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Questions Asked on September 16, 2010

The concentration of a benzene solution prepared by mixing 12.0 g C6H6 with 38.0 g CCl4 is__________ molal.
1. 4 answers
2. asked by jessie
3. 10,269 views
Assume that the committee consists of 4 Republicans and 5 Democrats. A subcommittee consisting of 5 people is to be selected.How
1. 1 answer
2. asked by Shawna
3. 6,287 views
A bag of sugar weighs 4.00 lb on Earth. What would it weigh in newtons on the Moon, where the free-fall acceleration is
1. 2 answers
2. asked by Erica
3. 4,016 views
I need help on these questions. My answers have the < by them1. In a typical neuron, sheaths of fatty tissue called _______
1. 7 answers
2. asked by Natasha
3. 3,632 views
1. Money paid to a worker as a reward for good service is called ____________.=a.)Tips b.)Commission c.)Piecework 2. A
1. 11 answers
2. asked by Ariel
3. 3,343 views
assume the half-life of the substance is 31 days and the initialamount is 183.9 grams. (a) Fill in the right hand side of the
1. 2 answers
2. asked by trace
3. 3,142 views
When 4.0 mol of CCl4 reacts with an excess of HF, 3.0 mol of CCl2F2 (Freon) is obtained. The equation for the reaction isCCl4(l)
1. 5 answers
2. asked by Bree
3. 3,077 views
How do I calculate number of moles of K2C2O4 in 20mL of a saturated (300g K2C2O4.H2O per liter) solution....
1. 1 answer
2. asked by Chan
3. 3,031 views
how many electrons are in 3.70 x 10^23 atoms of carbon 13?
1. 3 answers
2. asked by Emily
3. 2,882 views
Richard is driving home to visit his parents. 125 of the trip are on the interstate highway where the speed limit is 65 .
1. 6 answers
2. asked by Danny
3. 2,778 views
Vector A has a magnitude of12.3 units and points due west. Vector B points due north. (a) What is the magnitude of B if A + B
1. 1 answer
2. asked by Anonymous
3. 2,535 views
A sprinter starts from rest in a 100-meter race, accelerates to his full running speed of 10.3 m/s in 1.15 seconds (assume
1. 4 answers
2. asked by Phil
3. 2,450 views
The width of a rectangle is 3 yards less than its length. the perimeter is 130 yards. Find the length and width of the rectangle
1. 2 answers
2. asked by Anonymous
3. 2,371 views
The vapor pressure of pure water at 25 °C is 23.8 torr. Determine the vapor pressure (torr) of waterat 25 °C above a solution
1. 2 answers
2. asked by BEN
3. 2,332 views
Mary needs to row her boat across a 120 m -wide river that is flowing to the east at a speed of 1.4 m/s. Mary can row the boat
1. 1 answer
2. asked by Melissa
3. 2,246 views
1.)Kamman VanMarko Plumbing equipment sales Commission rate: 9 1/2% Annual pay: $17,496 Month's sales: $2,460 What is the
1. 15 answers
2. asked by Ariel
3. 2,213 views
selecting three (3) coins, but assume that there are 5 dimes, 4 nickels, and 2 quarters.In how many possible ways can the
1. 1 answer
2. asked by Shawn
3. 2,145 views
Which statements describe the geographic theme of regions?a. Different types of regions have little or no effect upon each
1. 2 answers
2. asked by Courtney
3. 2,137 views
One M&M candy has a volume of 1.0mL. What volume, in cubic meters, would one mole of M&M candies occupy?2) For this next
1. 2 answers
2. asked by Vova
3. 2,087 views
A 35-kg child starting from rest slides down a water slide with a vertical height of 20 m. What is the child’s speed
1. 1 answer
2. asked by Crista
3. 2,070 views
A truck is stopped at a stoplight. When the light turns green, it accelerates at 2.5 m/s². At the same instant, a car passes
1. 1 answer
2. asked by john
3. 2,061 views
The value of y changes by 3 units when x changes by 0.1 unit. About how fast is y changing?
1. 3 answers
2. asked by Joanna
3. 1,943 views
Using the values for the heat of fusion, specific heat of water, or heat of vaporization, calculate the amount of heat energy in
1. 3 answers
2. asked by Kell
3. 1,755 views
A piano has been pushed to the top of the ramp at the back of a moving van. The workers think it is safe, but as they walk away,
1. 1 answer
2. asked by LP
3. 1,722 views
Q-R = R , SOLVE FOR R
1. 2 answers
2. asked by michael
3. 1,718 views
How do you describe homeostasis?
