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2012
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Questions Asked on May 7, 2012

HCN(aq) + SO4-2(aq) HSO4-(aq) + CN -(aq)a. What is the Bronsted - Lowry acid in this equation? b. What is the Bronsted - Lowry
1. 1 answer
2. asked by elizabeth
3. 6,563 views
Stuck again..."Determine the charge on the complex: diaquadichloroethylenediaminecobalt(III)" I'm having problems even writing a
1. 2 answers
2. asked by Miaow
3. 6,443 views
If you are dealt 3 cards from a shuffled deck of 52 cards, find the probability that all 3 cards are picture cards.
1. 1 answer
2. asked by Katie
3. 3,956 views
A tuning fork is set into vibration above a vertical open tube filled with water. The water level is allowed to drop slowly. As
1. 1 answer
2. asked by sarah
3. 3,482 views
The following reaction has a Delta Gvalue of 42.6 kJ/mol at 25oC: HB(aq) +H2O(l) --> H3O+(aq) +B-(aq) Calculate Ka for the acid
1. 2 answers
2. asked by Jake
3. 3,375 views
a rectangular plate 12ft long and 8 ft wide is submerged vertically with the longer edge in the surface of the water. Find the
1. 2 answers
2. asked by al
3. 3,015 views
The distribution of scores on a standardized aptitude test is approximately normal with a mean of 490 and a standard deviation
1. 1 answer
2. asked by SHelia
3. 2,898 views
A light is placed 5 ft. from the center of a globe 3 ft. in diameter. Find the area of the illuminated portion.thank you!
1. 1 answer
2. asked by sara
3. 2,689 views
what is the answer to pre algebra with pizzazz page 106
1. 6 answers
2. asked by Anonymous
3. 2,603 views
Car A has a mass of 1000kg and a speed of 60km/h, and car b has a mass of 2000kg and a speed of 30km/h. what is the ratio of
1. 2 answers
2. asked by sam c
3. 2,587 views
A merry-go-round revolves at a rate of 8.3 rev/min. A child who is seated at the outer edge of the merry-go-round travels at
1. 1 answer
2. asked by kenon
3. 2,567 views
If a total of 13.5 mol of NaHCO3 and 4.5 mol of C6H8O7 react, how many moles of CO2 and Na3C6H5O7 will be produced?3NaHCO3(aq) +
1. 1 answer
2. asked by Liz
3. 2,348 views
A copper kettle contains water at 24.2 °C. When the water is heated to 87.3 °C, the volume of the kettle expands by 7.34 x
1. 1 answer
2. asked by RM
3. 2,298 views
What is the molarity of a solution containing 9.0 moles of solute in 2500 mL of solution?I got this answer: M = (9.0mols/2.5L)=
1. 2 answers
2. asked by Amy
3. 2,276 views
If you are dealt 3 cards from a shuffled deck of 52 cards, find the probability that all 3 cards are picture cards.
1. 2 answers
2. asked by Katie
3. 2,173 views
A 2.0-kg ball moving at 10 m/s makes an off-center collision with a 3.0-kg ball that is initially at rest. After the collision,
1. 2 answers
2. asked by help please
3. 2,085 views
kevin had a board that was 5 and 1/4 feet long. while making making a fence, he cut a peice 3 and 3/4 feet long from the board.
1. 3 answers
2. asked by zac
3. 2,084 views
A swimmer swam north at 1.75 m/s across a current running from west to east at 2 m/s. She swam for 20 s. How far did she travel,
1. 1 answer
2. asked by Anonymous
3. 2,020 views
A 2.0-kg ball moving at 10 m/s makes an off-center collision with a 3.0-kg ball that is initially at rest. After the collision,
1. 2 answers
2. asked by help please
3. 1,965 views
In a financial deal, you are promised $800 the first day and each day after that you will receive 45% of the previous day's
1. 6 answers
2. asked by Lizzie
3. 1,850 views
Normal distribution models what type of variable??
