Archives
2009
September

Questions Asked on September 28, 2009

Cars A and B are racing each other along a straight path in following manner: Car A has head start and is a distance dA beyond
1. 4 answers
2. asked by help
3. 11,576 views
Methane, CH4 burns in oxygen gas to form carbon dioxide and water. How many moles of carbon dioxide will be formed from 8.0g of
1. 3 answers
2. asked by Denmark
3. 8,618 views
Two balloons are filled with an equal volume of air. One is put in the refrigerator for one hour, while the other is heated in a
1. 10 answers
2. asked by Nathan
3. 8,600 views
Many metals react with oxygen gas to form the metal oxide. For example calcium reacts:2Ca(s) + O2(g)--> 2CaO(s) Calculate the
1. 1 answer
2. asked by Courtney
3. 6,120 views
Two successive reactions, D-->E and E-->F, have yields of 48% and 73%, respectively, What is the overall percent yield for
1. 4 answers
2. asked by Jamie
3. 4,820 views
A small metal cylinder rests on a circular turntable that is rotating at a constant speed.The small metal cylinder has a mass of
1. 3 answers
2. asked by Tiffany
3. 4,502 views
Calculate the mass of each product formed when 43.82g of diborane (B2H6) reacts with excess water:B2H6(g) + H2O(l)--> H3BO3(s) +
1. 4 answers
2. asked by TeeJay
3. 4,487 views
When 0.100 mol of carbon is burned in a close vessel with 8.00g of oxygen, how many grams of carbon dioxide can form? Which
1. 1 answer
2. asked by Jasmine
3. 4,298 views
Acetone, C3H6O, is the main ingredient of nail polish remover. A solution is made up by adding 35.0mL of acetone(d=0.790g/mL) to
1. 4 answers
2. asked by Mandy
3. 3,694 views
Write in standard form.thirty-six-thousandths------
1. 3 answers
2. asked by queeneka
3. 3,545 views
Potassium nitrate decomposes on heating, producing potassium oxide and gaseous nitrogen and oxygen:4KNO3(s)--> 2K2O(s) + 2N2(g)
1. 3 answers
2. asked by Telicia
3. 3,089 views
What amount (in moles) of FeS2(s) are required to produced 64g of SO2(g) according to the following equation?4FeS2(s) +
1. 2 answers
2. asked by mary.
3. 3,040 views
A scientist wants to make a solution of tribasic sodium phosphate, Na_3PO_4, for a laboratory experiment. How many grams of
1. 3 answers
2. asked by Cory
3. 2,693 views
Eugenol, the active ingredient in cloves, has a formula of C10H12O2. What is the boiling point of a solution containing 1.14g of
1. 1 answer
2. asked by Mandy
3. 2,541 views
Lithium hydroxide reacts with carbon dioxide as follow.2LiOH + CO2________ Li2CO3 + H2O What mass (in grams) of Lithium
1. 2 answers
2. asked by Richard
3. 2,138 views
What amount of H2(g) is produced when 12g of magnesium reacts completely with dilute HCl(aq)Mg(s) + 2HCl(aq)________MgCl2(aq) +
1. 4 answers
2. asked by Ochaya
3. 1,973 views
How is the air similar to a sponge?
1. 7 answers
2. asked by Nathan
3. 1,960 views
Use linear approximation, i.e. the tangent line, to approximate (the 3 is inside the v part if you know what I mean, it's not 3
1. 3 answers
2. asked by Z32
3. 1,912 views
You have a 22L cylinder of helium at a pressure of 150atm and a temperature of 31C. How many ballons can you fill, each with a
1. 4 answers
2. asked by Eric
3. 1,850 views
SAT math scores approx. follow a normal distribution, with mean 500 and standard deviation 100. What % of students should have
1. 1 answer
2. asked by CM
3. 1,766 views
CuCO3 + O2 -> CuO + CO2hydrogen peroxide + manganese dioxide -> hydrogen + oxygen copper (II) sulfate pentahydrate + oxygen ->
1. 2 answers
2. asked by Lauren
3. 1,598 views
why is barium more reactive than magnesium?
1. 1 answer
2. asked by mike
3. 1,537 views
Write the balanced chemical equation for each reaction:K2MnO4(aq)+H2SO4(aq)+NaHSO3(aq)= ? K2MnO4(aq)+NaOH(aq)+NaHSO3(aq)= ?
