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February

Questions Asked on February 1, 2008

iron (III) oxide is formed when iron combines with oxygen in the air. how many grams of Fe2O3 are formed when 16.7g of Fe reacts
1. 2 answers
2. asked by cambell
3. 8,144 views
a 5 kg fish swimming at a speed of 1m/s swallows an absent minded 1 kg fish swimming toward it at 4 m/s. the speed of the larger
1. 1 answer
2. asked by a/p
3. 4,474 views
Replace each letter with a number to make the problem correct. Identicle letters are placed with identicle numbers. PARTS x 4 =
1. 8 answers
2. asked by Dylan
3. 4,044 views
Hi, I'm in need of some help with the poem "Marvell's garden" by Phyllis Web. I'm stuck on what the tone of the poem? and having
1. 8 answers
2. asked by Danielle
3. 3,652 views
Calculate the force of gravity between a 2.50 kg newborn baby and a 80.0 kg doctor standing 0.250 m away. G = 6.67 E -11
1. 2 answers
2. asked by Bongo
3. 3,029 views
How much work must be done to bring three electrons from a great distance apart to 1.0 * 10^(-10)m from one another (at the
1. 3 answers
2. asked by Jenish
3. 2,734 views
In a television picture tube, electrons are accelerated by thousands of volts through a vacuum. If a television set were laid on
1. 1 answer
2. asked by Jenish
3. 2,492 views
A transversal intersects two parallel lines and forms eight angles. Which of the following statements is false?a)alternative
1. 2 answers
2. asked by robert
3. 2,390 views
Liquid Butane, C4H10, is stored in cylinders to be used as a fuel. Suppose 39.3g of butane gas is removed from a cylinder. How
1. 2 answers
2. asked by Lauren
3. 1,738 views
Read the following scenario:As a customer service manager for a local software development company, you want to create a user
1. 3 answers
2. asked by Dawn
3. 1,376 views
How many liters of O2 are needed to react completely with 45L of H2S at STP?2H2S(g) + 3O2(g) --> 2SO2(g) + 2H2O(g)
1. 2 answers
2. asked by Anonymous
3. 1,375 views
how many liters of chlorine gas can be produced when .98L of HCl react with excess O at STP? 4HCl(g) + O2(g) => 2Cl(g) + 2H2O(g)
1. 1 answer
2. asked by Lotherio
3. 1,363 views
if 8.6L of H2 reacted with 4.3L of O2 at STP, what is the volume of gaseous water collected (assuming none of it condenses)?
1. 1 answer
2. asked by Theordore
3. 1,362 views
I am a student in the ninth grade and I need help with the following problems because I do not understand how to do them. I
1. 8 answers
2. asked by Theodore
3. 1,345 views
The total pressure in a flask containing air and ethanol at 257C is 878 mm Hg. The pressure of the air in the flask at 257C is
1. 1 answer
2. asked by James
3. 1,230 views
I got 2 questions and I've been stuck on them for days and its due in 2 days.1. For a quick way of doing multiplication, you can
1. 3 answers
2. asked by Sindy
3. 1,200 views
for the reaction 2Na(s) + Cl2(g) -> 2NaCl(s), how many grams of NaCl could be produced from 103g of Na and 13L of Cl2 (at STP)
1. 2 answers
2. asked by Sal
3. 1,188 views
Liquid Butane, C4H10, is stored in cylinders to be used as a fuel. Suppose 39.3g of butane gas is removed from a cylinder. How
1. 3 answers
2. asked by Lauren
3. 1,147 views
For the autoionisation of water, it looks like2H2O(l)-> H3O+(aq) + OH–(aq) I thought that becuase it is going from liquid to
1. 1 answer
2. asked by Supaman
3. 1,137 views
Carbon dioxide is released into the air from the combustion of octane (C8H18). How much octane will you need to get 5.00 moles
1. 4 answers
2. asked by Chelsea
3. 1,135 views
I'm doing a report on Hypatia of Alexandria (just in case you don't know her, she's the first ever known female mathematician),
1. 1 answer
2. asked by Emily
3. 1,099 views
aluminum reacts with sulfuric acid to produce aluminum sulfate and hydrogen gas. how many grams of aluminum sulfate would be
1. 2 answers
2. asked by max
3. 1,085 views
Create a table that list the strengths and challenges of traditional systems development life cycle, prototyping, rapid
1. 0 answers
2. asked by Shawn
3. 1,039 views
which would be the limiting reagent in the reaction: 2H2(g) + O2(g) => 2H2O(g)1. 50 molecules of H2 or 2. 50 molecules of O2
1. 1 answer
2. asked by gus
3. 1,031 views
If there is a sample of pennies that has a mass of 857.2 g. What is the average mass of a penny that is 2.73 g. How many pennies
1. 2 answers
2. asked by Kiara
3. 1,024 views
What does Walt Whitman mean honeyed morphine on line 27 of the poem myself
1. 1 answer
2. asked by sue
3. 1,000 views
A firm and a worker interact as follows. First, the firm can make 2 contract offers (wage, jobtype): (w, z=0) and (w, z=1) where
1. 0 answers
2. asked by Myolie
3. 923 views
Every morning, as she prepares for her two-hour drive to work, Carole gets a headache,identify the stressor in this situation.
