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2008
April

Questions Asked on April 14, 2008

Naphthalene (C10H8)is a solid aromatic compound often sold as mothballs.The complete combustion of this substance to yield
1. 2 answers
2. asked by sasha
3. 3,876 views
If a copper sample containing some zinc impurity is to be purified by electrolysis, the anode and the cathode must be which of
1. 4 answers
2. asked by John
3. 3,630 views
using only the periodic table, write the expected ground-state electron configurations for:a. element number 116 b. an element
1. 2 answers
2. asked by aaloy
3. 2,692 views
A standard solution of FeSCN2+ is prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN. The equilibrium
1. 4 answers
2. asked by Renee
3. 2,141 views
use and activity series to Identify two metals that will not generate hydrogen gas when treated with and acidwrite balanced
1. 3 answers
2. asked by Katie
3. 1,745 views
A woman finds the front windshield of her car covered with ice at -12.6°C. The ice has a thickness of 4.80 10-4 m, and the
1. 1 answer
2. asked by Jaime
3. 1,723 views
1)What can you say about the motion of a body if:a. its displacement-time graph is a straight line inclined with the time axis
1. 1 answer
2. asked by Jon
3. 1,538 views
the bright yellow light emitted by a sodium vapor lamp consists of two emission lines at 589.0 and 589.6 nm. what are the
1. 6 answers
2. asked by justin
3. 1,354 views
verify that cos(A-B)/cosAsinB=tanA+cotB is an identity
1. 1 answer
2. asked by sam
3. 1,181 views
ex) Do you like baseball?Do you like jumping rope? Do you like jumping ropes? Do you like jump rope? Do you like rope jumping?
1. 1 answer
2. asked by John
3. 1,159 views
I'm currently writing an essay for university but have a slight problem with one of my references. The source comes from a book
1. 1 answer
2. asked by Harriet
3. 1,138 views
The amount of water needed daily by plants for photosynthesis, cell growth, and cell maintenance is very small, and yet plants
1. 1 answer
2. asked by Angel
3. 1,137 views
Could somebody please check these for me?Solve the differential equation with the given initial solution. 1. (dy/dx)=(-y/3) for
1. 0 answers
2. asked by tia
3. 1,133 views
1)How is displacement different from distance? Under what conditions can an object travel a certain distance and yet its
1. 2 answers
2. asked by Jon
3. 1,105 views
calculate the exact value of4 1/5 - (1 1/9 * 3)is it=39/45
1. 5 answers
2. asked by marsha
3. 1,092 views
Relax. The kid’s been delivering the paper for, how long? Three, four years maybe? And not once has she missed us. The paper
1. 3 answers
2. asked by Matt
3. 1,045 views
CAN SOMEONE PLEASE HELP ME WITH ASSISTENCE ON THE PREVIOUS PROBLEMS....OR SHOW ME HOW OR WHAT FORMULA TO USE.....ANYTHING IS
1. 3 answers
2. asked by JESSICA 33
3. 1,023 views
is Gandhi a political activist???
1. 1 answer
2. asked by Soraya
3. 990 views
What sport do you like best?I like rope jumping best. What sports do you like best? I like cricket and dodgeball best. Which
1. 1 answer
2. asked by John
3. 989 views
give the exact real number value without using a calculatorsin[(cos^-1)(1/4)] sin[(tan^-1)(3/4)+(tan^-1)(12/5)]
1. 1 answer
2. asked by billy
3. 972 views
a) Use the following data to compute averafe revenues per store, capital spending per new store, and ending inventory per store.
