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2011
March
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March 10, 2011
if 8.6L of H2 reacted with 4.3L of O2 at STP, what is the volume of gaseous water collected (assuming none of it condenses)?
3 answers
asked by
Anonymous
7,465 views
The drawing shows a version of the loop-the-loop trick for a small car. If the car is given an initial speed of 4.6 m/s, what is
2 answers
asked by
Amanda
5,834 views
A 3.00 kg block starts from rest at the top of a 30° incline and accelerates uniformly down the incline, moving 1.94 m in 1.70
2 answers
asked by
justin
5,722 views
How do I use the sigma notation to express the series : 1+5+25+125+625+3125?
2 answers
asked by
Leonard
4,821 views
A boat sailing from A to B travels in a straight line until the captain realizes he is off course. The boat is turned through an
7 answers
asked by
Connor
4,575 views
an investment of 72,000 was made by a business club. the investment was split into three parts and lasted for one year. the
1 answer
asked by
Sarah
4,306 views
When the equation Cl2 ---> Cl- + ClO3- (basic solution) is balanced using the smallest whole-number coefficients, the
2 answers
asked by
DarcY H
4,105 views
Find the polynomial function P of the lowest possible degree, having real coefficients, with the given zeros.
3+2i, -2 and 1
1 answer
asked by
Tim
3,811 views
A mother wants to invest $9,000.00 for her son’s future education. She invents a portion of the money in a bank certificate of
2 answers
asked by
MARIAH
3,315 views
A 50.0 kg diver steps off a diving board and drops straight down into the water. The net force when in the water is an upward
4 answers
asked by
Becky
3,193 views
What is the concentration of a HNO3 solution if 10.0 mL of the solution is neutralized by 3.6 mL of a 0.20 M NaOH solution?
4 answers
asked by
NADIA
3,181 views
How many moles of helium are contained in a 5.00-L canister at 101 kPa and 30.0 degrees Celsius? I don't understand how to get
2 answers
asked by
Walker
3,035 views
The popultion of Medford High is 800 students & the population of WEstville High is 1240 students. Medfords pop. has been
1 answer
asked by
Casey
2,767 views
the average length of time for students to register for fall classes at a certain college has been 50 minutes. a new
1 answer
asked by
Jacy
2,399 views
The power P needed to propel a boat is directly proportional to the cube of the speed of the boat. A 100 hp engine is needed to
1 answer
asked by
Jeremiah
2,371 views
The pH of a 0.0642 M solution of a monoprotic acid
is 3.86. Is this a strong acid?
1 answer
asked by
kalyanmith
2,344 views
The poH of a solution of 0.25mol/dm3 of Hcl acid is
1 answer
asked by
peter onoriode
2,306 views
sandy is making a closed rectangular jewwellery box with a square base from two different woods . the wood for top and bottom
2 answers
asked by
Anonymous
2,299 views
What is the volume of 0.05-molar HCl that is required to neutralize 50 ml of a 0.10-molar Mg(OH)2 solution?
2 answers
asked by
Abe
2,088 views
Find d^2x/dt^2 as a function of x if dx/dt=4xcosx.
2 answers
asked by
Patrick
2,031 views
I need some help with this specific question. In a computer catalog, a computer monitor is listed as being 19 inches. This
3 answers
asked by
Celina
1,991 views
A rectangular rose garden will be surrounded by a brick wall on three sides and by a fence on the fourth side. The area of the
2 answers
asked by
Anonymous
1,937 views
The function y=Asin (sqrt(k/m)t) represents the oscillations of a mass m at the end of a spring. The constant k measures the
2 answers
asked by
Cady
1,844 views
An eight turn coil encloses an elliptical area having a major axis of 40.0 cm and a minor axis of 30.0 cm. The coil lies in the
2 answers
asked by
Stefan
1,777 views
Aldo has feet of fencing. He will use it to form three sides of a rectangular garden. The fourth side will be along a house and
2 answers
asked by
April
1,775 views
"A voltaic cell is constructed by immersing a strip of sillver metal in a 1.0 MAgNO3 solution and a strip of cadmium metal in a
2 answers
asked by
todd
1,738 views
HA and HB are both weak acids although HB is the
stronger of the two. Will it take a larger volume of a 0.10 M NaOH solution to
2 answers
asked by
sovanna
1,737 views
A block of weight 200N rest on a rough horizontal table when the block just begin slip the pulling force found to be 40N,what
3 answers
asked by
peter onoriode
1,668 views
How many grams of Ammonia, NH3 can be made from 250. grams of N2(g) ?
