Questions Asked on April 21, 2009

4Fe(s) + 3O2(g) → 2Fe2O3(s)Identify the type of chemical reaction represented by this equation. is it redox?
1. 2 answers
2. asked by Anonymous
3. 4,274 views
what kind of music do astronauts like?
1. 19 answers
2. asked by Anonymous
3. 3,945 views
Explain, in terms of electrical energy, how the operation of a voltaic cell differs from the operation of an electrolytic cell
1. 2 answers
2. asked by Anonymous
3. 3,678 views
1. Hydrogen bromide(HBr) is a strong, highly corrosive acid and what is the pOH of a 0.0375M HBr solution?a)12.57 b)12.27 c)1.73
1. 4 answers
2. asked by anonymous
3. 3,543 views
write the balanced half reaction for the reaction of Al3+ to Al(3+ is the oxidation state) i don't understand... wouldn't you
1. 3 answers
2. asked by Anonymous
3. 3,468 views
A grain storage tank is in the shape of a cylinder covered by half a sphere. The height of the cylinder is 50 feet and its
1. 1 answer
2. asked by Kristen
3. 2,620 views
A: Hello. May I speak to Tom?B: Speaking. Who's calling, please? A: Hi, Tom. This is Sam. How are you doing? B: Just fine. How's
1. 1 answer
2. asked by John
3. 2,171 views
a bimetallic compound strip of brass and iron is 10cm long at 20C. When heated over a Bunsen burner flame the temperature of the
1. 7 answers
2. asked by cynthia
3. 1,890 views
2Na(s) + 2H2O(l) ==> 2Na^+(aq) + 2OH^-(aq) + H2(g)What is the the net ionic equation because it doesn't look like their is any
1. 1 answer
2. asked by Lenny
3. 1,849 views
The limestone blocks from which an ancient pyramid was made weigh about 2 tons per cubic yard. Find the approximate weight of
1. 1 answer
2. asked by Kristen
3. 1,837 views
An electron is accelerated through a uniform electric field of magnitude 2.5x10^2 N/C with an initial speed of 1.2x10^6 m/s
1. 5 answers
2. asked by Linn
3. 1,756 views
What is the potential difference required to accelerate a deuteron of mass 3.3x10^27kg and charges 1.6x10^-19C from rest to a
1. 5 answers
2. asked by Lucy
3. 1,685 views
Hi. This is my question:An art student wants to make a string collage by connecting six equally spaced points on the
1. 2 answers
2. asked by Ashfia
3. 1,558 views
Joseph rode his bicycle for 10 miles. Then he increased his speed to an average of 15 miles per hour for the next h hours. Write
1. 2 answers
2. asked by anonymous
3. 1,550 views
solvent layer: 1solid precipitate: no I ran the solvent layer I got in my unknown in the GC and I had sharp peaks in the
1. 7 answers
2. asked by ~christina~
3. 1,387 views
Write an equation. The sum of 2 consecutive integers 48.
1. 4 answers
2. asked by lostinmathclass
3. 1,383 views
3. Firms adopting a relationship marketing strategy by creating a community of buyers view their company's Internet web site as
1. 0 answers
2. asked by Bryan
3. 1,372 views
What is the electron configuration of the complex: Fe(C2O4)3 3-I am not really quite sure how to go about doing this and whether
1. 1 answer
2. asked by Anonymous
3. 1,364 views
An electron is accelerated through a uniform electric field of magnitude 2.5x10^2 N/C with an initial speed of 1.2x10^6 m/s
1. 2 answers
2. asked by Linn
3. 1,334 views
A container has a large cylindrical lower part with a long thin cylindrical neck. The lower part of the container holds 12.5 m^3
1. 1 answer
2. asked by seth
3. 1,263 views
so if the equation I'm using is 3CuSO4+2AL(NO3)3 arrow 3CU(NO3)2+Al2(SO4)3 how many moles of CuSO4 would be needed to produce 8
1. 2 answers
2. asked by Marc
3. 1,263 views
please check my answerDescribe the major territorial advances made by the United States in the 19th Century Ohio had been
1. 2 answers
2. asked by history
3. 1,233 views
A jar contains 2 red marbles, 3 green marbles, 4 blue marbles, and 5 yellow marbles. Two marbles are drawn in succession,
1. 1 answer
2. asked by Andrey L
3. 1,223 views
A group of students are traveling to Six Flags. One bus has 15 fewer than 2.5 times as many students as the other bus. Write an
1. 1 answer
2. asked by anonymous
3. 1,159 views
Below you will find 8 examples of thesis statements. Some a good examples and others are poor. Identify whether each statement
1. 1 answer
2. asked by Shannon
3. 1,149 views
"Describe how antibodies are produced and what they do in the response to infection."I've been looking all over my textbook and
1. 0 answers
2. asked by Emily
3. 1,093 views
Hi. This is my question:An art student wants to make a string collage by connecting six equally spaced points on the
1. 1 answer
2. asked by Ashfia
3. 1,065 views
explain the importance of the language of the romans?