1. 5 answers
2. asked by Brianna
3. 1,696 views
Assume that the set S has 14 elements.How many subsets of S have at most 4 elements?
1. 3 answers
2. asked by Laura
3. 1,686 views
For each of the following sublevels, give the n and l values and the number of orbitals.(a) 3s (b) 5f (c) 5g
1. 1 answer
2. asked by Jon
3. 1,650 views
Solve the proportionx / 12 = 91 /84
1. 1 answer
2. asked by avery
3. 1,612 views
What part of a map tells the relationship of distance shown on the map to real distance on the Earth? My answer is a map scale.
1. 5 answers
2. asked by Reed
3. 1,596 views
A certain freely falling object requires 1.25 s to travel the last 35.5 m before it hits the ground. From what height above the
1. 1 answer
2. asked by Claudia
3. 1,564 views
Tritium (half-life = 12.3 y) is used to verify the age of expensive brandies. If an old brandy contains only the following
1. 2 answers
2. asked by adrienne
3. 1,544 views
Which four continents touch the Indian Ocean? Africa, Asia, Australia, and Antarctica. Is this correct?
1. 2 answers
2. asked by Reed
3. 1,510 views
What property of addition is shown in the following number sentence? why?
1. 6 answers
2. asked by cody
3. 1,493 views
Assume that there are 6 unfilled roles: 1 male and 5 female. There are 5 men and 7 women, including Ann, auditioning for a part
1. 1 answer
2. asked by amy
3. 1,488 views
Races are timed to an accuracy of 1/1000 of a second. What distance could a person rollerblading at a speed of 8.5 m/s travel in
1. 2 answers
2. asked by Claudia
3. 1,464 views
Explain why the melting points of ionic compounds and molecular compounds differ?The melting points of ionic compounds and
1. 2 answers
2. asked by Anonymous
3. 1,405 views
A 5.0 gm marble is fired vertically upward using a spring gun. The spring must be compressed 8 cm if the marble is to just reach
1. 1 answer
2. asked by sunny
3. 1,403 views
A uniform electric field of magnitude 370 N/C pointing in the positive x-direction acts on an electron, which is initially at
1. 5 answers
2. asked by Max
3. 1,402 views
Assume you have a 50 L barrel full of basketballs and a 50 barrel of tennis balls. If you dump both barrels full of balls into a
1. 2 answers
2. asked by Ana
3. 1,336 views
Are the nuclear fission power plants operating around the world today safe?How does the radiation from a nuclear power plant
1. 1 answer
2. asked by Anonymous
3. 1,328 views
A steam catapult launches a jet aircraft (from rest) from the aircraft carrier John C. Stennis, giving it a speed of 160 mi/h in
1. 1 answer
2. asked by J
3. 1,306 views
the freezing point of ethanol (C2H5OH) is -114.6C. the molal freezing point depression constant for ethanol is 2.00C/m. what is
1. 0 answers
2. asked by lisa
3. 1,275 views
three parachutist have reached terminal velocity at the same distance above the ground below. One at 50kg anoher at 40 kg an
1. 2 answers
2. asked by ayssa
3. 1,247 views
What is the concentration (in molarity) of acetone in a solution prepared by mixing 11 mL of 4.0 M acetone, 16 mL of 0.02 M Br2,
1. 1 answer
2. asked by elizabeth
3. 1,244 views
Choice 1: Payments of $ 2600 now,$3000 a year from now, and $3450 two years from now. Choice 2: Three yearly payments of $ 3000
1. 2 answers
2. asked by nic
3. 1,226 views
A 3.00kg block starts from rest at the top of a 30.0 degree incline and accerlates uniformly down the incline moving 2.00 m in
1. 2 answers
2. asked by Anonymous
3. 1,225 views
Solid magnesium metal reacts with chlorine gas according to the following equation:Mg + Cl2 --> MgCl2 What mass of magnesium
1. 2 answers
2. asked by sarah
3. 1,211 views
ok thanksnow how does my introduction looks? In the short story Trifles by Susan Glaspell, describes a wife who slowly loses her
1. 1 answer
2. asked by terri
3. 1,200 views
an airplane flew a distance of 650 km at an averange speed of 300km/h.how much time did the flight take?