( first Balance the equation) N2 (g) + H2 (g) > NH3 (g)
1 answer
asked by
Dupree
1,627 views
A 25.0cm^3 aliquot of a solution containing Fe2+ ions and Fe3+ ions was acidified and titrated against KMnO4 solution. 15.0cm^3
1 answer
asked by
tam
1,571 views
How much work must be done to accelerate a baton from rest to an angular speed of 7.27 rad/s about its center? Consider the
1 answer
asked by
Megan
1,566 views
The solubility product for Zn(OH)2 is 3.0x10^-16. The formation constant for the hydroxo complex,Zn(OH)4^2- , is 4.6x10^17. What
1 answer
asked by
kris
1,552 views
The base length of the triangle with vertices A(1,1, B(9,1), C(5,5)is multipliend by 2.Describe the effect of the change on the
2 answers
asked by
Carmen
1,541 views
Calculate the amount of energy released when Butane is burned.
1 answer
asked by
Travis
1,525 views
A photogrpaher points a camera at a windows in a nearby building forming an angle of 42 degrees with the camera platform. If the
1 answer
asked by
K.C
1,521 views
ryan is 5 feet tall. his shadow is 9 feet long and the shadow of a building is 36 feet long. how tall is the building?
2 answers
asked by
ronal
1,463 views
The density of a 4.41-m long rod can be described by the linear density function λ(x) = 111 g/m + 12.3x g/m2. One end of the
0 answers
asked by
Emily
1,397 views
how much of a 0.225 M KCl solution contains 55.8g of KCl
2 answers
asked by
moises
1,356 views
Recently, a case of food poisoning was traced to a particular restaurant chain. The source was identified and corrective actions
0 answers
asked by
Bill
1,340 views
A proper lifetime of a certain particle is 100.0ns. a) How long does it live in the lab frame if it moves at
V=0.960c? b) How far
0 answers
asked by
libby
1,330 views
Like water, liquid ammonia undergoes autoionization:
(a) Identify the Brønsted acids and Brønsted bases in this reaction. (b)
1 answer
asked by
sok
1,328 views
American Food Services, Inc., leased a packaging machine from Barton and Barton Corporation. Barton and Barton completed
1 answer
asked by
Jessica
1,296 views
how much of a 0.225 M KCl solution contains 55.8g of KCl
1 answer
asked by
moises
1,281 views
A proper lifetime of a certain particle is 100.0ns. a) How long does it live in the lab frame if it moves at
V=0.960c? b) How far
2 answers
asked by
libby
1,276 views
How many grams of Ammonia, NH3 can be made from 250. grams of N2(g) ?
2 answers
asked by
Dupree
1,271 views
A sample of helium gas has a volume of 325L at 25C and at 5atm. At what temperature the gas can be compressed at 50atm to a
2 answers
asked by
twynna
1,260 views
If 5/8 of the apples are red,and the rest of the apples are green,what fraction of the apples are green?
2 answers
asked by
Anonymous
1,249 views
Quadrilateral ABCD is a rhombus with diagonals AC and BD. if angle M equals 25 find the measures of angles 2 , 3 , 4 and 5
4 answers
asked by
justin
1,223 views
A car is driven east for a distance of 49 km, then north for 21 km, and then in a direction 30° east of north for 27 km.
1 answer
asked by
tom
1,207 views
Hello. I will really appreciate your help.