1. 0 answers
2. asked by Bob
3. 959 views
Your password for a given website is made up of three letters followed byfour numbers. Find the number of possible passwords if
1. 1 answer
2. asked by matt
3. 950 views
The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an
1. 1 answer
2. asked by david
3. 950 views
A free nuetron can decay into a proton, an electron, and a neutrino.Assume the neutrino's rest mass is zero, and the rest masses
1. 2 answers
2. asked by Jenish
3. 944 views
Hey I have the AP Chem test coming up and i was wondering where I could find the answer key to some of the AP Chemistry tests
1. 2 answers
2. asked by Corey
3. 939 views
The energy of the nth excited state of a hydrogen atom is proportional to 100 - (100/n2).1) Using this formula, calculate the
1. 1 answer
2. asked by CGUFF
3. 935 views
A weak base with a concentration of 1.3 mol/L has a percent ionization of 0.72%. What is the Kb of this weak base?could someone
1. 1 answer
2. asked by samantha
3. 883 views
In three of the last four presidential races, the winner of the Iowa Republican primary has not captured the Republican
1. 3 answers
2. asked by Matt
3. 883 views
solve 7^5x=23. round to the nearest ten-thousandthalso solve in (4x +5)=4 round to the nearest thousandth
1. 2 answers
2. asked by john
3. 874 views
Hana Middle SchoolThis is our school. It's 37 years old. There are 780 students and 34 teachers. We have a computer center and a
1. 6 answers
2. asked by John
3. 871 views
What carbohydrates are, the difference between simple and complex carbohydrates, how sugars are broken down and used in the
1. 1 answer
2. asked by Dawn
3. 866 views
I don't know where to begin with these problems would someone please call meFind the median of each set of numbers 14. 1, 4, 9,
1. 1 answer
2. asked by Theresa
3. 848 views
Can someone tell me if this objective for my lab report sounds alright?The objective of this multistep lab was to ultimately
1. 3 answers
2. asked by ~christina~
3. 814 views
Hi, can someone proofread this and let me know if there are any grammatical mistake. I'll appreciate it. Thanks.This experiment
1. 2 answers
2. asked by Bizzy
3. 799 views
i need help with world geography lesson from penn foster ezamination number 6648y if anyone has answers please help, thanx
1. 6 answers
2. asked by nathan
3. 788 views
How do you write a acrostic poem?
1. 4 answers
2. asked by Aben
3. 766 views
Trigonometry identities are so hard...I need some help proving these identities: *Oh, and I'm only in grade 11, so the
1. 5 answers
2. asked by Lucy
3. 754 views
I need an edible suspension for a project i am doing.
1. 4 answers
2. asked by casey
3. 740 views
i am writing a research paper about JOHN KEATS and his 3 works ( social political religious or any)_ but i didn't find some of
1. 3 answers
2. asked by martin
3. 739 views
AND THE LAST TWO ARE THE FOLLOWING:9. MARTHA LIND RECEIVED ANOTICE SHOWING THAT HER EMPLOYER PAID THESE BENEFITS BASED ON HER
1. 0 answers
2. asked by JESSICA 33
3. 724 views
A certain digital camera having a lens with focal length 7.5 cm focuses on an object 1.85 m tall that is 4.25 m from the lens.
1. 0 answers
2. asked by J
3. 710 views
how do i factorise:a)5a^2b+ab^2 b)9k^2-1 c)2y^2-5y+2
1. 1 answer
2. asked by margaret
3. 685 views
A boy starts from point A and moves 5 units toward the east, then turns back and moves 3 units toward the west. What is the
1. 1 answer
2. asked by Jon
3. 674 views
A farm boy studying physics believes that he can fit a 15.0 m long pole into a 12.0 m long barn if he runs fast enough (carrying
1. 0 answers
2. asked by raks
3. 672 views
use and activity series to Identify two metals that will not generate hydrogen gas when treated with and acidwrite balanced
1. 1 answer
2. asked by Katie
3. 668 views
Ammonia is a weak base. If Ammonium nitrate is added to it, the pH of the ammonia solution will _____________ (increase,
1. 1 answer
2. asked by Ken
3. 661 views
How did the consumer economy in the late 1800s effect American life?
