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2012
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Questions Asked on March 18, 2012

Write an equation to represent the dissociation of propionic acid (CH3CH2COOH) in water. (Type your answer using the format H2O
1. 3 answers
2. asked by Anonymous
3. 6,323 views
A vending machine dispenses coffee into an eight-ounce cup. The amount of coffee dispensed into the cup is normally distributed
1. 2 answers
2. asked by Shamin
3. 6,178 views
Two airplanes take off from an airport at the same time. One travels on a heading of 45 at 420 mph and the other on a heading of
1. 11 answers
2. asked by Adrianna
3. 6,149 views
Write the general solution to y = arcsin (0.6428).40°±360°k 140°±360°k 220°±360°k 320°±360°k How do I find the right
1. 1 answer
2. asked by Adrianna
3. 5,949 views
The average human body contains 6.20 L of blood with a concentration of 2.40×10−5 M . If a person ingests 8.00 mL of 13.0 mM
1. 3 answers
2. asked by Mason
3. 4,856 views
A convex mirror in an amusement park has a radius of curvature of 3.00m. A man stands in front of the mirror so that his image
1. 4 answers
2. asked by Daniel
3. 4,072 views
What will be the equilibrium temperature when a 245-g block of copper at 285„aC is placed in a 145-g aluminum calorimeter cup
1. 1 answer
2. asked by lisa
3. 3,245 views
LMN have vertices at L(0,4) M(-5,2),and N (2,-2). determine the equation for the perpendicular bisector that passes through MN
1. 1 answer
2. asked by jan
3. 3,071 views
Belinda needs to find the center of mass of a sculpture she has made so that it will hang in a gallery correctly. The sculpture
1. 1 answer
2. asked by Priyanka
3. 2,712 views
harun and kuna competed in a 200-m race.harun ran at a speed of 5 m/s.kuna ran at a speed of 8 m/s.if they started at the same
1. 3 answers
2. asked by Da S
3. 2,600 views
Planet X has the same mass as earth, but its radius is only half as big. How does the gravity on this planet compare with the
1. 3 answers
2. asked by Stephanie
3. 2,561 views
You have a 2.00 kg block of lead. Lead melts at 327.5°C. CPb = 130.0 , and ï�„Hf for lead is 2.04 Ã— 104 J/kg. Say you
1. 2 answers
2. asked by Pat
3. 2,520 views
In a computer simulation, a satellite orbits around Earth at a distance from the Earth's surface of 2.1 X 104 miles. The orbit
1. 3 answers
2. asked by John
3. 2,436 views
A 67.0 kg person, standing on a diving board, dives straight down into the water. Just before striking the water, her speed is
1. 1 answer
2. asked by Foxxi
3. 2,096 views
What volume of 0.500 M hydrochloric acid is required to exactly neutralize 40.00 mL 0.150 M NaOH?
1. 2 answers
2. asked by Arianna
3. 2,041 views
Hydrogen gas and iodine gas react via the equation, H2 + I2 <--> 2HI, and K=76 at 600K. If 0.05 mole of HI is placed in a flask
1. 2 answers
2. asked by Kristen
3. 1,999 views
A pilot wishes to fly on course 290 with an air speed of 300 knots when the wind blows from 224 at 18 knots. Find the drift
1. 3 answers
2. asked by Adrianna
3. 1,979 views
janice scored 85% on the last test. she answered 34 questions correctly. how many questions were on the test?