1)which preposition is correct or better in the sentence "oil is a curse of/for the
1 answer
asked by
Ilma
1,207 views
A U.S. Firm wants to raise $10 million of capital so it can invest in new technology. How much will it need to raise in order to
2 answers
asked by
Julia
1,154 views
when a chemical reaction takes place, the number of atoms of each element in the reactants (blank) the number of atoms of each
2 answers
asked by
darrell
1,132 views
The voltage across the terminals of a 8.90 V battery is 8.00 V when the battery is connected to a 50.0 \Omega load.What is the
1 answer
asked by
Mitchell
1,108 views
Differentiate.
y= (cos x)^x u= cos x du= -sin x dx ln y = ln(cos x)^x ln y = x ln(cos x) (dy/dx)/(y)= ln(cos x) (dy/dx)= y ln(cos
2 answers
asked by
Chelsea
1,085 views
A truck enters a highway driving 60mph. A car enter the highway at the same place 14 minutes later and drives 66mph in the dame
1 answer
asked by
MARIAH
1,080 views
The probabilities of a student getting grade A, B, C and D are 0.2, 0.3, 0.15 and 0.35 respectively. Then the probability that
2 answers
asked by
Sharon
1,067 views
On June 30, 2011, Georgia-Atlantic, Inc., leased a warehouse facility from IC Leasing Corporation. The lease agreement calls for
1 answer
asked by
Jessica
1,066 views
I just need to know if the verb “prophesy” can be follow by to (ex. to Macbeth), if “army” is considered as a collective
2 answers
asked by
Mike
1,065 views
What mass of melamine, C3N3(NH2)3, will be obtained from 159.5 kg of urea, CO(NH2)2, if the yield of the overall reaction is
2 answers
asked by
Lara
1,052 views
a real estate office manages 50 apartments in downtown building . when the rent is 900$ per month, all the units are occupied.
1 answer
asked by
Anonymous
1,035 views
what is the difference between a physical change and a chemical reaction
1 answer
asked by
hi
1,022 views
When 100mL of 1.00 M Ba (NO3)2 and 100 mL of 1.00 M Na2SO4, both at 25 degrees celsius, are mixed in a constant pressure
3 answers
asked by
Johnny
1,020 views
Two 95.0 W (120 \rm V) lightbulbs are wired in series, then the combination is connected to a 120 V supply How much power is
2 answers
asked by
Mitchell
1,009 views
How to change 320% into a decimal and a fraction
1 answer
asked by
Matthew
1,008 views
A cue ball initially moving at 4.3m/s strikes a stationary eight ball of the same size and mass. After the collision, the cue
1 answer
asked by
sarah
994 views
It has been proposed to use large inductors as energy storage devices.
How much electrical energy is converted to light and
1 answer
asked by
Sarah
980 views
A sailor strikes the side of her ship just below the waterline. She hears the echo of the sound reflected from the ocean floor
1 answer
asked by
Student in Need
978 views
A resultant force of 50N pulls a body of mass 10kg along a smooth horizontal surface. Calculate the acceleration with which the
3 answers
asked by
Alex
977 views
1.The Soviet program of creating cotton fields in central Asia had disastrous consequences for:
a. the Caspian Sea b. the Aral
3 answers
asked by
Cheryl
974 views
What is the percent composition of O in C8H8O3
1 answer
asked by
.
972 views
Express your answer as a chemical equation. Identify all of the phases in your answer.
H3PO + Sr(OH)2=
1 answer
asked by
joseph
968 views
whenever two Apollo astronauts were on the surface of the moon, a third astronaut orbited the moon, assume the orbit to be
1 answer
asked by
Anonymous
952 views
if 3x years from today, Megan will be (3y + 4) times her present age, what is Megan's present age in terms of x and y?
1 answer
asked by
donald
944 views
Calculate the amount of energy released when Methane is burned.