1. 1 answer
2. asked by didi
3. 1,052 views
Construct and support an argument on your decision to pursue an MBA degree to further your career, or start or achieve a goal.
1. 2 answers
2. asked by SIMPLE
3. 1,043 views
why did king kong eat a truck?
1. 2 answers
2. asked by Anonymous
3. 1,004 views
A cylinder and a solid disc are released from rest from the top of a ramp.They roll down the hill without slipping. Which
1. 1 answer
2. asked by Sandy
3. 999 views
The molecular formula is:Na(s)+ H2O(l)---->NaOH(aq)+H2(g) This is showing a single displacement reaction.I am not sure how to
1. 1 answer
2. asked by Lenny
3. 991 views
when do you need to use the octet rule for lewis structures and when does it not applyi am confused for N2O4 i cant get the
1. 3 answers
2. asked by lyne
3. 968 views
Hello! Next Tuesday I am teaching a class for the first time! (I am still a student) This class is going to be graded.So, the
1. 2 answers
2. asked by laxy
3. 958 views
What fermentation products are made by both yeast and humans?Which product of fermentation is made by both humans and yeast? a.
1. 0 answers
2. asked by Mandy
3. 916 views
complete to find equivalent fractions3/4=3/4* / = /
1. 1 answer
2. asked by Deven
3. 912 views
Posted by Angeline on Monday, April 20, 2009 at 5:35pm.A few questions...how many grams are in 48.7x10^24? I don't know how to
1. 1 answer
2. asked by Angeline
3. 905 views
solve rational equation3/x-1=6/x+2
1. 2 answers
2. asked by ferrer
3. 905 views
Identify all the relative clauses in the following sentences. Which ones are restrictive and which are non-restrictive? How do
1. 1 answer
2. asked by Nora
3. 898 views
What are some real-life examples of exponential growth and decay?
1. 2 answers
2. asked by Nancy
3. 897 views
According to your study unit, a catering resource that offers global networking for caterers, mentors, a caterer's telephone
1. 6 answers
2. asked by barbie
3. 895 views
What are the family origins of Latinos and of Chicanos?
1. 1 answer
2. asked by Taye'
3. 888 views
An apartment building has 140 apartments, all renting at the same price. It is know that all the apartments can be rented if the
1. 0 answers
2. asked by Andrey L
3. 884 views
how can i tell if a molecule has one of the following features-incomplete octet -expanded shell -odd electron molecule for
1. 2 answers
2. asked by ashley
3. 882 views
You need to speak to someone about additional coverage to Medicare Parts A and B.Which of the following organizations should you
1. 0 answers
2. asked by Anonymous
3. 879 views
As promised, now that I had more time:Known: class is about 45 minutes long first-grade students are about 7 years old the topic
1. 1 answer
2. asked by SraJMcGin
3. 878 views
Known:Cyanaocetic acid Ka=3.55*10^-3 ionization equation: HC3H2NO2<==> H^+ + C3H2NO2^- Unknown: pH of 0.4M of Cyanaocetic acid I
1. 5 answers
2. asked by anonymous
3. 832 views
still am not sure how to solve rational expressionx/[5(x+2)] + (x-3)/(x+2) = 7/5
1. 1 answer
2. asked by ferrer
3. 818 views
a volumetric pyrex glass is calibrated at 20C. It is filled to the 100ml mark with 35C acetone. What is the volume of the
1. 1 answer
2. asked by garrick
3. 818 views
I need a more formal word or phrase for saying "beat up." My sentance is something like 'he beat him up' but i`m writing a
1. 2 answers
2. asked by Lena
3. 813 views
Am I using the word pungent correctly in this sentence:I almost gagged from the pungent odor of smoke. Am I using an apostrophe
1. 2 answers
2. asked by Twilight lover
3. 806 views
The main reason why the Constitution dealt specifically with the crime of treason was that:A. The framers wanted to prevent all
1. 1 answer
2. asked by Jonathan
3. 799 views
Ok I need some help of course. Please help me! What are the kinds of Eletromagnetic waves? How many are there? Ultra violet,
1. 0 answers
2. asked by sjsjfs
3. 784 views
What is the kcalorie value of a meal supplying 110g of carbs, 25g of protein, 20g of fat, and 5g of alcohol?Please help show
1. 0 answers
2. asked by lizzy
3. 763 views
A: How's your new math teacher?B: He is a nice and funny teacher. A: Really? That's great. B: Yes, I like him. A: Does he give
1. 1 answer
2. asked by John
3. 761 views
with only have the points on a triangle how would you determine the radius and center of the incircle of that triangle?
