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Questions Asked on November 28, 2010

Rank the relative nucleophilicity of the indicated species in ethanol.CH3COOH CH3OH CH3COO- CH3S- CH3O- THANK YOU!
1. 2 answers
2. asked by George
3. 7,167 views
A plane that carries mail makes a round trip each day from Chicago to New York. It makes 3 intermediate stops on the way to New
1. 8 answers
2. asked by kara
3. 6,925 views
a horizontal force of 8.0 newtons is used to pull a 20.-newton wooden box moving toward the right along a horizantal, wood
1. 2 answers
2. asked by mike
3. 5,059 views
assume a pulley has a radius of 12.96 cm. If it takes 18 seconds for 56 cm of belt to go around the pulley, find the angular
1. 1 answer
2. asked by SK
3. 3,947 views
Marlon has 4 cards, Jake has 4 cards, and Sam has 3 cards. Can you write a multiplication sentence to find how many cards they
1. 17 answers
2. asked by alejandra
3. 3,914 views
does NF3 follow the octet rule
1. 2 answers
2. asked by olivia
3. 3,891 views
What are the magnitude and direction of the electric field at a point midway between a -7.0 µC and a +6.0 µC charge 2.5 cm
1. 2 answers
2. asked by Anonymous
3. 3,746 views
A committee of students and teachers is being formed to study the issue of student parking privileges. Fifteen staff members and
1. 2 answers
2. asked by kitkat
3. 3,427 views
find the unit rate for number of parts manufactured per hour if 1630 parts are made in 6 hours. round to the nearest integer.
1. 2 answers
2. asked by Amber
3. 3,292 views
In a solution of copper(II) chloride, the following equilibrium exists:CuCl42-(aq) (dark green) + 4H2O(l) <-->
1. 1 answer
2. asked by Mary
3. 3,269 views
In Lisa's first-year college program she must take nine courses including at least two science courses. If there are five
1. 3 answers
2. asked by kitkat
3. 3,215 views
Seven year-old Sarah has nine crayons; three blue, one red, two green and three yellow.a) In how many ways can she line up the
1. 1 answer
2. asked by kitkat
3. 3,085 views
A ship leaves its homeport and sails on a bearing of N28degrees10'E. Another ship leaves the same port at the same time and
1. 3 answers
2. asked by SK
3. 3,015 views
Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies.(A) 103.1 MHz (typical
1. 2 answers
2. asked by lorah hilpolep
3. 2,926 views
I need your help to paraphrase the description of the Merchant in Chaucer's Prologue to the Canterbury Tales. I'll include the
1. 2 answers
2. asked by Franco
3. 2,868 views
An electron in a hydrogen atom relaxes to the n= 4 level, emitting light of 138 THz.What is the value of n for the level in
1. 2 answers
2. asked by lorah hilpolep
3. 2,639 views
A coin with a diameter of 3.30 cm is dropped on edge onto a horizontal surface. The coin starts out with an initial angular
1. 7 answers
2. asked by ruby
3. 2,557 views
Describe the topography of the interior plains as you would see it if you were driving across the region from west to east to
1. 2 answers
2. asked by john
3. 2,554 views
A bar of aluminum (bar A) is in thermal contact with a bar of iron (bar B) of the same length and area. One end of the compound
1. 4 answers
2. asked by Chelsea
3. 2,445 views
"Happiness belongs to the self-sufficient." - AristotleWhat does it mean? I don't get it...
