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Questions Asked on February 24, 2010

When the glucose solution described in part A is connected to an unknown solution via a semipermeable membrane, the unknown
1. 10 answers
2. asked by david
3. 7,283 views
Bill, Ernie, Oscar, Sammy and Tony are the five basketball players on the starting team of the varsity squad. Each one is known
1. 4 answers
2. asked by jacob
3. 5,375 views
Equation: Fe2O3 + 2Al ---> 2Fe + Al2O3.How many grams of Fe2O3 react with excess Al to make 475g Fe? Can you show me step by
1. 1 answer
2. asked by Anan
3. 4,343 views
Smooth edged leaves (S) dominant over rough edged leaves (s). Two plants heterozygous for smooth edged leaves are crossed. What
1. 4 answers
2. asked by BECKY
3. 4,341 views
#52. In two or three well-developed paragraphs, list and describe the importance of the four steps in a simple environmental
1. 4 answers
2. asked by y912f
3. 4,298 views
can the following formula to find the sum of the interior angles of a polygon be used on a concave polygon?180(n-2) where n= the
1. 14 answers
2. asked by mike
3. 4,187 views
Write the complete and net ionic equations for the following reactions. Be sure to indicate the states of the reaction products.
1. 2 answers
2. asked by Macey
3. 3,609 views
Water freezes in the crack in this boulder and expands. Over time pieces of the boulder will break off. What type of wathering
1. 2 answers
2. asked by Toni
3. 3,390 views
• Post a 200- to 300-word response to the following: Compare cost control strategies of employer-sponsored health plans, in
1. 7 answers
2. asked by Anonymous
3. 2,739 views
Fe2O3 + 2Al --> 2Fe + Al2O3How many grams of Fe will form when 97.6g Al2O3 form? Please & Thank you
1. 1 answer
2. asked by Ana
3. 2,711 views
The following errors occurred when the above experiment was carried out. How would each affect the calculated molecular mass of
1. 8 answers
2. asked by chuchuchulu
3. 2,638 views
If 20 mL of 0.01 M aqueous HCl is required to neutralize 30 mL of an aqueous solution of NaOH, determine the molarity of the
1. 2 answers
2. asked by Emily
3. 2,560 views
Ten years ago, you started working as a clerk for DMD Medical Supplies. Six months ago, Liz Jakowski, the humanresources
1. 7 answers
2. asked by SASSY
3. 2,504 views
Molecular Mass by Freezing point Depression (Preliminary Lab)The following errors occurred when the above experiment was carried
1. 1 answer
2. asked by chuchuchulu
3. 2,263 views
You are given a jar containing a mixture of three different solid substances. The particles of each substance are larger than
1. 1 answer
2. asked by Haley
3. 2,131 views
A gas storage tank has a volume of 3.5*10^5 m^3 when the temperature is 27 degrees celcius and the pressure is 101 kPa. What is
1. 2 answers
2. asked by Alexandra
3. 2,125 views
A buffer is created by mixing equal concentrations of NH4+ and NH3. Calculate the volume of both solutions needed to create a
1. 3 answers
2. asked by Bodhi
3. 1,679 views
A 53.0 kg boy and his 41.0 kg sister, both wearing roller blades face each other at rest. The girl pushes the boy hard, sending
1. 1 answer
2. asked by Mathieu
3. 1,556 views
A 6.0-kg box is raised a distance of 3.0m from rest by a vertical applied force of 80 N. Find (a) the work done on the box by
1. 1 answer
2. asked by carrie
3. 1,554 views
an airline passanger fell asleep halfway to her destination. When she woke up, the distance remaining was half the distance
1. 2 answers
2. asked by sammy
3. 1,550 views
Is these true or false:-Every Bronsted-Lowry acid is also a Lewis acid. -Conjugate acids of weak bases produce more acidic
1. 4 answers
2. asked by ChemistryStudent2010
3. 1,517 views
In isosceles triangle DEF, DE=DF. Which of the following is true?1) <D is congruent to <E 2) <F is congruent to <E 3) <D is
1. 1 answer
2. asked by Laurie
3. 1,456 views
if the temperature of a 500.0g sample of liquid water is raised to 2.00c how much heat is absorbed by the water? The specific
1. 3 answers
2. asked by Anonymous
3. 1,439 views
