2 = 17.64...did that with the rest and added them to get sqrt
asked by Jon 
Business Economics
How do you generate the average variable function (AVC) given the estimated marginal cost function (SMC)?
asked by Elise 
Math
Could someone double check me Write the answer in lowest terms 5/9 + 8/9 = 13/18 What is the perimeter of a rectangle if the length is 7/11 ft and the width is 2/11ft? Answer: 9/11 ft Write the answer in lowest term 17/36 – 13/36 Answer: 1/9 8/15 + 3/20
asked by Sherri 
vocab
Hello. I have got homework and I need help. Could you help me, please? Here are questions: =========== Complete the sentence with words to describe the taste of food: "There aren't many spices in this. It's very ........" Complete the sentence with words
asked by Milan K. 
Health care
Please check my answer thanks :) Pick pick the best answer to the following question. You belong to an HMO. By paying the HMO premium and being treated through that HMO, you are helping to.. 1. increase plan enrollment 2. decrease managed care costs 3.
asked by Michalea 
Shakespeare
I need help with the meter in Shakespeare's Sonnet 87. I know usually his are iambic pentameter, but with eleven syllables in each line I can't make that work. HELP.
asked by MJ 
Math
The equation P=240I8I^2 represents the power, P, (in watts) of a 240 volt circuit with a resistance of 8 ohms when a current of I amperes is passing through the circuit. Find the maximum power (in watts)that can be delivered in this circuit. I have
asked by Shirley 
Science
Is Oobleck a solid or a liquid? If you don't know what Oobleck is google it.
asked by Sam 
business
what is franchising? what are the advantages of franchising (in general)? who supervises franchises? is there any legal requirements for buying franchise?
asked by shanaz 
Biology
Does any one know where I can find a skeletal muscle cell diagram that shows its organelles? I have been having a hard time finding one. Maybe I need to improve my researching skills :) Thank you in advance!!!!
asked by Genevieve 
Health care
Please check my answer thanks :) You own a company in a state where state funds are not mandated for employee health insurance. What's one option for providing your employees with health care coverage for work related injuries. 1 Medicaid plans 2.
asked by Michalea 
Health care
please check my answer thanks :) The ability to accurately predict yearly expenss was one reason that large companies decided to 1. offer HMO plans 2. enroll in managed care plans 3. self insure their workers 4. offer medical spending plans I picked 4
asked by Michalea 
physics
600g of water is mixed with 20g of steam at 100 deg Celcius. What is the final temperature if the original temperature of the water is 25 deg Celcius
asked by shan 
algebra
p=2l+2w solve for l
asked by zach 
numerical & proportional reasoning
students in a biology class measured and recorded the lengths of different microscopic organisms. the results are recorded below. organism lenght(millimeters) a 0.00065 b 4.72* 10(exponent 4) c 8/10,000 d ?? a a fourth organism was measured and found to
asked by megan 
math
Two angles equal 45 degrees.When added what kind of angle do you get?
asked by Sharukh Khan 
math
according to the smithsonian institute, many of the original stones were removed and or eroded. The length of one side of the square base originally measured 207 ft. less than twice the height. The original volume of the great pyramid was 91,394,008
asked by angie 
english
What would the novel A Separate peace be like if Finny narrated the story?
asked by Miley 
Health care
Please check my answer thanks :) Mrs Jones was addmitted to the hospital for the first time this year on 9/15. On 9/25 she was transferred to a SNF where she stayed until 10/30. She was dicharged from the SNF with home health care and a walker along with
asked by Michalea 
year 7 french
for my french homework i need to translate countries from french into english . i have found some but not all i can`t find a website that helps me . thanks to all who helps
asked by lisa 
chemistry
what is the mass in grams? a) 3.011 x 10^23 atoms F b)1.50 x 10^23 atoms Mg c)4.50 x 10^12 atoms Cl d)8.42 x 10^18 atoms Br e) 25 atoms w f) 1 atom Au can you please explain a and b to me then i'll come back later and see if i did the rest right? Thanks in
asked by john 
Health insurance
Please check my answer thanks :) Ifan enrollee uses more services than originally assumed per the PPPM calculation, the the plan would 1. show a pfofit for that period 2. show a loss of that period 3. need a contract renegotiation 4. require that the
asked by Ashyleah 
Science
If you walk 20m. and took a book from a library table, turned around, and walked back to your seat. What is the distance and displacement traveled by you? What is the distance and displacement traveled by the book? Please answer in 100 words!