1. 1 answer
2. asked by Jessica
3. 2,337 views
A rock weighs 140 N in air and has a volume of 0.00273 m3. What is its apparent weight when sub-merged in water? The
1. 4 answers
2. asked by Laura
3. 2,299 views
if metal A is placed in an ionic solution containing metal B ions and no reaction occurs, then metal B is most likely:A.) a
1. 3 answers
2. asked by Lauren
3. 2,024 views
Calculate the percent yield of eugenol obtained considering the fact that clove oil is approximately 16-19 % clove by weight of
1. 1 answer
2. asked by Jason
3. 1,946 views
One proposed design for a Mars rover uses a methane gas fuel cell as its power supply. The methane fuel can be made on Mars
1. 2 answers
2. asked by Mary
3. 1,942 views
When a 55 N stone is attached to a springscale and is submerged in water, the spring scale reads 30 N. What is the density of
1. 2 answers
2. asked by Nicole
3. 1,850 views
The tub of a washer goes into its spin-dry cycle, starting from rest and reaching an angular speed of 6.0 rev/s in 12.0 s. At
1. 1 answer
2. asked by emily
3. 1,770 views
one way to resize a ring is to fill a bar into the ring.suppose a ring that is 20 mm in diameter has to be resized to fit a
1. 1 answer
2. asked by Diala
3. 1,739 views
1. a.) Find an equation for the line perpendicular to the tangent curve y=x^3 - 9x + 5 at the point (3,5)[* for a. the answer
1. 1 answer
2. asked by Eliza
3. 1,672 views
What is the role of the state governments under the articles of confederation?
1. 4 answers
2. asked by kip
3. 1,664 views
From a deck of 52 cards, how many different four-card hands could be dealt which include one card from each suit?
1. 2 answers
2. asked by kitkat
3. 1,661 views
The members of City Council are to vote yes or no on each of seven issues. In marking a ballot, each councilor has the option of
1. 3 answers
2. asked by kitkat
3. 1,619 views
A train has a mass of 5.22 multiplied by 106 kg and is moving at 82.0 km/h. The engineer applies the brakes, resulting in a net
1. 1 answer
2. asked by john
3. 1,618 views
From 85 Records at D.S. Collegiate, the following data was collected: 12 studied Sociology, Economics and Accounting, 27 studied
1. 3 answers
2. asked by kitkat
3. 1,594 views
what is the cation and anion of Na3PO4?thanks
1. 1 answer
2. asked by rebekah
3. 1,583 views
The angle of depression from the top of the building to a point on the ground is 29degrees30', the point of the ground is 36
1. 1 answer
2. asked by SK
3. 1,526 views
Two spheres A and B, where A has twice the mass of B, are projected at the same horizontal velocity off the edge of two
1. 1 answer
2. asked by Tracey
3. 1,519 views
A 1220 N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A W = 1990 N crate
1. 2 answers
2. asked by student
3. 1,470 views
which one is an important property of fiber cable?1)noise 2)reflection 3)interference 4)attenuation
1. 1 answer
2. asked by sweetie
3. 1,332 views
How does electron configuration of ions derived from representative elements give them stability?
1. 2 answers
2. asked by silly
3. 1,267 views
A centrifuge in a medical laboratory rotates at an angular speed of 3500 rev/min. When switched off, it rotates through 54.0
1. 3 answers
2. asked by angie
3. 1,259 views
Find an article that deals with business impact on the environment.and i want to know what does business impact on the
1. 1 answer
2. asked by mike
3. 1,256 views
If this is what they are saying in Spanish- "Yo me llamo Joey.“ Vivo en Chicago pero soy de Springfield. “ How would I
1. 2 answers
2. asked by Andrea
3. 1,252 views
for the sequence:1,6,11,16,...,the 50th term would be:
1. 1 answer
2. asked by clinton
3. 1,249 views
An arithmetic progression has 5 terms that have a sum of 200. The sum of the last three terms added to 6 times the sum of the
1. 1 answer
2. asked by mychelle
3. 1,203 views
How many milliliters of 0.710 M HCl are required to react with 47.80 grams of CaCO3 ?Given the balanced reaction equation: 6
1. 1 answer
2. asked by Lena
3. 1,203 views
How did the Knights of Labor and the AFL differ from earlier unions?