1. 8 answers
2. asked by lola
3. 1,198 views
What property of addition is shown by 5+2=2+5Associative Distributive commutative or Identity
1. 3 answers
2. asked by cody
3. 1,168 views
In college softball, the distance from the pitcher's mound to the batter is 43 feet. If the ball leaves the bat at 90 , how much
1. 2 answers
2. asked by Danny
3. 1,155 views
A 1100 kg car is moving toward the north along a straight road at a speed of 20.0 m/s. The driver applies the brakes and the car
1. 1 answer
2. asked by Phil
3. 1,150 views
A vehicle uses 1 tablespoon of gasoline to drive 125 yards. How many miles can the vehicle travel per gallon? Round your answer
1. 2 answers
2. asked by David
3. 1,139 views
I am writing a paper on the book The Great Gatsby by F. Scott Fitzgerald and my thesis is "In the Great Gatsby, F. Scott
1. 2 answers
2. asked by Amanda
3. 1,129 views
A block of aluminum with a volume of 96.6 cm3 absorbs 66.6 J of heat. If its initial temperature was 32.5 °C, what is its final
1. 1 answer
2. asked by Robbie
3. 1,118 views
A rock is dropped from a sea cliff 400m high.If the speed of sound is a constant 330 m/s, how long after the rock is dropped is
1. 4 answers
2. asked by Angela
3. 1,083 views
At the instant a traffic light turns green, a car starts with a constant acceleration of 1.8 m/s(squared). At the same instant,
1. 3 answers
2. asked by Angela
3. 1,076 views
{ The subscripts are in curly brackets }A mass m is at rest on a horizontal frictionless surface at t=0. Then a constant force
1. 1 answer
2. asked by Phil
3. 1,073 views
A 1100 kg car is moving toward the north along a straight road at a speed of 20.0 m/s. The driver applies the brakes and the car
1. 0 answers
2. asked by Phil
3. 1,071 views
I'm a junior in high school. I have a horrible 1.2 GPA at the moment. Is it even possible to raise my GPA to at least a 2.8 by
1. 1 answer
2. asked by Kayla
3. 1,059 views
Ammonia gas can be prepared by the reaction of a metal oxide such as calcium oxide with ammonium chloride.CaO(s) + 2 NH4Cl(s) 2
1. 1 answer
2. asked by Noel
3. 1,053 views
Help. don't understand substitution methodalso need an ordered pair? 7x+6y=15 -7x=y=27
1. 1 answer
2. asked by Susan
3. 1,052 views
Mr.Yakima teaches science classes,with the same number of students in each class.Of those tudents are 80 sixth graders and 40
1. 1 answer
2. asked by sjlslkdj
3. 1,038 views
Hey can anybody please help me with this? Im stuck? I got the first part right, but I don't really know. Ok here's the problem:A
1. 2 answers
2. asked by Anonymous
3. 1,017 views
The vapor pressure of pure water at 25 °C is 23.8 torr. Determine the vapor pressure (torr) of waterat 25 °C above a solution
1. 1 answer
2. asked by BEN
3. 1,012 views
How many orbitals in an atom can have each of the following designations?(a) 3p (b) n=1
1. 1 answer
2. asked by Jon
3. 1,010 views
f(x) = x^2 + 10x + 24=(x^2 + 10x)+ 24 =(x^2 + 10x + 25 - 25) + 24 f(x) =(x+5)^2 - 1 Vertex: (-5, -1) How do you sketch this? I
1. 1 answer
2. asked by John
3. 1,000 views
Would "Philosophy" be a good synonym for "thinking"? Thanks
1. 1 answer
2. asked by Shadow
3. 995 views
what is the time halfway between 10:30 am and 3:00 pm?
1. 8 answers
2. asked by Nina
3. 991 views
A student wants to determine the coefficients of static friction and kinetic friction between a box and a plank. She places the
1. 1 answer
2. asked by Anonymous
3. 989 views
a) Describe a graph for which the average rate of change is equal to instantaneous rate of change for its entire domain.
1. 1 answer
2. asked by Shaila
3. 963 views
The force exerted by the wind on the sails of a sailboat is 340 N north. The water exerts a force of 150 N east. If the boat
1. 0 answers
2. asked by bobby
3. 956 views
find each sum,difference,or product. If the sum or difference does not exist, write impossible.if A=[5 2 -7 B=[2 9 -3 C=[-4 2
1. 1 answer
2. asked by QP
3. 949 views
I need to make a t account for accounting homework. The statements are from 2009?Earned revenues for 2009 of 55,000 including
1. 1 answer
2. asked by chris
3. 941 views
How to solve: There are 40 chickens and cows in the farmyard. There are 100 legs in all. How many are cows and how many are
1. 6 answers
2. asked by Alison
3. 932 views
A truck covers 40.0 m in 7.00 s while smoothly slowing down to a final velocity of 2.45 m/s.