1. 2 answers
2. asked by Anna
3. 657 views
help! Is it best to adjust instruction to teach in accordance with individual learning styles, or should students experience and
1. 3 answers
2. asked by Dawn
3. 655 views
how do i expand and simplify(2x+5) (3x-4)
1. 2 answers
2. asked by mina
3. 645 views
A 22.8 kg turntable with a radius of 47 cmis covered with a uniform layer of dry ice that has a mass of 4.08 kg. The angular
1. 3 answers
2. asked by Christina
3. 644 views
I would recommend parents to use articles that are written by college professors, a doctor in education, or a specialist in
1. 4 answers
2. asked by Bizzy
3. 631 views
The Rydberg equation (1=Rni 2–Rnf 2) can be treated as a line equation. What is the value of nf as a function of the slope (m)
1. 0 answers
2. asked by Chris
3. 629 views
suppose you invest 17000 at an annual interest rate of 3.9% compounded continuously? how much will u have in the account after
1. 1 answer
2. asked by john
3. 602 views
An electron (m=9.11 * 10^-31) enters a uniform magnetic field B=1.8T and moves perpendicular to the field lines with a speed
1. 1 answer
2. asked by Jenish
3. 600 views
How do I make an outline for a research paper?
1. 2 answers
2. asked by Eli
3. 595 views
• The article I chose is: how stuff works – communication.The type of introduction that the writer used was to include
1. 1 answer
2. asked by Tom
3. 594 views
Your password for a given website is made up of three letters followed byfour numbers. Find the number of possible passwords if
1. 3 answers
2. asked by matt
3. 593 views
. Since the graduates of Harvard, Yale, Princeton, and other Ivy League schools generally score higher on the Graduate Record
1. 1 answer
2. asked by Matt
3. 591 views
Michael Jackson has had more plastic surgery than anybody else in California. You can bet he’s had more than anybody in
1. 2 answers
2. asked by Matt
3. 591 views
I was having trouble with two different physics problems when studying for a test. Any help is appreciated.1.) A 11.6-kg block
1. 0 answers
2. asked by Sam
3. 590 views
I was having trouble with two different physics problems when studying for a test. Any help is appreciated.1.) A 11.6-kg block
1. 0 answers
2. asked by Sam
3. 586 views
How has learning about Organizational Behavior given you a better understanding of organizations in your community? Has what you
1. 4 answers
2. asked by deshaun
3. 582 views
The annual rainfall in California’s north valley averages twenty-three inches. So the rainfall next year will be twenty-three
1. 2 answers
2. asked by Chris
3. 574 views
What is the pH of the solution created by combining 2.00 mL of the 0.10 M base[ammonia] with 8.00 mL of the 0.10 M acid[acid
1. 2 answers
2. asked by HELP Plz
3. 571 views
I have another question that's got me stumped...The question of amendments to indictments is now mostly regulated by A: Common
1. 0 answers
2. asked by Justie
3. 569 views
I JUST NEED HELP IN DECIDING WHICH WAY TO SOLVE. I LIKE TO SOLVE THEM BUT I AM HAVING TROUBLE SETTING THEM UP...1. THE BOARD
1. 2 answers
2. asked by JESSICA 33
3. 564 views
. The number of cellular telephones has increased dramatically in each of the past few years. Therefore there will be even more
1. 3 answers
2. asked by Ahish
3. 562 views
A cylindrical ring of thickness 3.5mm.Each ring has internal diameter 14 mm and external diameter 16 mm.Taking pie=3.14
1. 3 answers
2. asked by sascha
3. 558 views
Calculate the pH and percent ionization for the solution made up of 0.035 M NH3 and 0.015 M NH4Br.
1. 1 answer
2. asked by Ken
3. 556 views
Hi I sent this question a few days ago but did not get it answered I think it may have been mixed up in the jumble.Purpose: The
1. 7 answers
2. asked by Joseph
3. 555 views
5. THE UNIT COST OF A BEGINNING INVENTORY OF 405 UNITS IS zzz$15.16. TH EUNIT COST OF THE LAST 600UNITS PURCHASED IS $16.81 .
1. 1 answer
2. asked by JESSICA 33
3. 551 views
First, it seems clear that even if there are occasional small dips in the consumption of petroleum, the general trend shows no
1. 3 answers
2. asked by Matt
3. 549 views
How could you use mental math to find 3x122?