1. 2 answers
2. asked by Tesha
3. 1,198 views
Use the double angle formula to verify the identity cotxsin2x=1+cos2x
1. 0 answers
2. asked by SK
3. 1,189 views
Complete and balance each of the following equations. If no reaction occurs, please enter NR in each answer box. (Type your
1. 6 answers
2. asked by rebekah
3. 1,165 views
How does a firm maximize their total revenue?What happens when a firm raises its price in a market in which the price is in the
1. 0 answers
2. asked by yt
3. 1,151 views
A battalion 20 miles long advances 20 miles.During this time, a messenger on a horse travels from the rear of the battalion to
1. 1 answer
2. asked by Suzy
3. 1,129 views
What is the plot summary of Edgar Allan Poe's "Cask of Amontillado"?With the introduction, rising action, climax,falling action
1. 0 answers
2. asked by klarmaesen
3. 1,125 views
How much heat is gained (in Joules) by the water where a chemical reaction takes place in 100 mL aqueous solution and has a
1. 1 answer
2. asked by Anonymous
3. 1,124 views
a trapezoid has one equal base to its height, x, and the other base is twice as long.write the expression for the area of the
1. 2 answers
2. asked by mychelle
3. 1,106 views
To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes the amount of nicotine
1. 2 answers
2. asked by Roger
3. 1,099 views
Four jelly beans are selected, one at a time from a bowl containing 6 black, 6 red and 6 green jelly beans. Let x represent the
1. 0 answers
2. asked by kelly
3. 1,084 views
Suppose that a market research company finds that at a price of p=$25, they would sell x= 53 tiles each month. If they lower the
1. 1 answer
2. asked by Anonymous
3. 1,077 views
LetAB and CD be two lines intersecting at point O. Let OP be the bisector of angle AOC, OT the bisector of angle POB, and OR the
1. 0 answers
2. asked by Suzy
3. 1,061 views
Can you please check my answer?An American football field is a rectangle 120 yards long (including both end zones) and 53 1/3
1. 12 answers
2. asked by Elizabeth
3. 1,057 views
find unit rate 40 textbooks weigh 120 pounds
1. 2 answers
2. asked by steve
3. 1,032 views
6x-3y=4 find dy/dx using differentiating implicity
1. 1 answer
2. asked by Ivan
3. 1,015 views
you work in a physcians office performing billing. You notice that guidelines haven't been followed accurately in completing the
1. 2 answers
2. asked by kim
3. 1,007 views
The path of a cliff diver as he dives into a lake is given by the equationy= -(x-10)^2+75, where y meters is the divers height
1. 1 answer
2. asked by Andy
3. 985 views
A regular polygon has interior angles of 120 degrees. How many siddes does the polygon have?
1. 1 answer
2. asked by mychelle
3. 979 views
Can anyone help me find other resources to the graded project for Penn Foster? I have the AMA, and the foster books. Anything
1. 6 answers
2. asked by Shannon
3. 967 views
x^2/3+y^2/3=5 find dy/dx using differentiating implicity
1. 0 answers
2. asked by Ivan
3. 939 views
A plane flies 1.3 hr at 100mph on a bearing of N40degreesE. It then turns and flies 1.5hr at the same speed on a bearing of
1. 1 answer
2. asked by SK
3. 931 views
The path of a cliff diver as he dives into a lake is given by the equationy= -(x-10)^2+75, where y meters is the divers height
1. 2 answers
2. asked by Andy
3. 914 views
Today a new Ford costs $24,000 in 1970 it cost $6,000 what is the price relative?
1. 1 answer
2. asked by Mare
3. 911 views
Two cards are drawn without replacement from an ordinary deck of 52 cards. What is the probability that the second card is a
1. 1 answer
2. asked by m
3. 903 views
$7.80/hour = ______ cents/minute?
1. 2 answers
2. asked by alexis
3. 901 views
Here is my essay:All About The Greek Wars War is a devastating human activity, one that hurts populations, destroys property,
1. 4 answers
2. asked by Allyson
3. 897 views
find the area the region bounded by the graphs of the given equation y=81x,y=x^5,x=0,x=3
1. 1 answer
2. asked by Raven
3. 854 views
Draw a model of a solution in which water (h2o) is the solvent and carbon dioxide gas (co2) is the solute?