1. 1 answer
2. asked by Nichole
3. 1,777 views
A rectangular prism has a volume of 750 cubic millimeters. Its length is 15 millimeters, and its width is 10 millimeters. What
1. 3 answers
2. asked by Lucas
3. 1,726 views
What is the limiting reagent when 150.0 g of nitrogen react with 32.1 g of hydrogen?N2(g) + 3H(g) > 2NH3(g) Thank you
1. 2 answers
2. asked by Amy
3. 1,627 views
A 0.140-mole quantity of CoCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Co2+ ions at
1. 1 answer
2. asked by Anonymous
3. 1,619 views
I have a piece of cardboard that is twice as long as it is wide .I f I cut a 1-inch by 1-inch square from each corner and fold
1. 5 answers
2. asked by cantu
3. 1,590 views
Explain how you can find 3/8% of $800? Not sure how to write it out, I know the answer is 3.
1. 3 answers
2. asked by Shelby
3. 1,585 views
The value of a $20,000 car decreases every year, t. The equation below models this situation.20000(1 - 0.04t) = 13,000 After how
1. 2 answers
2. asked by Jane
3. 1,574 views
How does the wavelength of light we observe from those galaxies compare with its original wavelength when it was emitted?The
1. 1 answer
2. asked by Alex-Johnson
3. 1,428 views
Genaro needs to capture a return of 40 percent for his one-year investment in a property. He believes that he can sell the
1. 1 answer
2. asked by felicia
3. 1,417 views
Convert the following credit card rate to the APR. Nebraska, 0.02192% daily rate. (Round your answer to the nearest whole
1. 2 answers
2. asked by Randy
3. 1,395 views
Six years ago, Bradford Community Hospital issued 20-year municipal bonds with a 7% annual coupon rate. The bonds were called
1. 1 answer
2. asked by Ashley
3. 1,383 views
A scuba diver searches for treasure at a depth of 20.0m below the surface of the sea. at what pressure must the scuba device
1. 1 answer
2. asked by Dan
3. 1,381 views
The numbers 1, 7, 21, 35, 35, 21, 7, 1 form a row of pascal's Triangle.Which power of (a+b) does the row go with? Write the next
1. 3 answers
2. asked by Gabe
3. 1,378 views
the shorter leg of a right triangle is 5 yards.if the hypotenuse is 13 yards,how long is the other leg?
1. 2 answers
2. asked by cantu
3. 1,318 views
Carlos hiked 1 and 3/4 miles along a nature trail to a fork in the trial. He than hiked 2 and 1/2 along a path that led to a
1. 3 answers
2. asked by Jeff
3. 1,312 views
16. Coaches advise athletes to warm up or exercise a few minutes before beginning a sports activity. Explain why warming up is
1. 3 answers
2. asked by Laruen
3. 1,298 views
Writeacher, I need your help to rephrase a few sentences. Thank you.1) Eveline imagines the reactions of people at work when she
1. 1 answer
2. asked by Frank
3. 1,293 views
1) find the indicated limit, if it exist?a) lim x->-2 (x^2 -9)/(x^2+x-2) b) lim x -> -∞ √(ax^2+bx+c)/dx + e, where a > 0,
1. 1 answer
2. asked by soasi piutau
3. 1,279 views
When a mixture of sulfur and metallic silver is heated, silver sulfide is produced. What mass of silver sulfide is produced from
1. 1 answer
2. asked by Pat
3. 1,236 views
Find a six-digit even number containing no zeros and no repeating digits in which the first digit is four more than the second
1. 1 answer
2. asked by Chris
3. 1,186 views
Long,narrow parklike area that stretches from the capitol to the Washington Monument.I don't know this one. Traces the history
1. 1 answer
2. asked by Colton
3. 1,178 views
Find the surface area of a right rectangular prism measuring 2 ft by 3 ft by 4 ft
1. 1 answer
2. asked by Chelsea
3. 1,178 views
A potential difference of 102 mV exists between the inner and outer surfaces of a cell membrane. The inner surface is negative
1. 1 answer
2. asked by andrew
3. 1,173 views
The disk has mass 10kg and radius 0.25m. The rod has mass 5kg, length 0.5m and radius 0.05m. The rod is split down the middle
1. 0 answers
2. asked by Beth
3. 1,172 views
Choose one of the stages of a criminal trial and in your own words describe the stage, noting its sequence in relation to other
1. 0 answers
2. asked by TERRICA
3. 1,167 views
Calculate the yearly cost of running a 6 W electric clock continuously in a location where energy costs 12 cents per kW · h.
