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Questions Asked on March 26, 2008

write the chemical equations for the following sentencesa) Aluminum reacts with oxygen to produce aluminum oxide I put Al + O2
1. 3 answers
2. asked by john
3. 4,419 views
A simple pendulum, 2.0 m in length, is released with a push when the support string is at an angle of 25° from the vertical. If
1. 3 answers
2. asked by icy
3. 3,760 views
Calculate the work done by planet X on its moon.Planet X applies a force of 5.6 x 10^10 N on its moon and the moon is 4.0 x 10^8
1. 1 answer
2. asked by Marty
3. 2,892 views
Balance the following oxidation-reduction reaction in acid solution:SO32- + MnO4- --> SO42- + Mn2+ + H2O
1. 2 answers
2. asked by Anonymous
3. 2,828 views
A steam engine's boiler completely converts 155 kg of water to steam. This process involves the transfer of 3.5 x 10^8 J by
1. 6 answers
2. asked by Lindsay
3. 2,228 views
complete each of the following synthesis reactions by writing both a word equation and a chemical equationa) sodium +
1. 5 answers
2. asked by john
3. 2,187 views
From the foot of a building I have to look upwards at an angle of 22 degrees to sight the top of a tree. From the top of the
1. 2 answers
2. asked by liz
3. 1,906 views
An underwater scuba diver sees the sun at an apparent angle of 45 degrees from the vertical. What is the actual angle of the
1. 3 answers
2. asked by nat
3. 1,706 views
Copper (II) flouride contains 37.42% F by mass. Use this percentage to calculate the mass of flourine (in grams) contained in
1. 1 answer
2. asked by Anonymous
3. 1,592 views
Find a polar equation for the curve represented by the given Cartesian equation.a. y=5 b.2xy=1 I know i posted a question just
1. 1 answer
2. asked by Jessica
3. 1,577 views
At a height of 3.00 m above the ground, a 0.500-kg ball is thrown with an initial speed of 30.0 m/s in an arc from point A to
1. 1 answer
2. asked by Marty
3. 1,518 views
Find the cartesian coordinates of the following points given in polar coordinates.b. (2 rt2, 3pi/4) I cant figure this one out
1. 1 answer
2. asked by Jessica
3. 1,474 views
In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of
1. 4 answers
2. asked by Cindy
3. 1,443 views
A house has well insulated walls. It contains a vol of 100m^3 of air at 300Ka) calculate the E required to increase the T of the
1. 6 answers
2. asked by ~christina~
3. 1,397 views
i need the rate of change for: growing from 1.4 to 1.6m in one year
1. 1 answer
2. asked by taylor
3. 1,321 views
Find a cartesian equation for the curve described by the given polar equation.a. r=2 b. r=3sin pheta c.r^2=sin2pheta I don't
1. 1 answer
2. asked by Jessica
3. 1,271 views
Can someone start me off on these and please explain step by step how you got everything because I'm having difficulty
1. 1 answer
2. asked by Alex
3. 1,261 views
Two observation posts are 12km apart at A and B. From A, a third observation post C is located such that angle CAB is 42 degrees
1. 1 answer
2. asked by liz
3. 1,239 views
According to the law of conservation of mass, how does the mass of the products in a chemical reaction compare to the mass of
1. 1 answer
2. asked by SONITRA
3. 1,181 views
I've been readin the book "To kill a mockingbird'I've been given this question to write an essay about. 'What is the
1. 1 answer
2. asked by Mockingbird
3. 1,158 views
i am doing a worksheet for cause and effect and well i can not anywhere find an cause to why the second continental congress
1. 1 answer
2. asked by sam
3. 1,151 views
How many butane molecules are present in a sample that contains 5.0 moles of butane? (Butane- C4H10)What would be the mass of 75
1. 2 answers
2. asked by Kate
3. 1,118 views
Is a starch molecule smaller or larger than an iodine molecule?