asked by Jennifer 
chemistry
Which of these are acidic, basic or a salt...Why? Al(NO3)3 K2CO3 NaBr NaHSO4 NH4Cl Do you know of any website I can use to help me use the atomic structure to find out whether it is an acid or base? Thanks
asked by Jess 
algebraic reasoning
the relationship b/w the distance d, in feet, required to stop a vehicle and s, the speed in miles per hour that the vehicle was traveling, is given by the equation d=0.0155s(squared)/f f represents the coefficient of friction b/w the tires and the road
asked by megan 
numerical & proportional reasoning
each summer, a high school sponsors a picnic for new students, their parents and teachers. last year, 65 pounds of hamburger patties were cooked to serve b/w 250 and 300 people. this year the school expects between 325 & 375 people. estimate the number of
asked by sam 
math
I don't understand how I am supposed to solve if i have something like (7) to the power of 2... or 3/4 to the power of 1
asked by Cynthia 
math
The equation P=240I8I^2 represents the power, P, (in watts) of a 240 volt circuit with a resistance of 8 ohms when a current of I amperes is passing through the circuit. Find the maximum power (in watts)that can be delivered in this circuit. I had posted
asked by Shirley 
Chemistry
Tell what the function of lipids do in a cell. Is the correct answer: lipids function in a cell is to provide energy, act as structural components in a cell , and can help provide hormones
asked by Bethany 
Social Studies
What's Indiana's major lake?
asked by Peter 
Science
Please give me general information(such as their uses,etc) on 1.Flowers 2.Photosynthesis 3.Food chain 4.Animals 5.Leaves
asked by Katie 
english
i need help in writing an ironic paragraph
asked by mitch 
Health care
Please check my answer thanks :) By creating a committe on social welfare, the Americain Association of Labor Legislation helped to 1. decrease public hospital costs 2. implement fee schedules 3. implement health care coverage for the working class and
asked by Michalea 
managerial economics
The MidNight Hour, LOCl nightclub, earned $100,000 in accounting profit last year. this year the owner, who had invested $1 million in the club, decided to close the club. What can you say about economic profit (and the rate of return) in the nightclub
asked by jean 
algebra 2 problem...still having trouble!!!
someone tried to help me but i still cant get the right answer....here it goes again!! For 1980 through 1995, the number of degrees D (in thousands) earned by people in the united states and the percent of degrees P earned by women can be modeled by
asked by logan 
Health care
please check my answer thanks :) Which health insurance program is designed to complement the retirement surivior and disability insurance enacted under Titlr II of the SSA I said Medicare
asked by Michalea 
Health care
Please check my answer thanks :) You stared workig for a private insurance compamy before the inception of managed care. You have been talking with yoiur co worker about how different reimbursement was in the past. you commented that before managed care.
asked by Michalea 
Health care
Please check my answer thanks :) Your neice may be eligible for health care coverage under the State Children's Health Insursnce Program. Where should your neice first start reveiwing eligibilty requirements ? 1. Social Services 2. The centers of Medicare
asked by Michalea 
Biology
Tell what the function of lipids do in a cell. Is the correct answer: lipids function in a cell is to provide energy, act as structural components in a cell , and can help provide hormones.