1. 1 answer
2. asked by stupid lost person
3. 1,163 views
Subject – equilibriaPure ethanoic acid (25.0cm3, CH3COOH), pure ethanol (35.0 cm3, C2H5OH) and pure water (20.0cm3, H2O) were
1. 3 answers
2. asked by yaya
3. 1,161 views
True Or False; The Political machines of the large cities determinded what type of projects would be funded by tax dollars and
1. 2 answers
2. asked by MM
3. 1,155 views
a carpet measures 4 meters and 6 decimeters in lenght by 3 meters and 5 decimeters in width. what is its area in square meters?
1. 1 answer
2. asked by alida
3. 1,105 views
Solve by the linear combination method (with or without multiplication).6x – 2y = 2 –3x + 4y = 5
1. 1 answer
2. asked by Anonymous
3. 1,091 views
A king's crown is said to be solid gold but may be made of lead and covered with gold. when it is weighed in air, the scale
1. 1 answer
2. asked by Sarah
3. 1,074 views
A proton that has a mass m and is moving at 250 m/s in the + direction undergoes a head-on elastic collision with a stationary
1. 1 answer
2. asked by help please
3. 1,071 views
What grammatical structure is the italicized portion of the sentence?By mistake I opened a package addressed to my sister.
1. 1 answer
2. asked by Makayla
3. 1,054 views
4. Assume a drought in the Great Plains reduces the supply of wheat. Noting that wheat is a basic ingredient in the production
1. 0 answers
2. asked by Anonymous
3. 1,046 views
A gas has a pressure of 710 kPa at 227 Celsius. What will its pressure be at 27 Celsius, if the volume does not change?
1. 2 answers
2. asked by Terry
3. 1,034 views
the product of two consecutive even integersis 34 less than 7 times their sum.find the two integers.
1. 1 answer
2. asked by jo
3. 1,024 views
Can change in heart rate due to exercise be expressed in percentage difference to compare the rest rate and the exercise rate?
1. 1 answer
2. asked by buba
3. 1,021 views
what is solubility, in mol/L, of MgCO3 in a 0.65 mol/L solution of MgCL2 if the ksp of MgCO3 is 2.5*10^-5
1. 1 answer
2. asked by NICOLE
3. 1,011 views
what is the speed of 1kg object when the kinetic energy is 1 joule
1. 2 answers
2. asked by sam c
3. 1,011 views
given f(x)=x^3+5x find the rate of change for the interval [0.5,0.51]
1. 1 answer
2. asked by sarah
3. 1,011 views
When mentioning the exam's topics, can I include:Entire reading of abridged edition of Orwell's 1984. Is the adjective "entire"
1. 1 answer
2. asked by Frank
3. 997 views
write in fractional notation 16.904write in decimal notation 4149/10,000 is this right 0.4149
1. 1 answer
2. asked by miss c
3. 985 views
Calculate the pressure in an evacuated 250. mL container at 0.00 degrees C if 3.20 cm^3 of liquid oxygen evaporates. Assume that
1. 1 answer
2. asked by Lindsey
3. 984 views
Which museum has a collection of 14 museums?Museum of Natural History?
1. 4 answers
2. asked by Colton
3. 979 views
The string on a violin has a fundamental frequency of 120.0 Hz. The length of the vibrating portion is 36 cm and has a mass of
1. 1 answer
2. asked by ashlee
3. 973 views
For the following reaction at equilibrium, indicate if the equilibrium mixture contains mostly products, mostly reactants, or
1. 2 answers
2. asked by robyn
3. 955 views
If a train goes 25 mph how many hours. Does it need to go in 125 miles
1. 1 answer
2. asked by brittney
3. 951 views
Whats the office of the judicial system?My other choice was Justice Building. Is that the answer?