1. 0 answers
2. asked by Jasmine
3. 834 views
Two cards are drawn without replacement from a deck of 52 cards. What is the probability that both are tens, if the first card
1. 2 answers
2. asked by m
3. 834 views
A woman who weighs 4.33 X10^2 N is leaning against a smooth vertical wall, as the drawing shows.The height of the wall from her
1. 1 answer
2. asked by don
3. 819 views
a graph of melting point against relative atomic mass for the alkali metals on the same graph, a plot of the boiling points with
1. 1 answer
2. asked by ad
3. 818 views
A healthy adult exhales about 5.0*10 exponent 2 ml, of a gaseous mixture with each breath. calculate the number of molecules
1. 1 answer
2. asked by silly
3. 798 views
1. Which learning technique is frequently used in the expository model of teaching?A. Deductive thinking C. Discovery learning
1. 2 answers
2. asked by I. Kan
3. 795 views
h(t) 0.6cos(2t) + 08 sin(t)h'(t) = v(t) = -1.2sin(2t) + 0.8cos(t) find the vertical displacement when the velocity is 0.8m/s how
1. 1 answer
2. asked by Farah
3. 789 views
what is the concentration of the chloride ion when enough water is added to 12 grams of sodium chloride to make 4.0 Liters if
1. 1 answer
2. asked by Annmarie
3. 789 views
a car is driving at a speed of 60 mi/h. What is the speed of the car in feet per minute?
1. 2 answers
2. asked by ty
3. 788 views
In order to maximize profits or minimize losses, a competitive firm will produce at the point where MC = MR. Do you agree or
1. 0 answers
2. asked by mary
3. 776 views
In Hydration of 2-Ethyl-1-Butene which is the major product and which is the minor product? possible products are
1. 0 answers
2. asked by Mandy
3. 775 views
there are 24 hours in a day and scientists tell us that we should sleep for 3/8 of the day.How much time should we spend
1. 2 answers
2. asked by jessie
3. 766 views
this isnt exactly a chemistry question, but i am doing chemistry homework with my calculator.and i want to know if someone can
1. 1 answer
2. asked by jessie
3. 759 views
in Synthesis of para-Methylacetanilide What was the purpose of the sodium acetate solution
1. 0 answers
2. asked by Mandy
3. 757 views
Hi. I am conducting a science experiment to present to a class. Details of experiment below.Materials: 1 can of non-diet soda 1
1. 1 answer
2. asked by Guy
3. 756 views
Can you look over these to see if they are right?1. The first step to planning a child care center is to A. develop your program
1. 8 answers
2. asked by Doris
3. 755 views
Ni+4CO=NI(CO)4this reaction separates nickel from other solid impurities.Starting with 86.4g NI,calculte the pressure of NI(CO)4
1. 1 answer
2. asked by silly
3. 751 views
A 20-lb weight is hung on an 18-in. spring stretching it 6 in. The weight is pulled down 5 in. and 5 lb are added to the weight.
1. 1 answer
2. asked by Viet
3. 747 views
three numbers in the ratio of 7:3:2 have a sum of 228. what is the difference between the smallest and the largest numbers?
1. 2 answers
2. asked by mychelle
3. 737 views
what is P if R =37% and B= 300?
1. 1 answer
2. asked by Dedra
3. 733 views
A petty cash fund of $100 is replenished when the fund contains $5 in cash and receipts for $92. The entry to replenish the fund
1. 1 answer
2. asked by Anonymous
3. 727 views
Is a fixed-price contract a good way to achieve the government’s goal of curbing rising costs? Explain
1. 1 answer
2. asked by om7
3. 714 views
Write a program that allows the user to display a budget as a pie chart. After the user enters numbers into the four text boxes
1. 2 answers
2. asked by Stacy
3. 713 views
I need to find some fallacies in the Martin Luther King Jr. speech.."I Have A Dream" I am happy to join with you today in what
1. 3 answers
2. asked by Nicole
3. 712 views
Ni+4CO=NI(CO)4this reaction separates nickel from other solid impurities.Starting with 86.4g NI,calculte the pressure of NI(CO)4
1. 1 answer
2. asked by silly
3. 710 views
Many programs that prepare teachers and paraprofessionals for their new career require students to create a professional
1. 4 answers
2. asked by Kay-c
3. 704 views
A Swedish study used 1360 patients who had suffered a stroke. The studyrandomly assigned 684 patients to receive a placebo
1. 1 answer
2. asked by Katerina
3. 701 views
balance the formulaCu(OH)2(s) + HNO3(aq) -> H2O(l) + fine the formula here(aq) i did the H20 but i don't know the other formula
1. 2 answers
2. asked by hannah
3. 700 views

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