1. 2 answers
2. asked by kelly
3. 754 views
A new project will increase inventory and accounts receivable by an average of $1 million each. Cash levels and other working
1. 0 answers
2. asked by ann
3. 743 views
What is the key aspiration people in Pennsylvania???? I am reseaching Pennsylvania for extra credit....
1. 3 answers
2. asked by Courtney
3. 738 views
Select a management function (planning, directing and motivating, or controlling) and explain how that function relates to
1. 0 answers
2. asked by meshelle
3. 737 views
check:what effect did the Bakke decision have on affirmative action? a. it legalized racial quotas for admission to medical
1. 1 answer
2. asked by history
3. 735 views
We have state testing this week [CRCT] and I'm reviewing for the Language Arts part. 8th grade students are required to know a
1. 5 answers
2. asked by mysterychicken
3. 732 views
Need help on how to balance equations. Here are a few of the problems.First let me supply the w/s directions: Predict the
1. 1 answer
2. asked by Annonomous
3. 725 views
show how the ideas of the competing political positions on the creation of the new national government continued down to at
1. 3 answers
2. asked by history
3. 722 views
Suzy has a bag containing 5 red marbles, 2 green ones, 4 white ones, and 3 purple ones. She grabs 9 of them. Find the
1. 1 answer
2. asked by Sabrina
3. 722 views
a student has an avg of 57%. he has 2 test left which was are both worth 5% and 1 assigment worth 1 %. he also has 1 one big
1. 1 answer
2. asked by math
3. 713 views
Determine the number of colonies counted on the LB plate in the following transformation experiment.The amount of plasmid on the
1. 1 answer
2. asked by Frank Minimi
3. 707 views
A bag contains 5 red, 3 green, 12 white and 7 blue marbles. One is drawn at random. With is the probability it is green if it is
1. 2 answers
2. asked by Andrey L
3. 702 views
Instead of using 1-propanol or 2-pentanol, a student decided to conductthe same reaction (using Sodium Bromide and Sulfuric
1. 2 answers
2. asked by spirit
3. 697 views
Hello, may I speak to Tom?1. Who's calling? 2. Who's speaking? 3. Who's talking? (Are all the answers correct?)
1. 1 answer
2. asked by John
3. 690 views
I have no idea how to do these problems:Find an equation of each circle. 1. Center (3,5); tangent to the x axis 2. Center
1. 1 answer
2. asked by Amanda
3. 687 views
Can someone check my answers please!!!Simplify (tan ^2 theta csc^2 theta-1)/(tan^2 theta). My answer: 1 Simplify ((cos x)/(sec
1. 1 answer
2. asked by Austin
3. 685 views
The main purpose of a city's charter is to:a. create a boundary with the county b. set out the city's basic laws c. provides a
1. 1 answer
2. asked by Jennifer
3. 683 views
I am writing a comparative essay and I am creating my introductory paragraph. Should I start it with my thesis?
1. 2 answers
2. asked by Lena
3. 682 views
hpw would i draw a lewis structure for a molecule with 3.5 bondsfor example NO2???