1. 2 answers
2. asked by Charlene
3. 917 views
When you complete a acid base titration of NaOH and HCl and how to you find the molarity/concentration of HCl. I used 9 mL of
1. 1 answer
2. asked by Steve
3. 912 views
when iron rusts in air, iron(III) oxide is produced. how many moles react with 2.4 iron in the rusting reaction? 4Fe(s) + 3O2(g)
1. 1 answer
2. asked by Laura
3. 911 views
What is the formula for CPI consumer price index? and how it is use to calculate prices?
1. 2 answers
2. asked by Tim
3. 881 views
How do I solve this?How many grams of solid NaOH are required to prepare 200 mL of a 0.05 M solution? What will be the
1. 1 answer
2. asked by stew
3. 853 views
How do you find the decimal notation of 22/25?
1. 1 answer
2. asked by Casey
3. 850 views
Suppose a firm estimates its cost of capital for the coming year to be 10 percent. What are reasonable costs of capital for
1. 5 answers
2. asked by JM
3. 849 views
What was the date texas declared its independence?
1. 1 answer
2. asked by BBT104
3. 828 views
A figure is transformed into a new figure by being rotated 180 degrees, translated left 6 units, and dilated by a factor of 4.
1. 1 answer
2. asked by robert
3. 805 views
Factor (15a squared bc squared -9a squared b to the fourth c) by finding the gcf.I think the answer is 3abc(5ac-3ab3). I got it
1. 2 answers
2. asked by robert
3. 799 views
I need help solving this logarithmic function: x = log3(4^3).
1. 1 answer
2. asked by Danielle
3. 783 views
A quantity of ice at 0.0 degrees C was added to 33.6 of water at 21.0 degree C to give water at 0.0 degrees C. How much ice was
1. 1 answer
2. asked by Lauren
3. 772 views
how many grams of CO are needed to react with an excess of Fe2O3 to produce 209.7gFe? Fe2O3(s) + 3CO(g) => 3CO2(g) + 2Fe(s)
1. 2 answers
2. asked by Theodore
3. 766 views
Each of the following statements has 1, 2, or 3 conceptual flaws. Explain what is wrong with each sentence (I just need help
1. 2 answers
2. asked by Aestas
3. 739 views
Please answer this as soon as possible - Why are mutations that occur in an organism's body cells not passed onto its offspring?