asked by Bethany 
year 7 french
i need to translate countries written in french into english . does anyone know if there are any good sites that will help me. thanks
asked by david 
math
The equation P=240I8I^2 represents the power, P, (in watts) of a 240 volt circuit with a resistance of 8 ohms when a current of I amperes is passing through the circuit. (a)Find the maximum power (in watts)that can be delivered in this circuit. (Find the
asked by Shirley 
Algebra II
The question simply statessolve. x^4+200=102x^2 I rearranged the equation so that I have x^102x^2+200=0 Since I cannot factor this my solution is x= 51 =/2 square root of 2801 divided by 2. Is this correct. Also a second problem that I do not know how
asked by Lucy 
Polar Equations
Identify each polar equation by changing the equation to rectangular coordinates. Let t = theta (1) t = pi/4 (2) r(sin(t)) = 2
asked by sharkman 
math
6+6+7+2=
asked by yamile 
English
dangling modifiers Incorrect: Architectually striking, everyone is quite impressed by the new building's size and elegance. Changed to: Everyone is quite impressed by the new building's architectually striking size and elegance.
asked by Shannon 
Accounting
What is the primary difference between a performance budget and a program budget?
asked by Jess 
land use management
Write a definition of land use management in your own words
asked by Thano 
Science
Please give me general information(such as their uses,etc) on 1.Flowers 2.Photosynthesis 3.Food chain 4.Animals 5.Leaves
asked by Katie 
Chemistry
How can one count carbon atoms, eg. in the international mass standard stored in PAris. By mass spectroscopy?
asked by Supaman 
French
How many ways and what are that in to say "that" in french?
asked by Kurst 
Social Studies
Which lake in Indiana is the major lake and how large is it?
asked by Andy 
physics
you chop 50 g of ice at 0 degrees celsius into 200g of water at 40 degress celcius. What is the final temperature?
asked by shan 
Health care
Please check my answer thanks :) Medicare and Medicaid financial issues put constraints on .... 1., physician services 2. critical care centers 3. public hospitals 4. outpatient services now here is the problem I think it is all of them but I can only pick
asked by Michalea 
Biology
I had to observe slides of onion root tip to study plant mitosis. And the question I have to answer asks,if your observations had not been restricted to the area of the root tip that is actively dividing, how would your results have been different? I
asked by Jin 
algebra essentials
Find an equation for the line that contains each pair of points. If the line is not vertical. Write the equation in slopeintercept form. X(4,5,0) and Y(0,4,5)
asked by Roderick 
science
what is the differences and similarities between gases,liquids and gases
asked by yucel 
Health care
Please check my answer thanks :) Mary needs Medicaid coverage. Where should she start looking for inforamtion to determine her eligibility ? 1. The local hospital social servies dept 2. Where she works 3. The federal government Web site 4. The state in
asked by Michalea 
Meicare
Please check my answer thanks :) Hospitals that are excluded from the Medicare PPS (such as children's hospitals) are paid based on 1 reasonable cots 2. fee schedules 3. global payments 4. bundled payments I picked # 1
asked by Ashyleah 
physics
Subjects Art Business Computers English Foreign Languages Health Home Economics Mathematics Music Physical Education Science Social Studies Features Contribute Download Experts Forum Job Openings Homework Tips Libraries.Jiskha Link to Us Reference School
asked by leesa 
reimbursement methodologies
Please check my answer thanks :) Which of the following determines payment before service are received ? 1. Prospective payment system 2. Retrospective payment system 3. Fee for service paymnt system 4. Capitation System I picked # 1
asked by Michalea 
science
what are two historical figures that contributed to the plate tectonic.
asked by sandtara 
Internetworking Design
OSPF lab. Using a simulator I need to create a four router topology. Using any interfaces of my choice. I am given /24 networks – choose interface addresses from the given network ID. Configure all routers in OSPF area 0 and make sure you can ping from
asked by Amy 
Chemistry
Cyclobutane consisting of molecules in which four carbon atoms form a ring decomposes when heated to give ethylene. The reaction is first order. In an experiment, the initial concentration of cuclobutane was 0.00150M. After heating at 450 degrees C for
asked by Sam 
algebra 2
For 1980 through 1995, the number of degrees D(in thousands) earned by people in the united states and the percent of degrees P earned by women can be modeled by D=0.096t^4+3t^327t^2+91t+1700 P=0.043t+49 where t is the number of years since 1980. A. Find
asked by logan 
Math
In my graph I have one line that decreases. What would be the shape name of a curve that would do so?
asked by Matty 
french
does any one know the french meaning of la nouvelle .
asked by david 
Math
What is a regression curve?
asked by Abbey 
livivg Env.