1. 3 answers
2. asked by Claire
3. 1,112 views
An electric car accelerates for 8.0s by drawing energy from its 320-V battery pack. During this time, 1300C of charge pass
1. 2 answers
2. asked by Karmen
3. 1,086 views
Hello,My group has been assigned to do a General Market Survey on a foreign country (we picked France). Can anyone give us some
1. 1 answer
2. asked by Chloe
3. 1,065 views
A child looks at his reflection in a spherical tree ornament 12 cm in diameter, and sees an image of his face that is reduced by
1. 5 answers
2. asked by Anonymous
3. 1,037 views
for each of the following synthesis reaction indentify the missing reactant(s) or product(s) and then balance the resulting
1. 5 answers
2. asked by john
3. 1,023 views
lois rode her bike to visit a friend. She traveled at 10 miles an hour. While she was there it began to rain. Her friend drove
1. 3 answers
2. asked by scooby doo
3. 942 views
Write each of the following ratios in simplest form.The ratio 5 3/5 to 2 1/10
1. 1 answer
2. asked by Ms. Teri
3. 934 views
what mountain range separates Europe and Asia?
1. 4 answers
2. asked by roy
3. 924 views
a set of 20 cards is numbered 1,2,3,... ..20. Suppose you pick a card at random without looking. Find the probability of each
1. 1 answer
2. asked by Jordan
3. 920 views
Sam and Markus are standing on level ground 100m apart. A large tree is due North of Markus and on a bearing of 065degrees from
1. 0 answers
2. asked by matt
3. 903 views
Where can I find the correct meaning of the following terms: Stereotype, Gender group, Pluraism, Sociology, Minority group,
1. 1 answer
2. asked by Stacey
3. 853 views
Describe a time when your moral values influenced the way you responded to an issue. What differences did you notice between
1. 2 answers
2. asked by rose
3. 830 views
Based on the question topic posted by Britney below titled:In your opinion(your answer to this reminded me of something) (I
1. 2 answers
2. asked by ~christina~
3. 829 views
Look at the bingo board. There are nine sentences in nine boxes. Look at the small bingo board over the big one. There are three
1. 1 answer
2. asked by John
3. 792 views
Four questions ...1) How can you account for the observation that a mass or colony of bacteria shows pigmentation while the
1. 0 answers
2. asked by Cherie
3. 768 views
I've just read the book 'To Kill a Mockingbird and I have to write an essay on the question "Explain how the themes of prejudice
1. 3 answers
2. asked by TP
3. 768 views
An electron and a proton are initially very far apart (effectively an infinite distance apart). They are then brought together
1. 1 answer
2. asked by Becky
3. 763 views
two lines y=-2x+6 and y=1.5x+1 intersect. What is the size of the acute angle at the intersection?Ive got 59.4 degrees. Any
1. 1 answer
2. asked by Mikal
3. 759 views
This is how much I've done so far, not finished yet but could you see if I'm on the right track?I'm following the structure of
1. 4 answers
2. asked by TP
3. 757 views
I am writing a persuasive paper and have completed the first two paragraphs please proofread and suggest anything that could
1. 5 answers
2. asked by Britney
3. 754 views
Hi Mme.This is the last time i promise. I completely finished the poem but i just want you to give it one lat look i wasn't too
1. 5 answers
2. asked by Claire
3. 743 views
1. The relationship between amir and hassan is, in some ways, intended to highliht the contrast between the shiite sunni sects.
1. 1 answer
2. asked by gab
3. 734 views
A battery with voltage drop of 120V is connected in a ciruit containing both series and parallel. Moving in a clockwise
1. 1 answer
2. asked by Andrea
3. 719 views
I replied to that post from yesterday. I don't know if you saw it.
1. 8 answers
2. asked by ~christina~
3. 714 views
During the compression stroke of a certain gasoline engine, the pressure increases from 1.00atm to 20.0atm.If the process is
1. 2 answers
2. asked by ~christina~
3. 703 views
juan drives to work. Because of traffic conditions, he averages 22 miles per hour. He returns home averaging about 32 miles per
1. 0 answers
2. asked by nathan
3. 700 views
Can someone start me off on these and please explain step by step how you got everything because I'm having difficulty
1. 1 answer
2. asked by Alex
3. 698 views
Were the Korean and Vietnam Wars part of the Cold War?Thanks!