1. 1 answer
2. asked by Alyssa
3. 719 views
I am totally confused. Does my answer make sense or do I need to start over? The more I read it the more I doubt my answer. I am
1. 2 answers
2. asked by Jamie
3. 718 views
In a lab I did, I put slices of potatos in varying amounts of sugar concentrations and one control group which contained only
1. 2 answers
2. asked by Steve
3. 708 views
If you have a 12.01g sample carbon. What would be the average mass of a carbon atoms if it is 1.994 x 10 to the 23 power g. How
1. 2 answers
2. asked by Tati
3. 695 views
I wrote a critique and had to include a works cited page.I didn't use quotes or anything. I just summarized what was said in
1. 1 answer
2. asked by Ashlynne
3. 686 views
When a student plotted ln [vapor pressure of a gas] vs. inverse Kelvin temperature, she obtained a straight line with a slope
1. 3 answers
2. asked by Myra
3. 680 views
Thank you drwls.I was not reading my own question clearly. I am trying to make the equation true for an object that is 100
1. 3 answers
2. asked by Marysvoice
3. 680 views
Is there someone out there that can tell me if I answered this right or if I need to study some more? ThanksWhat is it that
1. 1 answer
2. asked by Bethany
3. 671 views
i know how to do the majority of these type of questions, but i don't know how to simplify this one all the way..8(2x-1)^3= 125
1. 2 answers
2. asked by Anonymous
3. 650 views
Okay, I totally don't get this. It says: In peas, the alele for green pods(G) is dominant over the alele for yellow pods(g).
1. 1 answer
2. asked by Alyssa
3. 621 views
I have a couple of questions, thanks so much.If a country were to increase the value of their currency, how could that improve
1. 2 answers
2. asked by Tony
3. 607 views
A 35.8f sample of cadminum metal was melted by an electric heater 4.66 J/s of heat. If it took 6.92 min from the time the metal
1. 1 answer
2. asked by Lauren
3. 605 views
A gas initially at 30C must be changed to ? C to triple the pressure.
1. 2 answers
2. asked by jessica
3. 604 views
I was given an answer to a question but what I really need are the steps to get there as I have other questions I need to answer
1. 1 answer
2. asked by Marysvoice
3. 600 views
A sample of O2 gas is placed in a sealed 1.00 L flask and pressure is measured as temperature is changed. The data are plotted
1. 2 answers
2. asked by Adam
3. 594 views
In Lord Of The Flies, Jack leaves part of what they kill for the beast. What does this remind you of, in general?
1. 2 answers
2. asked by Jake
3. 593 views
In a class of 30 chemistry students, 17 of the students are female. What percentage of students is female?
1. 1 answer
2. asked by Tati
3. 592 views
Methanol, CH3OH a colorless, volatile liquid was formely known as wood alcohol. It boils at 65.0 degrees C and has a heat
1. 1 answer
2. asked by Lauren
3. 586 views
what is a synonym for the word allusion?
1. 2 answers
2. asked by Anonymous
3. 578 views
bonjour,je viens de voir ce que j'avais écrit et je m'en excuse. Il est vrai que l'alcool a des effets néfastes et je viens de
1. 3 answers
2. asked by mk-tintin
3. 576 views
science concept map!!test tubes matter oxygen please please please please HELP!!
1. 2 answers
2. asked by Jenna
3. 575 views
What is the average mean of the following data set:2, 8, 6, 4, 2, 4, 5 (round your answer to 2 decimal points)?
1. 6 answers
2. asked by Lisa
3. 566 views
A sample of O2 gas is placed in a sealed 1.00 L flask and pressure is measured as temperature is changed. The data are plotted
1. 1 answer
2. asked by roxanne
3. 563 views
in 2CO(grams) + O2(grams) => 2CO2(grams), what is the ratio of moles of oxygen used to moles of CO2?
1. 3 answers
2. asked by cam
3. 561 views
The total pressure in a flask containing air and ethanol at 257C is 878 mm Hg. The pressure of the air in the flask at 257C is
1. 0 answers
2. asked by jin
3. 555 views
which of the following frenquencies falls in the range of RF waves used by commercial radio broadcasting stations
1. 1 answer
2. asked by tran
3. 555 views
I have a question and I need to prepare the final accounts. In the additional information one of the questions is as follows:Mac
1. 1 answer
2. asked by Claire
3. 552 views
When a boy becomes a teenager, he often wants to show his independence.What is the personal pronoun and antecedent in this
1. 1 answer
2. asked by Jessica
3. 550 views
A gas initially at 20 C must be changed to____ C to triple the pressure.
1. 1 answer
2. asked by Hunter
3. 549 views
is the law of conversation of mass a reason why actual yield is less than theoretical yield?