1. 6 answers
2. asked by jocelyn
3. 1,903 views
The equlibrium constant K, for the reaction, H2 + CO2 <-> H20 + CO, is 4.2 at 1650 degrees C. Initially, 0.80 mol H2 and 0.80
1. 1 answer
2. asked by Kristen
3. 1,662 views
A force of 60 N is exerted on one end of a 1.0-m-long lever. The other end of the lever is attached to a rotating rod that is
1. 2 answers
2. asked by Mr. R
3. 1,642 views
Times for a surgical procedure are normally distributed. Method A has a mean of 28 minutes and a standard deviation of 2 minutes
1. 3 answers
2. asked by Matthew
3. 1,533 views
I am working on a redox stoichiometry lab. I need to calculate the moles NaBO3*4H2O.Mass=1.0133g in 100mL solution In my
1. 3 answers
2. asked by Sheena
3. 1,461 views
A 25.00 mL sample of a clear saturated solution of PbI2 requires 14.3 mL of a certain AgNO3(aq) for its titration.I^-(from satd
1. 2 answers
2. asked by Ash
3. 1,452 views
In each of the following cases, the mass is 7.99 kg and the radius is 7.50 cm.(a) What is the moment of inertia (kg/m2 ) of a
1. 1 answer
2. asked by john
3. 1,451 views
a plane takes off at 10.00am from an airfield, and flies at 120km/h on a bearing of N35W. A second plane takes off at 10.05am
1. 2 answers
2. asked by Anonymous
3. 1,417 views
What is the ending balance in an account that opebs with $7000, earns 7.5% interest compound quarterly, and is held for 20
1. 1 answer
2. asked by Yvonne
3. 1,373 views
A landscape architect is designing a triangular garden to fit in the corner of a lot. The corner of the lot forms an angle of
1. 1 answer
2. asked by Ayesha
3. 1,371 views
A cube of ice is taken from the freezer at -8.5 degrees celsius and placed in a 100 gram aluminum calorimeter filled with 300
1. 1 answer
2. asked by Donald
3. 1,333 views
A resonant frequency is a frequency that resonates within a tube of some length. The first resonant frequency of the average ear
1. 3 answers
2. asked by Jenna
3. 1,320 views
Explain how the vector C⃗(Going from the head of B⃗ to the head of A⃗) can be written in terms of vectors A⃗ and B⃗Giv
1. 2 answers
2. asked by Melissa
3. 1,274 views
The table below shows the market basket quantities and prices for the base year (year 1)Base year 1 Price in price Quantity base
1. 0 answers
2. asked by Hannah
3. 1,268 views
Planet X has the same mass as earth, but its radius is only half as big. How does the gravity on this planet compare with the
1. 2 answers
2. asked by Stephanie
3. 1,262 views
A 44.0-kg woman stands at one end of a 148 kg raft that is 6 m long. The other end of the raft is 0.5 m from a pier.(a) The
1. 2 answers
2. asked by Priyanka
3. 1,222 views
A student is interested in whether students who study with music playing devote as much attention to their studies as do
1. 1 answer
2. asked by kelly
3. 1,196 views
how much heat does it take to raise the temperature of 0.10 kg of gold bt 25 C?
1. 3 answers
2. asked by Tawha
3. 1,194 views
FIND THE SLOP of line containing points(-2,8) and (3,5)
1. 2 answers
2. asked by Anonymous
3. 1,190 views
Can someone help me with my business law project? I have to profile (interview) six legal professions.One of the people I picked
1. 0 answers
2. asked by chocolate
3. 1,184 views
if you were going to leave your home and your kids put you to aged care facility how would you feel and how would you think and
1. 1 answer
2. asked by sarah
3. 1,169 views
Da Ming walks from his school to his house at a speed of 5km/h.he takes 20 minutes to reach home.what is the distance between
1. 1 answer
2. asked by Da S
3. 1,156 views
a ladder is resting against a wall. the top of the ladder touches the wall at a height of 6 feet. find the length of the ladder
1. 1 answer
2. asked by amanda
3. 1,149 views
A customer is buying a $100 drill and two $15 drill bit sets. The customer uses a gift card worth $50 to pay for a portion of
1. 2 answers
2. asked by Anonymous
3. 1,147 views
two cars leave an intersection. one car travels north; the other east. when the car traveling north had gone 15 miles, the
1. 1 answer
2. asked by amanda
3. 1,143 views
You mix 40.0 g of ethanol (C2H5OH, molecular weight = 46.1 g/mol) and 60.0 g of water (molecular weight = 18.0 g/mol) The
1. 13 answers
2. asked by Jen
3. 1,137 views
A document is to contain 80cm squared of print. The margins at the top & bottom are each 2cm wide and margins on each side are
1. 0 answers
2. asked by Khateeb
3. 1,129 views
The amount of water bucket holds,if b litres of water is added to the bucket already holding 4 litres of water.what is going to
1. 3 answers
2. asked by Patricia
3. 1,127 views
calculate the solubility of barium sulfate (Ksp=1.1x10^-10) ina) water b) a 0.10 M barium chloride solution help is GREATLY
1. 1 answer
2. asked by brooke
3. 1,111 views
what is the kyoto protocol?