Let A(x) be the area of the rectangle inscribed under the curvewith vertices at (-x,0) and (x,0), x > 0. a. Find A(1). b. What
1. 1 answer
2. asked by matt
3. 1,436 views
the area around the great lakes was once covered by thick sheets of ice. Use the principal of isostasy to explain how the
1. 2 answers
2. asked by matt
3. 1,423 views
1.The earth is constantly bombarded by cosmic rays, which are charged particles from outer space. moving vertically Find the
1. 2 answers
2. asked by Sandhya
3. 1,402 views
#54. In two or three well-developed paragraphs, define and list two characteristics of each of the following: coastal wetlands,
1. 2 answers
2. asked by y912f
3. 1,393 views
A rectangular park measuring 35 yards by 24 yards is surrounded by a trail of uniform width. If the area of the park and the
1. 0 answers
2. asked by ReRe
3. 1,302 views
Factor the greatest common factor from the polynomial. Assume any variable exponents represent whole numbers.20x9 - 20x7 - 16x2
1. 2 answers
2. asked by Rema
3. 1,285 views
Which statement about the electric dipole moment is true?u=qd a) A molecule is a strong dipole if the net charge separation
1. 0 answers
2. asked by Alexa
3. 1,273 views
Explain how a teacher can monitor student homeworko Identify a time-efficient way to monitor independent student work (other
1. 5 answers
2. asked by scooby
3. 1,222 views
We learned in lecture that the magnetic force on a charge qmoving with velocity v in a magnetic field ~B has the form F = q~v ×
1. 0 answers
2. asked by Jess
3. 1,199 views
At a certain location on the Earth,the horizontal component of the Earth’s magnetic field is 2.5 ·10−5 T due North. A
1. 1 answer
2. asked by Anonymous
3. 1,194 views
Flying with the wind, a small plane flew 360 miles in 2hours. Against the wind, the plane could fly only 300 miles in the same
1. 1 answer
2. asked by Meghan
3. 1,166 views
You throw a ball straight down from an apartment balcony to the ground below. The ball has an initial velocity of 4.50 m/s,
1. 1 answer
2. asked by Delilah
3. 1,157 views
Can you calculate the work needed to lift a 20.0-N book 2.0m
1. 2 answers
2. asked by Imran
3. 1,144 views
CAN SOMEONE HELP ME WITH WRITING AN EPIC POEM ABOUT A HERO? MY ASSIGNMENT IS DUE MAR. 1. IT HAS TO BE 4 PAGES LONG.
1. 1 answer
2. asked by ANDREW
3. 1,124 views
Is there a difference between an ELL learner and a struggling reader?I say that to a certain degee there is a difference because
1. 0 answers
2. asked by B.B.
3. 1,098 views
How does the English government's attitude toward the Irish during the Irish famine in the late 1840's reflect the motivations
1. 5 answers
2. asked by Chris
3. 1,090 views
What is the (name of the) molecular structure of AlCl3NH3 ?
1. 3 answers
2. asked by Inga
3. 1,049 views
is this statement truechemicals participating in a chemical reaction contain only potential energy?
1. 1 answer
2. asked by Anonymous
3. 1,011 views
what is the adjective in the sentence She brought an apple for snack
1. 3 answers
2. asked by april
3. 1,007 views
You may never live in a big city, but we must all find ways to lower our environmental impact. What can the average citizen do
1. 1 answer
2. asked by amanda
3. 934 views
I have the function f(x)=e^x*sinNx on the interval [0,1] where N is a positive integer. What does it mean describe the graph of
1. 3 answers
2. asked by Paul
3. 934 views
A double-slit interference pattern is created by two narrow slits spaced 0.21 mm apart. The distance between the first and the
1. 0 answers
2. asked by deb
3. 916 views
What is the solubility of calcium iodide (in g per 100 cc of cold water)?
1. 1 answer
2. asked by Jeanna
3. 898 views
Mercury is poured into the open end of a J-shaped glass tube, which is closed at the short end, trapping air in that end. How
1. 1 answer
2. asked by Isabel
3. 889 views
A gas occupies a volume of 140 mL at 35 degrees celcius and 97 kPa. What is the volume of the gas at STP? Please show the work.
1. 1 answer
2. asked by Maria
3. 887 views
Let f be the function defined by f(x) = (x2 + 1)e -x for -4 < x < 4. a. For what value of x does f reach its absolute maximum?