What is thelink between type 2 Diabetes and obesity?
asked by Jessie 
grade 11 english
what are the dominant poetic forms for the romantic period
asked by mike 
ENGLISH
Hi i would like to know that if i post my any question so who will give me answers..
asked by HEMANT 
english
i need to know what the dominant poetic forms were during the romantic period
asked by mike 
english
is it underfunded or under funded?
asked by Mischa 
Math/Chemistry
In my graph I have one line that decreases. What would be the shape name of a curve that would do so?
asked by Tyra 
algebra 2
i really need help on these..i don't understand ....i need to find the real number solutions of the equations... 2v^6=16 3s^4+15s^272=0 3c^7=81c^4 3q^4+3q^3=6q^2+6q any help would be appreciate...thank you!!
asked by logan 
ALGEBRA 1
What is the equation of a line that passes through point (1, 2) and has a slope of 1/3?
asked by veretina 
geometry & measurement
jose wants to buy a new tv that will fit the opening of his entertainment center. the height of the opening in his entertainment center is 27 inches. usually, the opening of an entertainment center has a widthtoheight ratio of 4:3. what is the diagonal
asked by beth 
Science
How the change of amplitude effects the time of one cycle of a pendulum?
asked by anum 
Health care
I was looking for a website that might be able to help me with Methodologies for medical reimbursment if anyoneone could please help me thank you very much
asked by Sanmjha 
accounting
how do i find the net income
asked by michelle 
business
How do visual aids impact the overall design and layout
asked by jean 
history
I have a 5 minute presentation on Gregor mendel. i already have the speech done and a poweporint. I am wondering what I could do that would be unique and out of the ordianary like something that I could bring that would make my presenation better than
asked by John 
computers
HOW TO CREATE A TABLE IN HTML?
asked by JOHN 
biology 110
using a spectrophotometer what is the relationship between absorbance and the concentration of light absoring substance in a solution.
asked by kim 
MBA Financial Accounting
How do you figure the total expense of two loans to show for year ending Dec. 31, 2006? The annual payment date is Sept. 30 with first payment due 2007.
asked by Beth 
Statistic
DOES ANYONE KNOWS HOW TO DO SIDE BY SIDE HISTOGRAM IN SPSS? THANKS FOR YOUR HELP
asked by Danielle 
Health care typo
I meant to say Capitation as my asnswer for Which type of medical service reimbursement is least used today
asked by Michalea 
Health care
Please check my answer thanks :) You need to speak to someone about additional coverage to Medicare Parts A and B Blue Cross and Blue Shield would be the best organization to contact. True or False I picked True
asked by Michalea 
alebra
write the equation in slopeentercept form. W(1, 2.4) and S(5, 2.4) m=2.4(5) ______ 2.4(1) for the answer I get 2.6 _____ 3.4 is this right if not please show me where I got off track.
asked by Roderick please help 
composition
Usually when you are ask to write about your family, do you usually have to write about yourself too?
asked by michelle 
english
In the short story, "Contents of the Dead Man's Pocket" what is the significance of the title?
asked by sammy 
reimbursement methodologies
I am looking for a website that may help me with reimbursement methodoloiges thanks for your help
asked by Rebbeckha 
Science
When you are describing the rate that a race car goes around a track, should you use the term speed or velocity to describe the motion? Can the velocity of the car change without changing the average speed of the car? Please answer in 100 words!
asked by Jennifer 
Science
You push a book on a table so that its velocity is constant. If the force that you apply is 15N. What is the force due to sliding friction? If you accelerate , so that the velocity is no longer constant is the force that you are applying to the book
asked by Jennifer 
Science
I need an example of a disaccharide. Would an examle be lactose?
asked by Megan 
American History
Who influenced the writers of the Dec. of Ind.?
asked by Joey