1. 1 answer
2. asked by Steph
3. 1,111 views
A saturated solution is prepared by dissolving 3.2 g of a salt in 9.10 g of water to yield a saturated solution. What is the
1. 2 answers
2. asked by Riley
3. 1,106 views
In the following test for Sulfated Ash, ammonium carbonate solution was added. What is the purpose of adding ammonium carbonate
1. 1 answer
2. asked by anne
3. 1,083 views
P17-3 (Available-for-Sale Investments) Cardinal Paz Corp. carries an account in its general ledger called Investments, which
1. 0 answers
2. asked by Yo
3. 1,081 views
A scientist measures the standard enthalpy change for the following reaction to be -53.4 kJ :Ca(OH)2(aq) + 2 HCl(aq) CaCl2(s) +
1. 1 answer
2. asked by Austin
3. 1,074 views
Suppose R is the rectangle 1<=x<=4, |y|<=2 and evaluate the double integral ∫R∫f(x,y)dA, where f(x,y)= y/(1+3x^4)^(1/2).I
1. 1 answer
2. asked by Bryant
3. 1,059 views
Use diagrams of the Market for Loanable Funds and the Market for Foreign Currency to describe what would happen to the net
1. 0 answers
2. asked by Agent
3. 1,044 views
Factor the following trinomial:12x^2 - 11x + 2 Please help I have no idea how to do this!
1. 2 answers
2. asked by Anonymous
3. 1,016 views
How drug addiction is a human factor that may cause ill health,accidents crises or disaster
1. 2 answers
2. asked by Nokthula
3. 1,009 views
briefly summarizing the theory and discussing at least two of the “Seven Intelligences” that apply most closely to you,
1. 2 answers
2. asked by chris
3. 1,005 views
At a local park, there is a large circular fountain feature that is 50 feet across,surrounded by a path that is 8ft wide. A
1. 1 answer
2. asked by kim
3. 1,002 views
A scientist measures the standard enthalpy change for the following reaction to be -53.4 kJ :Ca(OH)2(aq) + 2 HCl(aq) CaCl2(s) +
1. 1 answer
2. asked by Austin
3. 1,002 views
the passage makes it clear that aunt georgiana??
1. 1 answer
2. asked by selena
3. 988 views
Ms Sue, here is the second and last part, concerning Stevenson's biography. Thank you very much for helping me.1) Robert Louis
1. 1 answer
2. asked by Matthew
3. 962 views
Convert from polar to rectangular r=3cos2theta
1. 3 answers
2. asked by Tati
3. 951 views
Writeacher, I urgently need you to revise the introductory part of Chapter 10 (Dr Jekyll and Mrs Hyde). Can you check
1. 0 answers
2. asked by Matthew
3. 944 views
Pure water boils at 100ºC (212ºF). When a substance is added to the water the boiling point increases due to what is referred
1. 1 answer
2. asked by Hannah
3. 943 views
The table below shows the market basket quantities and prices for the base year (year 1)Base year 1 Price in price Quantity base
1. 0 answers
2. asked by Hannah
3. 909 views
I need to graph the line y=-4x-3 using the slope and y intercept form how do i do this
1. 2 answers
2. asked by Janine
3. 888 views
If you have 4.90 moles of Ba, how many liters of N2 would you have at STP?
1. 1 answer
2. asked by Tom
3. 882 views
the fax corporation bought a fax machine for $700. the fax machine depreciates at a rate of $25 a monthA) Find a function F that
1. 1 answer
2. asked by kim
3. 880 views
the height of a box is 6 inches. the length is three inches more than the width. find the width if the volume is 240 cubic
1. 1 answer
2. asked by amanda
3. 861 views
0.0412 = 0.0015 - x / 0.025 + 1/2xSolve for x. 0.0412 = 0.015-x / 0.525x I am not sure where to go from here since there are two
1. 15 answers
2. asked by Hannah
3. 860 views
What is the complete chemical equation?Al(s) + Cu(CH3COO)2(aq) -> ?
1. 1 answer
2. asked by Zoe
3. 860 views
In each of the following cases, the mass is 7.99 kg and the radius is 7.50 cm.(a) What is the moment of inertia (kg/m2 ) of a
1. 1 answer
2. asked by john
3. 857 views
A skier starts from rest at the top of a hill that is inclined at 12.0° with the horizontal. The hillside is 180.0 m long, and
1. 1 answer
2. asked by smh
3. 851 views
lisa began her journey from home at 1350 and reached her destination at 1415.A.how long did she take for the whole journey? B.if
1. 1 answer
2. asked by Da S
3. 838 views
find a vector equation of the line, which passes through the point (1,3,11) and is perpendicular to the yz-plane
1. 2 answers
2. asked by kally
3. 828 views
The force of repulsion that two like charges exert on each other is 3.0 N. What will the force be if the distance between the
1. 1 answer
2. asked by Cookie
3. 821 views
the area of a square is numerically 165 more than the perimeter. find the length of the side
1. 1 answer
2. asked by amanda
3. 818 views
A 24 foot ladder is leaning against a building. Let x be the distance between the bottom of the ladder abd the building and let
1. 1 answer
2. asked by Lynn
3. 803 views
what was vimy ridge
1. 1 answer
2. asked by ted
3. 793 views
In a 180 kilogram sample of ore, there was 3.2% of metal. How many kilograms of metal were in the sample?