1. 0 answers
2. asked by john
3. 881 views
How much heat is required to change 10 grams of ice at 0 deg. C to steam at 100 deg C?
1. 1 answer
2. asked by Ally
3. 876 views
How much heat is required to change 10 g of ice at 0o deg C to steam at 100 deg. C?
1. 2 answers
2. asked by Mari
3. 876 views
imagine that you are a fish underwater. when you look up to the surface of the water you can see the sky and also the bottom of
1. 1 answer
2. asked by Anonymous
3. 876 views
What is the source of energy driving the hydrolic cycle?a. evaporation of the ocean water b. heat conducted from the earth's
1. 0 answers
2. asked by BECKY
3. 875 views
One mole of oxygen gas is at a pressure of 5.10 atm and a temperature of 32.0°C.(a) If the gas is heated at constant volume
1. 1 answer
2. asked by Anonymous
3. 869 views
what did the baby porcupine say when it backed into a cactus?
1. 1 answer
2. asked by Anonymous
3. 867 views
EF is a median of trapezoid ABCD. If the length of EF is 14x, and the length of CD is 20x, what is the length of AB in terms of
1. 1 answer
2. asked by Anonymous
3. 867 views
Ceckpoint Introduction and conclusion.I am having a problem with writing an introduction for my research paper and a conclusion.
1. 4 answers
2. asked by ana
3. 861 views
Multiply using the rule for the product of the sum and difference of two terms. Assume any variable exponents represent whole
1. 1 answer
2. asked by ReRe
3. 847 views
When the glucose solution described in part A is connected to an unknown solution via a semipermeable membrane, the unknown
1. 2 answers
2. asked by david
3. 839 views
Humid air breaks down electrically when its molecules become ionized. this happend in an electric field |E|=3*10^6 N/C. In that
1. 1 answer
2. asked by Lauren
3. 826 views
Every Bronsted-Lowry acid is also a Lewis acid.Why is this statement false? Thanks
1. 1 answer
2. asked by Hello
3. 816 views
differentiate y=x^2x. show all work
1. 0 answers
2. asked by Anonymous
3. 813 views
How does oxygen production relate to the rate of photosynthesis?
1. 1 answer
2. asked by matt
3. 807 views
1. How has the size and location of big cities changes since the year 1900? 2. Describe the major problems in today's large
1. 1 answer
2. asked by lisa
3. 793 views
A double-slit interference pattern is created by two narrow slits spaced 0.21 mm apart. The distance between the first and the
1. 0 answers
2. asked by deb
3. 790 views
consider the function f(x) = e^x(sinNx) on the interval [0,1] where N is a positive integer.a) Compute the integral from 0 to 1
1. 2 answers
2. asked by anonymous
3. 771 views
The candy shack has 20 pounds of mixed white and dark chocolates worth $7.50 per pound. white chocolates alone sell for $8.00
1. 3 answers
2. asked by Rj Garcia
3. 771 views
Two blocks are connected by a light string passing over a pulley. The inclined surfaces are frictionless, and the effects of the
1. 0 answers
2. asked by Katie
3. 771 views
How many grams of steam at 100 Celsius would be required to raise the temp. of 35.8 g solid benzene, from 5.5 Celsius to 45.0
1. 1 answer
2. asked by pgarcia
3. 763 views
your high school golf team shot rounds of 68, 70, 72, 78, and 84. if par for the course was 71, how many shots was the team over
1. 0 answers
2. asked by brina
3. 762 views
In order to raise the temperature of 5.0 Kg of water from 20 deg. C to 30 deg. C, a 2.0 kg iron bar is heated and then dropped
1. 1 answer
2. asked by Lexie
3. 753 views
What is the molecular structure of the molecule AlCl3?What characteristic is notable about the structure that helps us to
1. 1 answer
2. asked by HonorsChemistryKid
3. 746 views
A coin bank contains only nickels,dimes, and quarters. the value of the 19 coins in the bank is $2.00. There are twice as many
1. 1 answer
2. asked by Jason
3. 742 views
You are in charge of marketing and advertisement at your local art museum. Next month, the museum will be hosting an exhibition
1. 0 answers
2. asked by chelle
3. 741 views
I need help with my annotated bibliography thesis for Maya Angelou!!!!!!!?It is for a research paper. I has to include a
1. 5 answers
2. asked by Heidi
3. 738 views