1. 1 answer
2. asked by francine
3. 544 views
IF Twenty-five percent of your budget will be used to rent business space and pay for utilities. How do you write an algebraic
1. 2 answers
2. asked by confused
3. 544 views
Name the documents from which the Framers of the Constitution used ideas.
1. 1 answer
2. asked by amanda
3. 542 views
Can someone help me with NPV,IRR,MIRR, and Payback values? I need to know how to figure out the answers.
1. 1 answer
2. asked by carol
3. 537 views
The fourth largest is the Arctic Ocean. IfP over 12 (p/12) stands for the approximate area of the Arctic, then what is the
1. 2 answers
2. asked by Annie
3. 533 views
The total pressure in a flask containing air and ethanol at 257C is 882 mm Hg. If the pressure of the air in the flask is 762 mm
1. 1 answer
2. asked by James
3. 533 views
what is the price index for 2007 when $675.00 is total expenditure for that year and $600.00 for 2006. These total expenditures
1. 1 answer
2. asked by DV
3. 531 views
couple theory questions i don't quite understand...What is vapor pressure ad why does it change with temperature? and... The
1. 1 answer
2. asked by alicia
3. 530 views
If you have a total budget of 118,000 what integer would represent a total budget?
1. 3 answers
2. asked by Help needed
3. 530 views
When a student plotted ln [vapor pressure of a gas] vs. inverse Kelvin temperature, she obtained a straight line with a slope
1. 1 answer
2. asked by Anonymous
3. 528 views
Last question I hope...here is the problemThis equation illustrates your remaining funds after paying for rent and utilities.
1. 1 answer
2. asked by Help needed
3. 526 views
When a student plotted ln [vapor pressure of a gas] vs. inverse Kelvin temperature, she obtained a straight line with a slope
1. 0 answers
2. asked by jin
3. 525 views
hwo do i calculate theoretical yield?
1. 2 answers
2. asked by Sean
3. 523 views
Patrick has a summer job passing out flyers for a store. Each flyer weighs about 0.55 ounce. If he is given a bundle of flyers
1. 4 answers
2. asked by robert
3. 521 views
Ok. when it comes to writing expression I get all confused can some help with this problem.....pleaseSuppose an investor has
1. 3 answers
2. asked by Help needed
3. 519 views
Are ther any words that end with the letter WH?
1. 3 answers
2. asked by Sonja
3. 509 views
35 minutes = _____ hours (fraction) is the answer 1 5/12
1. 1 answer
2. asked by Janae
3. 505 views
I just don't understand why is the index expressed as 100 for the base year
1. 1 answer
2. asked by Pt
3. 505 views
That social injustice does not justify violent action?I'm not exactly understanding what the question is asking. Any places
1. 3 answers
2. asked by Pingu Head
3. 497 views
List 4 different ways in which the function of hemoglobin could be changed by a single amino acid substitution.i have no sweet
1. 0 answers
2. asked by Jonny
3. 489 views
I am trying to find tests physial/chemical to distinguishan aluminum and iron mixture.
1. 3 answers
2. asked by Jim
3. 486 views
What (metric) units are used for mass measurements?
1. 0 answers
2. asked by Lisa
3. 485 views
Thank you bobpursley.In question 2, if sea level is 3963 miles from the center of the earth can I change the equation to figure
1. 1 answer
2. asked by Marysvoice
3. 475 views
how many miles from tokyo yo honolulu
1. 2 answers
2. asked by Anonymous
3. 472 views
What is the only continent that traces of ancient human life have not been found?
1. 2 answers
2. asked by Rachel
3. 469 views
How to calculate the CPI for expenditures?Given: 2001 $645 2002 $545
1. 1 answer
2. asked by DV
3. 463 views
What is the process for ammending the Constitution of Iowa?
1. 2 answers
2. asked by Celia
3. 462 views
The total pressure in a flask containing air and ethanol at 257C is 878 mm Hg. If the pressure of the air in the flask is 762 mm
1. 0 answers
2. asked by Vy
3. 461 views
what is the area of the shang dynasty!!
1. 1 answer
2. asked by favi
3. 459 views
need help to solve the following ploblem, and like problems:5 minutes = _____ hours (what is the fraction) I'm in the 5th grade
1. 1 answer
2. asked by Janae
3. 458 views

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