1. 5 answers
2. asked by izzy
3. 1,452 views
Plane A is 40 mi south and 100 mi east of Plane B. Plane A is flying 2 miles west for every mile it flies north, while Plane B
1. 2 answers
2. asked by newt
3. 1,392 views
Write a 700- to 1,050-paper responding to the following: You have recently been employed by a small local hospital as an
1. 1 answer
2. asked by josh
3. 1,341 views
What force is must a jet's boat engine apply to accelerate the boat from 50 km/h to 100 km/h in 6.0 s? The mass of the boat is
1. 1 answer
2. asked by Anonymous
3. 1,294 views
The height of adult women in the U.S. is normally distributed, with a mean height of 64 inches and a standard deviation of 3
1. 1 answer
2. asked by CM
3. 1,271 views
A commercial freight carrier is flying at a constant speed of 400 mi/hand is traveling 4 miles east for every 3 miles north. A
1. 1 answer
2. asked by newt
3. 1,229 views
A 28.0kg block is connected to an empty 1.80kg bucket by a cord running over a frictionless pulley. The coefficient of static
1. 1 answer
2. asked by Brittany
3. 1,228 views
the perimeter of a rectangle is 224 incles. the length exceeds the width by 64 inces. find the length and the width.the length
1. 3 answers
2. asked by spirit73
3. 1,196 views
HISTORY TESTYou take a history test that has 100 regular points and 8 bonus points. You get a score of 91, which includes 4
1. 2 answers
2. asked by valeria
3. 1,196 views
Calculate each of the following quantities:(a) Grams of solute in 185.8 mL of 0.267 M calcium acetate 7.85g Ca(C2H3O2)2 (b)
1. 1 answer
2. asked by Emily
3. 1,177 views
If your MP100 is set to sample at 100 sps, what is the maximum frequency that can be detected in the analog signal?If the peak
1. 4 answers
2. asked by Alex
3. 1,165 views
1. Plane A is 40 mi south and 100 mi east of Plane B. Plane A is flying 2 miles west for every mile it flies north, while Plane
1. 1 answer
2. asked by newt
3. 1,145 views
A small box is held in place against a rough vertical wall by someone pushing on it with a force directed upward at 28degrees
1. 1 answer
2. asked by Leah
3. 1,142 views
what is heterotrophic Hypothesis?please explain well that i can understand because i am doing a research paper on it and i have
1. 0 answers
2. asked by Sandy
3. 1,137 views
I have to bring in a newsworthy current event article from the Kamloops Daily News or the Freepaper.this article can not be
1. 4 answers
2. asked by Austin
3. 1,136 views
Can someone help me translate these into English please?unas millas ingleseas y cuardradas de heirba lujosa and... Esta es una
1. 4 answers
2. asked by Larry
3. 1,065 views
A light bulb, after it has reached its operation temperature, is connected across a potential difference of 120V while 0.5A of
1. 2 answers
2. asked by joh
3. 1,060 views
Has anybody read Animal Farm?What animal hides during the Battle of the Cowshed?? I can choose from Mollie,Jessie,Clover,or
1. 0 answers
2. asked by Karen
3. 1,043 views
can you help me with this question?According to the clockmaker analogy did Voltaire believe that God was present in the world?
1. 1 answer
2. asked by Katie
3. 1,030 views
If limb lead III has tiny waves (i.e. nearly a flat line), while leads I and II have large waves, this is because:a.the subject
1. 1 answer
2. asked by Alex
3. 1,028 views
if sarah gets enough money to go to a movie, jenny will go. if jenny goes bob will go. if bob goes jake will go.only two people
1. 1 answer
2. asked by Anonymous
3. 1,007 views
Differentiate this.x^2 - sqrt(3)xy + 2y^2 = 5 Can someone show me?
1. 1 answer
2. asked by Morgan
3. 1,006 views
2. How has human settlement affected the natural vegetation of Western Europe?a. People have carefully protected all of the
1. 2 answers
2. asked by mysterychicken
3. 1,003 views
I don't really understand what it means when it says Vavenby wants time for ''mines'' before school closure.