) Mare is preparing an experiment using 3 cups, one made of paper, one of plastic and one of glass. She plans on pouring 50 ml
1. 1 answer
2. asked by Leah
3. 738 views
Posted by Paul on Friday, February 19, 2010 at 3:57am.I have the function f(x)=e^x*sinNx on the interval [0,1] where N is a
1. 5 answers
2. asked by Paul
3. 731 views
I have to make a list of male characters from action movies, t.v., and video games that I have see recently. -Does this mean
1. 14 answers
2. asked by Sara
3. 730 views
39. Proteins are manufactured from the "blueprints" found on DNA. After they are translated, they are moved through a system of
1. 0 answers
2. asked by mysterychicken
3. 723 views
A car travels at an average speed of 83.2 km/h for 1.00 h and then at an average speed of 42.4 km/h during a second hour. What
1. 2 answers
2. asked by Delilah
3. 712 views
The brakes are applied to a car traveling on a dry, level highway. A typical value for the magnitude of the car's acceleration
1. 0 answers
2. asked by Delilah
3. 706 views
A mobile postive point charge is located between two parallel charged plates of charge densitys +o (top plate) and -o (bottom
1. 3 answers
2. asked by Michael
3. 706 views
"Spreading light...without taking part in the affairs of the world...seeing as a trap...all expantion into Africa or the
1. 1 answer
2. asked by Jenn
3. 704 views
What is the relationship of Information resources to the business user? Provide at least one example. Can somebody please
1. 3 answers
2. asked by unsure
3. 698 views
Rewrite the expression in the simplest form without parentheses:6(18 – y)
1. 5 answers
2. asked by hannah
3. 697 views
What is the molecular structure of the molecule AlCl3?What characteristic is notable about the structure that helps us to
1. 0 answers
2. asked by kiki
3. 695 views
Flying with the wind, a small plane flew 360 miles in 2hours. Against the wind, the plane could fly only 300 miles in the same
1. 1 answer
2. asked by Meghan
3. 694 views
A jar is half full of vinegar and another jar twice its size is one quarter full of vinegar. Both jars are then filled with
1. 2 answers
2. asked by Anonymous
3. 691 views
is this rightwhen a fuel is burned some of its chemical potential energy is lost as heat. and To convert kilojoules to joules
1. 1 answer
2. asked by Anonymous
3. 687 views
Consider a user types a document with a speed of 100 wordsper minute. Assume that an average word consists of 5 letters and ends
1. 0 answers
2. asked by Priya
3. 676 views
An electron is accelerated horizontally from rest in a television picture tube by a potential differenceof 1.00 × 104 V. (a)
1. 0 answers
2. asked by Dave
3. 669 views
An aqueous solution contains two solutes, A and B. A is soluble in hexane, B is not. Hexane is liquid at room temperature and
1. 3 answers
2. asked by Jose-Ann
3. 664 views
A coin bank contains only nickels,dimes, and quarters. the value of the 19 coins in the bank is $2.00. There are twice as many
1. 0 answers
2. asked by Jason
3. 664 views
i am having a minor difficultyi've been stuck for over an hour and don't know what to do i don't know is this right ? = "+" or
1. 1 answer
2. asked by larry
3. 663 views
A monopolistically competitive industry has the following structual characteristics:(1) a large number of firms,(2) no barriers
1. 0 answers
2. asked by ronie
3. 660 views
How mucyh heat is given up when 20 g of steam at 100 deg C is condensensed and cooled to 20 deg. C?
1. 1 answer
2. asked by Ally
3. 659 views
CAN SOMEBODY PLEASE HELP ME WRITE THE REST OF THIS ESSAY. I DON'T KNOW WHAT ELSE TO WRITE AND MY ESSAY IS DUE TOMMOROW. BY THE
1. 3 answers
2. asked by Anonymous
3. 653 views
Factor the greatest common factor from the polynomial. Assume any variable exponents represent whole numbers.12xy + 20xz - 8xw
1. 2 answers
2. asked by Rema
3. 652 views
Which measuring device would you use if you needed to know the volume of a liquid very precisely?Why?
1. 1 answer
2. asked by pasely
3. 652 views
I was just curious, we're starting to read The Wave by Todd Strasser, and I was wondering if anyone has read it and if they have
1. 6 answers
2. asked by Ashley
3. 650 views

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