1. 2 answers
2. asked by Chelsea
3. 548 views
hi i would want to know good websites for research about Mid summer night stream as we are going 2 start reading that book and
1. 4 answers
2. asked by numz
3. 547 views
In a molecular weight determination, a volume of an unknown gas effused through a small opening in 40 seconds while the same
1. 1 answer
2. asked by Casey
3. 541 views
given that l=-2, m=3 and n=7 calculate the value of: lm(m-n)
1. 1 answer
2. asked by keese
3. 537 views
When liquor was banned in 1920, hospitalizations for alcoholism and related diseases plummeted; in 1933, when Prohibition was
1. 3 answers
2. asked by Anne
3. 527 views
In 1875, which of these four political philosophies best addresses the political realities ofEurope? Why?
1. 1 answer
2. asked by Jarrod
3. 523 views
A ball is thrown vertically upward with a speed of 1.53 m/s from a point 4.21 m above the ground. Calculate the time in which
1. 4 answers
2. asked by Jon
3. 519 views
solve secx/2=cosx/2 over the interval[0,2pi) without using a calculator
1. 1 answer
2. asked by jake
3. 518 views
IF I have a perfectly elastic supply (horizontal), and the unit price of cigarettes goes up by increasing cigarette tax from 8
1. 1 answer
2. asked by Kurt
3. 516 views
This school building is 37 years old.This is a 37-year-old school building. The boy is 13 years old. He is a 13-year-old boy.
1. 1 answer
2. asked by John
3. 512 views
You want to take a full length photo of your friend who is 2 m tall, using a 35 mm camera having a 50 mm lens. The image
1. 0 answers
2. asked by J
3. 510 views
What was the least common and least sucessful form of slave resistance pre civi war?
1. 1 answer
2. asked by Alexis
3. 508 views
You expect to get forty miles to the gallon in that? Why, that old wreck has a monster V8; besides, it’s fifty years old and
1. 2 answers
2. asked by Matt
3. 506 views
Oil is flowing with a speed of 1.30 m/s through a pipeline with a radius of 0.315 m. How many gallons of oil (1 gal = 3.79
1. 0 answers
2. asked by Zach
3. 505 views
Does anyone have any suggestions on where I might find the answers to my question? I have tried several different ways, but have
1. 0 answers
2. asked by Kally
3. 504 views
I have to make up my own standardized questions for a project, and I wanted to make sure I did my math right. Can someone please
1. 1 answer
2. asked by Emily
3. 504 views
could you explain the difference of seen and saw.Thankyou.
1. 1 answer
2. asked by janice
3. 503 views
write the expression sin4xsin5x as a sum or difference of trigonometric functions
1. 0 answers
2. asked by sam
3. 502 views
did i factorise this correctly??8h^2-4h 2h(4h-2) 8h^2-4h
1. 1 answer
2. asked by sam
3. 491 views
explain why the movement of chlordie ions and water is reduced in a person with cystic fibrosis.please could someone help me!
1. 1 answer
2. asked by sam
3. 490 views
<b>The weight of a termite mound (y) in kilograms is measured each month (x) after it was first found. The mound after 1 month
1. 0 answers
2. asked by TP
3. 489 views
hii need a few websites where i can find information that can help me prove that the animals that existed in the past were far
1. 9 answers
2. asked by Markeda
3. 488 views
If there are 700 people in the town, how many people have both cats and dogs? 22% has both cats and dogs.I am having trouble
1. 1 answer
2. asked by deshaun
3. 477 views
I don't know where to begin with these problems would someone please call meFind the median of each set of numbers 14. 1, 4, 9,
1. 0 answers
2. asked by Theresa
3. 476 views
1)The velocity of sound in air is 332 m/s. If the unit of length is km and the unit of time is hour, what is the value of
1. 1 answer
2. asked by Jon
3. 473 views
what is the difference between an business amdinistration degree and an business mangment degree?
1. 1 answer
2. asked by Bryan
3. 466 views
"Ag(s) reacts with none of the 4 (solutions of Ag^+2, Pb^+2, Cu^+2, Zn^+2}. So Ag(s) goes at the bottom of the table for now
1. 2 answers
2. asked by Joseph
3. 466 views
Find an equation of variation where y varies directly as x and inversely as the square of w, and y=24 when x=8 and w=3.
1. 0 answers
2. asked by Amanda
3. 457 views

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