1. 2 answers
2. asked by Liam
3. 697 views
how does mechanical digestion occur in the small intestine?What three enzymes are involved in chemical digestion of small
1. 0 answers
2. asked by john
3. 694 views
These are questions that follow a lab on resonance with tuning forks and a resonance tube in a water-filled graduated cylinder
1. 1 answer
2. asked by Mike
3. 694 views
fred begins walking at three mi/h. john leaves his house at the same time and walks towards freds house at a rate of 2 mi/h. how
1. 2 answers
2. asked by nathan
3. 681 views
A light house is 1 km off shore. A marathoner is running along the shore. The search light on the light house is rotating at a
1. 3 answers
2. asked by samir
3. 679 views
The following are possible supporting arguments for my research paper on the success of the women's rights movement. Can someone
1. 1 answer
2. asked by Lily
3. 650 views
imagine that you are a member of the second continental congress.how would you write a letter to king goerge the 3rd explaining
1. 4 answers
2. asked by sam
3. 650 views
A standard tip for a waiter or waitress is between 15% and 20% of the bill. If Sue wants to tip 20% of her $45.00 dinner bill,
1. 1 answer
2. asked by marquis
3. 625 views
I made this question, just wanted to make sure it didn't drown under the tide...I've set a problem up, something like this. s^4:
1. 2 answers
2. asked by David
3. 624 views
How would I write the following quadratic function in standard form?The function is -(9x+2)^2+4x? What is the process for
1. 1 answer
2. asked by Claire
3. 620 views
Let's play the 'who is it' game, in which the appropriate person stands up.Class, first, stand up. I will ask you questions. If
1. 3 answers
2. asked by John
3. 619 views
Can you please help with this question. The only thing that I have come up thus far is that I am using the z critical value
1. 1 answer
2. asked by Jim
3. 618 views
Hi, I had an SAT question of the day that I cannot figure out. The question is:If it is now 4:00 p.m. Saturday, in 253 hours
1. 2 answers
2. asked by Vanessa
3. 617 views
Determine whether the following pairs of planes are coincident, parallel and distinct or neither.a) x + 3y - z - 2 = 0 and 2x +
1. 1 answer
2. asked by Anonymous
3. 616 views
plan for a job search by considering how you would manage the 'resume', job application letter, interview, and follow-up letter.
1. 0 answers
2. asked by Anonymous
3. 614 views
What's the root or base of the word "Deceit"? Or it doesn't have any?
1. 2 answers
2. asked by Kiki
3. 606 views
You have a friend who is always getting into trouble by taking unwise risks. What advice would you give this person?What advice
1. 2 answers
2. asked by jean
3. 596 views
I have a paper to write. The topic is "Describe the ways that the government can effect the economy. Which is the way that
1. 1 answer
2. asked by Kasey
3. 595 views
Can someone please send me a link or tell me what happens when the following reactions takes place? As in...the colour change
1. 3 answers
2. asked by Daggeron
3. 590 views
The th in brother is a voiced sound, and the th in three is a voiceless sound. Do you know how to pronounce the th sound? Stick
1. 2 answers
2. asked by John
3. 590 views
Next step, multiply both sides by (.01-x).012(.01-x)=.01x+x^2 gather terms, put in standard binomial form, use the quadratic
1. 2 answers
2. asked by lyne
3. 583 views
which one of the following frequencies of a wave in the air can be heard as an audible sound by the human ear? A.0.10Hz B 10 Hz
1. 2 answers
2. asked by emma
3. 576 views
A|-----2 ohm r-----------2 ohm r--| | | | ___ 5 ohm r 3 ohm r - | | | ___ _ 2 ohm r - ___ | | | | I3 | | | |
1. 3 answers
2. asked by Bobby
3. 571 views
Marla begins walking at 3 mi/h toward the library. Her friend meets her at the halfway point and drives her the rest of the way
1. 1 answer
2. asked by scooby doo
3. 560 views
Two people start at the same place and walk around a circular lake in opposite directions. One has an angular speed of 1.2 10-3
1. 1 answer
2. asked by Erich
3. 560 views
Posted by lyne on Tuesday, March 25, 2008 at 11:44pm.What is the pH ( 3 significant digits) of a 0.01 M solution of sulfuric
1. 1 answer
2. asked by lyne
3. 549 views
I wrote this as a topic sentence for a Hamlet essay (it is a compare/contrast essay between the play and the 2000 film
1. 2 answers
2. asked by Anonymous
3. 548 views
DrBob has given you the equation to use:k2 = [H^+][SO4^-]/[HSO4^-] and the values to substitute [H^+] = 0.01 + x [SO4^-2] = x
1. 3 answers
2. asked by lyne
3. 545 views
Find the differences between the following values:a) 217 and -198 b) 1 2/3 and 3/4 c) $o.59 and $1.25 What am I suppose to do?