1. 1 answer
2. asked by jocelyn
3. 786 views
Writeacher, I urgently need you to check these sentences. Thank you.1) You forgot to mention the fact that Robinson keeps
1. 1 answer
2. asked by Matthew
3. 781 views
a. Exactly 4.000 mol of NH3 is burned in a constant volume (bomb) calorimeter immersed into 100.0kg of water. The temperature of
1. 4 answers
2. asked by Wendy
3. 751 views
Consider a game where Ann and Bob play against each other in a dice game, Ann wins if her score is higher than Bob's, Bob wins
1. 0 answers
2. asked by mary
3. 749 views
1. What Argentine river has the same name as one of the states in the United States? The Colorado River2. What landform is part
1. 1 answer
2. asked by Reed
3. 737 views
For the following reaction, the equilibrium constantKC = 97.0 at 900 K. If the initial concentrations of NH3 and H2S are both
1. 13 answers
2. asked by Riley
3. 729 views
Calculate the pH of 100.0 mL ofa buffer that is 0.070 M NH4CL and 0.130 M NH3 before and after the addition of 1.00 ml of 5.55 M
1. 1 answer
2. asked by Jamie
3. 716 views
In the word ecologists, is eco the root morpheme or ology? Are the morphemes eco, log, y, ist, s or ec, ology, ist, s ?This is
1. 0 answers
2. asked by Matt
3. 701 views
given the function k described by k(x)=x+20 find each of the followingk(0)= k(-12)= k(-9)= k(15)= k(y+1)=
1. 1 answer
2. asked by coco
3. 690 views
A sphere has a radius of 0.20 meters and has a uniform surface charge density equal to 6.3 micro coulombs per meter squared. A
1. 0 answers
2. asked by doug
3. 671 views
A certain form of albinism in humans is recessive and autosomal. Assume that 1% of the individuals in a given population are
1. 0 answers
2. asked by Anon
3. 667 views
Use the Pythagorean distance formula to calculate the distance between thefollowing points on a graph: (-7,-3) (8,-11)
1. 1 answer
2. asked by kim
3. 659 views
A buffer solution was prepared by mixing 442 mL of 0.181 M NaOCl and 139 mL of 0.421 M HOCl. Calculate the pH of the solution
1. 1 answer
2. asked by cathy
3. 658 views
Your kids have asked you to set up a cable fromtheir tree house to the groundso that they can slide down quickly when it’s
1. 1 answer
2. asked by kim
3. 652 views
A cell phone, when weighed in air has a weight of 5.5 newton. When completely immersed in water, however, it has a weight of 3.3
1. 1 answer
2. asked by Loiso
3. 649 views
A water bed has a dimension of 2m × 2m × 2m. The floor of the bed will tolerate an additional load of no more than 600N. Find
1. 1 answer
2. asked by Loiso
3. 648 views
Could you please check these sentences?Thank you very much, Writeacher. 1) Your paragraphs show a good knowledge of the literary
1. 0 answers
2. asked by Matthew
3. 647 views
The original equation was1.7e-3 = (0.0015 -x)^2 / (0.025 +1/2x)(0.025 + 1/2x) Square root of both sides is 0.0412 = (0.0015-x) /
1. 7 answers
2. asked by Hannah
3. 646 views
i have a few problems can you check?1. which number is 1.92509 rounded to the nearest ten - thousandths? a 1.9251 b. 1.9250 c.
1. 1 answer
2. asked by marko
3. 645 views
The equilibrium constant KP for the following reaction is 4 atm^2 at 300 K. AB(s) ---> A(g) + B(g)What is the equilibrium
1. 9 answers
2. asked by Wendy
3. 644 views
A water bed has a dimension of 2m × 2m × 2m. The floor of the bed will tolerate an additional load of no more than 600N. Find
1. 1 answer
2. asked by Loiso
3. 643 views
Can someone help me with my business law project? I have to profile (interview) six legal professions.One of the people I picked
1. 1 answer
2. asked by chocolate
3. 642 views

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