1. 1 answer
2. asked by Austin
3. 1,000 views
what catorgorie does commissions fall in:A)income statement B)statement of changes in owner equity C)balance sheet i think a
1. 1 answer
2. asked by laura
3. 996 views
A person standing at the edge of a seaside cliff kicks a stone over the edge with a speed of vi = 11 m/s. The cliff is h = 47 m
1. 1 answer
2. asked by steph
3. 996 views
Find the linearization of f(x)= sqrtx at x=25 and use the linearization to approximate sqrt25.2This is my math: 5+ 1/10 *
1. 2 answers
2. asked by Z32
3. 984 views
I also need help with (x)/(x+4)+(4)/(x+4)+2=0. My book says there is no solution, but I got one. I got -6 equals x (the x+4's
1. 1 answer
2. asked by Jaymie
3. 979 views
triangle AOB is a right angled triangle....(1.5, 2)is the midpoint co-ordinate of AB the co-ordinate of B is (2.5. 0)...Find the
1. 1 answer
2. asked by Maths URGENT
3. 975 views
Are we allowed to post my essay here for proofreading? why is only the first line showing up?Individual Opportunity: Myth or
1. 5 answers
2. asked by Kuromi
3. 962 views
Acetone, C3H6O, is the main ingredient of nail polish remover. A solution is made up by adding 35.0mL of acetone(d=0.790g/mL) to
1. 1 answer
2. asked by Mandy
3. 961 views
A car traveling at 69 km/h hits a bridge abutment. A passenger in the car moves forward a distance of 59 cm (with respect to the
1. 2 answers
2. asked by John
3. 932 views
Acetone, C3H6O, is the main ingredient of nail polish remover. A solution is made up by adding 35.0mL of acetone(d=0.790g/mL) to
1. 1 answer
2. asked by Mandy
3. 930 views
The height of adult women in the U.S. is normally distributed, with a mean height of 64 inches and a standard deviation of 3
1. 1 answer
2. asked by CM
3. 922 views
Why is baseball fun?
1. 1 answer
2. asked by Troy
3. 916 views
how can spectra be used in chemical analysis?
1. 2 answers
2. asked by jessica
3. 894 views
Why does the inequality sign change when both sides aremultiplied or divided by a negative number? Does this happen with
1. 1 answer
2. asked by Anonymous
3. 890 views
Eugenol, the active ingredient in cloves, has a formula of C10H12O2. What is the boiling point of a solution containing 1.14g of
1. 1 answer
2. asked by Mandy
3. 886 views
I need help working the problems, I don't know how I got the right answersCalculate each of the following quantities: (a) Grams
1. 5 answers
2. asked by Emily
3. 882 views
You have a 22L cylinder of helium at a pressure of 150atm and a temperature of 31C. How many ballons can you fill, each with a
1. 1 answer
2. asked by Eric
3. 874 views
what causes the different physical properties between HCl and NaCl
1. 2 answers
2. asked by Adam
3. 846 views
Write a 700- to 900-word paper addressing the following aspects of the Perfection Era.Assess the accomplishments made in the
1. 1 answer
2. asked by Sueann
3. 822 views
How do you know if a value is a solution for an inequality? How is this different from determining if a value is a solution to
1. 1 answer
2. asked by Kellie
3. 816 views
When navigating their crafts, ship captains and airplane pilots can often be seen drawing lines on a large map?A cruise ship is
1. 1 answer
2. asked by newt
3. 815 views
What similarities and differences do you see between functions and linear equations studied in Ch. 3? Are all linear equations
1. 1 answer
2. asked by Toni
3. 801 views
Welcome, you are invited to Sue, James and Jason's party.Bienvenido, tu eres (invited)a la fiesta de Sue, James y Jason. Can
1. 4 answers
2. asked by Larry
3. 783 views
PRIME FACTORIZATION OF 15 USING EXPONENTS
1. 2 answers
2. asked by NINA
3. 760 views
Plane A is 40 mi south and 100 mi east of Plane B. Plane A is flying 2 miles west for every mile it flies north, while Plane B
1. 1 answer
2. asked by newt
3. 750 views
For dessert we will have chocolate cake, ice cream and pieHow would you translate this into Spanish? I'm having trouble with "we
1. 5 answers
2. asked by Larry
3. 748 views
When navigating their crafts, ship captains and airplane pilots can often be seen drawing lines on a large map?A cruise ship is
1. 1 answer
2. asked by newt
3. 737 views
I have to fill in the blanks of these questions with the elements H (hydrogen), Co (cobalt), Ga (gallium), and O (oxygen), but
1. 2 answers
2. asked by Emily (different from one before me)
3. 735 views
Unlike heads of executive departments, White House staff members are not required to receive congressional approval. What are