1. 2 answers
2. asked by Joy
3. 542 views
What is the pH ( 3 significant digits) of a 0.01 M solution of sulfuric acid? Hint is that the first ionization constant is
1. 0 answers
2. asked by lyne
3. 536 views
How would I graph equations in Microsoft Excel 2003 and the residuals? I want to graph linear, quadratic and exponential
1. 3 answers
2. asked by Nina
3. 535 views
A gyroscope consists of a rotating uniform disk with a 60-cm radius, suitably mounted at one end of a 15-cm-long axle (of
1. 0 answers
2. asked by kelly
3. 531 views
Two balls are to be selected without replacement from a bag containing one red, one blue, one green, one yellow, and one black
1. 0 answers
2. asked by Kate
3. 528 views
How can you use a curved mirror to make a telescope?If possible, if there a diagram somewhere?
1. 1 answer
2. asked by TP
3. 528 views
Need to know the principal rivers, mountains, and bodies of salt and fresh waters within and around China, Taiwan, Japan, North
1. 7 answers
2. asked by Dave
3. 517 views
I posted my work a few minutes ago, can somebody check it for me please.thanks a lot. Rose
1. 1 answer
2. asked by rose
3. 516 views
5 (6-2x) = -3 (-2x + 6)whats the value of x in each (has to be the same)
1. 4 answers
2. asked by sidney
3. 515 views
Ive just watched the film mississippi burning and now i have to write an essay on the themes tolerance and prejudice. But i have
1. 1 answer
2. asked by bk
3. 512 views
For my Work and Family Life class I my teacher gave us a picture of a child. Everyone has a child from a different country. My
1. 2 answers
2. asked by Taylor
3. 506 views
Write the proportion that is equivalent to the given statementIf Maria hit 8 home runs in 15 softball games, then she should hit
1. 4 answers
2. asked by Ms. Teri
3. 502 views
k2=[H][SO4]/[HSO4].012=(.01+x)(x)/(.01-x) Solve for x, and calculate pH where H is .01+x When I am solving for x does it become
1. 1 answer
2. asked by lyne
3. 495 views
I'm trying to write an essay on the roles of nature. I must use passages from the readings of Emerson,Thoreau and other Concord
1. 1 answer
2. asked by Tesia
3. 493 views
I am doing a paper and need a few opinions on the following topic:Why is it better to go to college rather than just settle with
1. 8 answers
2. asked by Britney
3. 487 views
if you had ever read a nancy drew book you know that there is always a mystery to be solved . bess and goerge always tag along
1. 1 answer
2. asked by sam
3. 486 views
Use the counting principle to determine the number of different arrangements of bicycles that are possible.
1. 1 answer
2. asked by Kate
3. 483 views
please check my answer thanksTrue or false Blood gains oxygen when it passes through the liver I said True
1. 1 answer
2. asked by Anonymous
3. 481 views
hiwhy do brand names are dold at a higher price ? So for example even though we have two identical products , one with a brand
1. 1 answer
2. asked by Student 1
3. 480 views
During a tennis serve, a racket is given an angular acceleration of magnitude 155 rad/s2. At the top of the serve, the racket
1. 0 answers
2. asked by Zach
3. 480 views
Find each rate.240 pounds of fertilizer 6 lawns
1. 3 answers
2. asked by Ms. Teri
3. 479 views
Explain three rules for exponents
1. 1 answer
2. asked by janet barnes
3. 478 views
Please cehck my answer thanksBlood gains what when it passes through the liver ? I think it is carbon dioxide
1. 2 answers
2. asked by Anonymous
3. 471 views

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