1. 3 answers
2. asked by J
3. 919 views
Jill has four of her five game scores: 8,6,6,3Her average score for the five games is 6 points. What is the fifth game score?
1. 3 answers
2. asked by Anonymous
3. 904 views
A ball of mass m1= .250 kg and velocity v01 = + 5 m/s collides head-on with a ball of mass m2= .800 kg that is initially at rest
1. 1 answer
2. asked by zevi
3. 876 views
Write and solve an equation to model the situation:two friends are renting an apartment. they pay the landlord the first months
1. 2 answers
2. asked by j
3. 876 views
A square is folded in half to form a rectangle. If the resulting rectangle has a perimeter of 15 inches,what is the are of the
1. 4 answers
2. asked by Sheila
3. 873 views
A man needs to repaint the two triangular gables on his house. Each gable is long and high. How many gallons of paint will he
1. 1 answer
2. asked by Jill
3. 872 views
Review Ch. 3 of A World of Art. Considering examples on pp. 52–54 in Ch. 3 of your text, what performance art might you
1. 2 answers
2. asked by stephaine
3. 866 views
Assume your business associate owes you $13650. Also assume they offer either $12020 now or $ 1950 per year for 7 years,
1. 1 answer
2. asked by molly anne
3. 861 views
Posted by rfvv on Wednesday, September 15, 2010 at 10:00pm.1. Tell me more about rice cake. 2. Tell me a lot about rice cake.
1. 1 answer
2. asked by rfvv
3. 855 views
Enormous numbers of microwave photons are needed to warm macroscopic samples of matter. A portion of soup containing 225 g water
1. 2 answers
2. asked by Jon
3. 840 views
Find the Quotient and remainder using long division.1. (x^3+1) / (x^2+x+2) 2. (14x^3-16x^2+10x+8) / (x-1) Please explain because
1. 1 answer
2. asked by Laly
3. 827 views
A 295 lb fullback runs the 40 yd dash at a speed of 19.3 ± 0.1 mi/h.(a) What is his de Broglie wavelength (in meters)? (b) What
1. 2 answers
2. asked by Jon
3. 824 views
so I have posted this before but this is with some wrok..Heres the question... When ice melts, it absorbs 0.33 kJ per gram. How
1. 8 answers
2. asked by Sarah
3. 821 views
Assume that the studenthas a cup with 9 writing implements: 4 pencils, 3 ball point pens, and 2 felt-tip pens. Students will
1. 1 answer
2. asked by NATHAN
3. 817 views
A 281 lb fullback runs the 40 yd dash at a speed of 23.0 ± 0.1 mi/h.(a) What is his de Broglie wavelength (in meters)?(b) What
1. 2 answers
2. asked by bob
3. 813 views
The most reactive group of the nonmetal are the?
1. 1 answer
2. asked by Janelle
3. 813 views
25.0 mL of ethanol (density = 0.789 g/mL) initially at 4.2°C is mixed with 35.7 mL of water (density = 1.0 g/mL) initially at
1. 1 answer
2. asked by Robbie
3. 811 views
What types of elements are involved in metallic bonding?A. noble gases B. metals and non-metals C. non-metals only D. metals
1. 2 answers
2. asked by Jason
3. 801 views
Calculate the amount of heat required to raise the temperature of a 54 g sample of water from 5°C to 20.°C.
1. 2 answers
2. asked by Ben
3. 793 views
he experiment is a sequence of Chemical Reactions. Procedure part A preparation fo copper (II) Hydroxide-get a solution of
1. 1 answer
2. asked by Missy For Bob
3. 791 views
I have a venn diagram with two circles and some numbers floating outside of the circles. The question is add the missing labels.
1. 1 answer
2. asked by Dhwani
3. 788 views
Needed: Nutrient to deliver food and waste
1. 2 answers
2. asked by Alyssia
3. 787 views
Dimensions of a paper cup. The volume of a paper cup, shaped like a circular cone is 30pie cubic centimeters. The radius of the
1. 2 answers
2. asked by Chris Molle
3. 758 views
Posted by rfvv on Wednesday, September 15, 2010 at 10:49pm.Posted by rfvv on Wednesday, September 15, 2010 at 10:00pm. 1. Tell
1. 1 answer
2. asked by rfvv
3. 745 views

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