1. 5 answers
2. asked by Anonymous
3. 732 views
Before investigating the scene, the technician must dilute the luminol solution to a concentration of 4.00×10−2 . The diluted
1. 2 answers
2. asked by STEVE
3. 726 views
A ball is thrown upward off the top of a 30-meter high building. 10 meters below the top of the roof, is the top of a window,
1. 1 answer
2. asked by Dreskillz89
3. 725 views
Are there any tricks for remembering solubility rules? I am having a hard time remembering which compounds are soluble and which
1. 1 answer
2. asked by Katie
3. 709 views
A class elects two officers, a president and a secretary/treasurer, from its 12 members. How many different ways can these two
1. 2 answers
2. asked by thomas
3. 708 views
belle bought packages of beads for her project.ben bought twice as many packages as belle.micalla bought three times as many
1. 3 answers
2. asked by angela
3. 693 views
I'm having a lot of trouble in this class, and tonight we have to record differences and similarities of the Ummayad and the
1. 1 answer
2. asked by Ashley
3. 689 views
· Post a 200- to 300-word response to the following: Compare cost control strategies of employer-sponsored health plans, in
1. 3 answers
2. asked by Anonymous
3. 686 views
snookers lumber can convert logs into either lumber of plywood. in a given day, the mill turns out three times as many units of
1. 2 answers
2. asked by spirit73
3. 680 views
When navigating their crafts, ship captains and airplane pilots can often be seen drawing lines on a large map?A cruise ship is
1. 1 answer
2. asked by newt
3. 678 views
Many of today’s antibacterial drugs work by interfering with the growth of cell walls, why do these drugs tend to have little
1. 1 answer
2. asked by chrissy
3. 678 views
a student makes a $10.25 purchase at the bookstore with $20 bill. The store has no bills and gives the change in quarters and
1. 1 answer
2. asked by Need Help
3. 674 views
You're likely to encounter formal service in all of the following settings except which one?
1. 2 answers
2. asked by Anonymous
3. 673 views
A person jumps from a window 57 meters high and is caught in a firefighter's net which stretches 0.6 meter. To the nearest tenth
1. 2 answers
2. asked by Trevor
3. 665 views
Can someone please check my work?Write a paragraph describing your party. La fiesta está en una grande mansión. Tiene seis
1. 1 answer
2. asked by Larry
3. 664 views
the functions f and gare defined byf(x)=2/(x+1), x>0 g(x)=1-x^2, xER a)find value of fg(x)giving your answer in the simplest
1. 1 answer
2. asked by ???
3. 661 views
as the title of a song, which is correct;"I've Learned From You" "I've Learned from you" "I've Learned From you" "I've Leared
1. 1 answer
2. asked by Alyssa
3. 661 views
this is a question for a lab experiment...in the lab we got 2 empty vials and were supposed "eyeball" 1.0g of NaCl into each of
1. 5 answers
2. asked by Jen
3. 660 views
A syringe with a movable piston, contains 0.057g of carbon dioxide gas at 23.5C. If the pressure in the syringe was 953mmHg,
1. 1 answer
2. asked by Mandy
3. 659 views
Different conformers of C3H7Cl?I know that there are different constitutional isomers. But, Im not sure about the
1. 1 answer
2. asked by Sarah
3. 655 views
Explain what the good blockeade-runners carried as cargo. explain it as if you were a blockade runnerand ohh! any blockade
1. 1 answer
2. asked by Brannico
3. 655 views
Find the equation of the circle when the center is at the origin and the radius is 6.Thanks!
1. 3 answers
2. asked by Bree
3. 648 views
I have to write an essay about if I think Columbus Day should be celebrated or not. I have decided to take the approach talking
1. 1 answer
2. asked by Brianne
3. 643 views
All houses in LA pay for weekly trash service. I pay $45 per quarter to have trash removed from my house once a week. My
1. 3 answers
2. asked by A-tan
3. 638 views
why does the inequality sign change when both sides are multiplied or dived by a negative number?Does this happen with
1. 0 answers
2. asked by Anonymous 2
3. 634 views
A researcher interested in relationships developed a questionnaire that measures the degree of affection adult men feel for
1. 1 answer
2. asked by Vixen
3. 631 views
write the prime factorization of 15 using exponents.
1. 5 answers
2. asked by NINA
3. 629 views

Back to September 2009

Ask a New Question

Archives
Contact Us
Newest
Privacy Policy
Terms of Use
© 2025