1 answer
asked by
Travis
941 views
how many grams of manganese (4) oxide are needed to make 5.6 liters of a 2.1 solution
1 answer
asked by
robert
940 views
I MUST DRAW TWO CARDS WHOSE SUM IS NINE, FROM A STACK OF CARDS NUMBERED ONE THRU TEN. AFTER THE FIRST DRAW, I REPLACED THE CARD
2 answers
asked by
Americal
937 views
Suppose the dimensions of a rectangle with a perimeter of 22 inches are tripled. Find the perimeter of the new rectangle in
2 answers
asked by
avril
934 views
Calculate the amount of energy released when Ethanol is burned.
1 answer
asked by
Travis
925 views
A meter stick has a mass of 200g and its center of gravity is at the 50.0 cm mark. If 150g is attached to the stick at the 10 cm
0 answers
asked by
Lindsey
924 views
The weights of adult males are normally distributed with a mean of 172 lb and a standard deviation of 29 lb
Q.Find the weight
1 answer
asked by
Nathan
921 views
what are the effects of geomagnetism to health? and how it can be prevented. The situation is "we off our main power because we
1 answer
asked by
starzy
917 views
Two capacitors, identical except for the dielectric material between their plates, are connected in parallel.
One has a material
0 answers
asked by
crystal
879 views
Okay so for this question
Qu'est-ce que tu viens de faire aujourd'hui? Je viens de parler au Francais. D'après toi, est-ce qu'il
1 answer
asked by
Sidney
871 views
. Two groups of students are using a dynamic geometry software program to investigate the properties of quadrilaterals. The
2 answers
asked by
michele
850 views
The Progressive Era (1890-1920)
What does the outcome tell us about the way americans of the time felt about progressive reform
0 answers
asked by
David
841 views
An eight turn coil encloses an elliptical area having a major axis of 40.0 cm and a minor axis of 30.0 cm. The coil lies in the
1 answer
asked by
Stefan
818 views
The length of a rectangle is 7cm greater than the width. Find the length and the width if the perimeter is 54cm
1 answer
asked by
Bob
817 views
My question is about sasquatches. I just want to know if they are real. Is there someone who can answer this question??
5 answers
asked by
candice
817 views
Use the data in Table 15.3 to calculate the equilibrium
constant for the following reaction: HCOOH(aq) + OH(aq) <-->HCOO(aq) +
2 answers
asked by
vichka
812 views
A student titrates 0.025 M KOH into 50.00 ml of a solution of unknown weak acid HA. Equivalence point is reached when 30.00 ml
1 answer
asked by
Patrick
803 views
Identify coefficients and the degrees of each term polynomial, and then find the degree of each polynomial.
a^3b^8c^2 - c^22 +
1 answer
asked by
Miguel
797 views
How would you say Ash Wednesday and Easter in French? My French teacher said it today, but I just can't recall what it was
2 answers
asked by
Tania
792 views
Assume that the earth is a uniform sphere and that its path around the sun is circular.
(a) Calculate the kinetic energy that the
1 answer
asked by
Taylor
789 views
CUTTING A CIRCLE INTO EQUAL SECTION OF A SMALL CENTRAL ANGLE TO FIND THE AREA OF A CIRCLE BY USING THE FORMULA A=PIE R2
3 answers
asked by
ASWATHY
787 views
(a) Find the speed of a satellite moving around the earth in a circular orbit that has a radius equal to six times the earth's
3 answers
asked by
Anonymous
786 views
What is the oxidation states for K2CrO4
2 answers
asked by
OLsoftball
766 views
When the following equation is balanced the coefficient of CaO is ...
CaO + P4O10 > Ca3(PO4)2
1 answer
asked by
.
757 views
Compare Raphael’s School of Athens to Veronese’s Christ in the House of Levi. Explain how each artist reflected the
0 answers
asked by
Regina
752 views
A 3.3 kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 4.2 m/s2, find the force
1 answer
asked by
justin
750 views
A loud speaker emits energy in all directions at a rate of 2.75 J/s . What is the intensity level at a distance of 25 m?
2 answers
asked by
Anisha
749 views
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