1. 1 answer
2. asked by lyne
3. 676 views
Help Please! Need some reliable sources for state mandated tests? I feel the test interefere with teaching. I found 2 websites
1. 2 answers
2. asked by Anonymous
3. 665 views
37. Morage Corp. is replacing an entire baking line that was purchased for $420,000 and currently has a book value of $60,000.
1. 0 answers
2. asked by Lisa
3. 658 views
Instead of using 1-propanol or 2-pentanol, a student decided to conductthe same reaction you did starting with
1. 2 answers
2. asked by spirit
3. 658 views
I need 3 internet references for a research paper about how modern Japan effects modern U.S.A. I've looked for two days with no
1. 4 answers
2. asked by Leez
3. 648 views
Just wanted to check this. Are the two half reactions for 2K+CaSO4 yields K2SO4+Ca1K yields K^+1 + e^- and Ca^+2 + e^-2 yields
1. 1 answer
2. asked by Angeline
3. 647 views
one example of the shift in attitudes brought about by the women's movement was a significant change ina. racial discrimination
1. 1 answer
2. asked by history
3. 639 views
why did king kong eat a truck?
1. 0 answers
2. asked by luis
3. 639 views
The story is Ramona Quimby age 8if anyone knows that story line I am trying to help my son. I need to know where the story took
1. 2 answers
2. asked by Rose
3. 633 views
My teacher says the correct way to predict/balance the equation AL+HCL yields H+AlCl3 is to balance it like this: 2Al+6HCl
1. 3 answers
2. asked by Angeline
3. 632 views
How does war create unity? Im going from the perspective of that war brings people together to support the war especially when
1. 3 answers
2. asked by Kara
3. 630 views
o In the future, how will thinking critically influence the ways that you:Read? Write? Process information?
1. 0 answers
2. asked by Brittney
3. 617 views
I know the answer to this question, but I want to find a simpler way of doing it...---Find the sum of the counting numbers from
1. 3 answers
2. asked by Sahana
3. 617 views
Twenty equals four decreased by twice an unknown number.I need the equation and the solution please I'm almost
1. 2 answers
2. asked by Briana
3. 614 views
American Rhetoric: Citizen Kane what are some rhetorical devices, falacies, bias, arguments, and counterarguements in this
1. 2 answers
2. asked by Sarah
3. 611 views
Thank you for your earlier responses... I have another question to ask.... Have you ever read the "Song of Songs" by Ariel and
1. 2 answers
2. asked by trish
3. 604 views
In a bottling company, a machine can fill a 2-liter bottle in 0.5 seconds and move the next bottle into place in 0.1 seconds.
1. 1 answer
2. asked by Be
3. 602 views
after the war, women's magazines changed their emphasis toa. education and job skills b. homemaking, cooking, and child care c.
1. 1 answer
2. asked by history
3. 598 views
Okay, I have to interview my partner for this assignment.What would be 10 good questions that I could ask him? What would you
1. 6 answers
2. asked by John
3. 596 views
i have to write an argumentative research paper about a big topic that's has happen in the year 2008 til nw...can u give me a
1. 2 answers
2. asked by alicia
3. 593 views
What is the sum of root 50 and root 32?1) root 82 2) 20 root 20 3) 9 root 2 4) root 2
1. 1 answer
2. asked by Anonymous
3. 591 views
How did progressivism affect the role of the federal government in the early 1900s?please, please give me some good information
1. 1 answer
2. asked by history
3. 590 views
in huck finn what is the royal nonesuch? what makes it a scam?
1. 1 answer
2. asked by ...
3. 584 views
my teacher said that my poem doesnt have any rhythm or sound. can you please help me fix it and make it better? PLEASE!!!The
1. 1 answer
2. asked by john
3. 582 views
Please help me and thank you!I need help I don't now what are the frequency for Radio waves, microwaves, ultra violet, gamma
1. 1 answer
2. asked by sjsjfs
3. 582 views
Suzy has a bag containing 3 red marbles, 2 green ones, 4 white ones, and 6 purple ones. She grabs 5 of them. Find the
1. 2 answers
2. asked by Sabrina
3. 580 views
Write a mechanism to illustrate what will happen if the addition of bromine totrans-cinnamic acid is syn; what do you expect the
1. 0 answers
2. asked by janet
3. 577 views

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