1. 1 answer
2. asked by Colton
3. 946 views
Two block are connected by a rope that runs over a pulley. The block on the tables has mass 4kg, the hanging block has mass 2kg,
1. 1 answer
2. asked by Bob
3. 945 views
If P(x) is a polynomial in x for which P(3)=0, then..?a) x-3 is a factor of P(x) b) x+3 is a factor of P(x) c) 3x is a factor of
1. 1 answer
2. asked by Sira
3. 943 views
A juggler performs in a room with a ceiling that is 2.4 m above the level of his hands. He throws a ball (diameter of 10 cm)
1. 0 answers
2. asked by Chleo
3. 943 views
An ideal gas performs 453 of work and loses 45J of internal energy
1. 0 answers
2. asked by Ramiro
3. 942 views
Sandra spent one-fifth pf her money and loaned one-third of the remainder to her brother Sam. She then had $24. How much money
1. 1 answer
2. asked by Phia
3. 935 views
Moreno Industries has adopted the following production budget for the first 4 months of 2013.Month Units Month Units January
1. 0 answers
2. asked by lynette
3. 905 views
It takes a cup of flour to make 100 cookies. How many cups of flour will it take to make 225 cookies?1/100 = x/225 Would it be
1. 1 answer
2. asked by Mandy
3. 903 views
The volume of a gas is 250 mL at 340.0 kPa pressure. What will the volume be when the pressure is reduced to 50.0 kPa, assuming
1. 1 answer
2. asked by George
3. 901 views
What effect did the Emancipation Proclamation have on the North and South?
1. 2 answers
2. asked by Cassie
3. 888 views
substitution methody=x+1 x+y=5
1. 1 answer
2. asked by tamm
3. 886 views
Molly Ellen, bookkeeper for Keystone Company, forgot to send in the payroll taxes due on April 15. She sent the payment November
1. 1 answer
2. asked by lynn
3. 885 views
Which of the following is a facator of 4by-3bz+8dy-6dz?a)4by-3bz b)b+d c)4y-3z d)4b+3d
1. 1 answer
2. asked by Sira
3. 871 views
Solve the system using substitution.Y=-3x^2+x-2, Y=-5x+3
1. 2 answers
2. asked by jenny
3. 862 views
At 0.00 degrees C a 1.00 L flask contains 5.00 x 10^-2 mol N2, 1.50 x 10^2 mg O2, and NH3 at a concentration of 5.00 x 10^18
1. 2 answers
2. asked by lindsey
3. 861 views
Bob is roller-skating at a speed of 1.5 m/s relative to the ground. He tossed a small ball forward. The ball moves at a speed of
1. 3 answers
2. asked by Shandy
3. 860 views
A balloon filled with helium has a volume of 30.0 L at a pressure of 100 kPa and a temperature of 15.0 Celsius. What will the
1. 1 answer
2. asked by Lisa
3. 849 views
I need someone to check these questions. I know its a lot of questions.2NH3 + Ag+ Ag(NH3)2+ a. What is the Lewis acid in this
1. 2 answers
2. asked by Elizabeth
3. 848 views
if $9,000 is to be invested, part at 13% and the rest at 8% simple interest , how much should be invested at each rate so that
1. 1 answer
2. asked by jota
3. 825 views
A proton that has a mass m and is moving at 250 m/s in the + direction undergoes a head-on elastic collision with a stationary
1. 0 answers
2. asked by help please
3. 815 views
When a ball is thrown in the air, the height h of a ball in feet t seconds after the ball is thrown in the air, is given by the
1. 1 answer
2. asked by Coach
3. 806 views
What is the answer to this math problem. I have 13 apples and pears. How many of each could i have?
1. 1 answer
2. asked by glenn
3. 803 views
A 20 feet vertical pole cast a shadow of 32 feet. What is the angle of elevation of the sun?
1. 1 answer
2. asked by alex
3. 799 views
home of important documents,such as the Constitution,Declaration of Independence,and Bill Of Rights.National Archives?
1. 1 answer
2. asked by Colton
3. 791 views
The new morals and manners of the 1920s were reflected inA. women's fashion B. the great migration C. the new factory jobs D.
1. 6 answers
2. asked by L
3. 785 views
17. Itis is the suffix that means swelling. What do you think tendonitis means? Would you expect tendonitis to be painful? Why?M
1. 5 answers
2. asked by Laruen
3. 783 views
3. Suppose that a business incurred implicit costs of $500,000 and explicit costs of $6 million in a specific year. If the firm
1. 0 answers
2. asked by Anonymous
3. 778 views
A flower shop owner wants to pay off the loan on a used delivery van that was purchased 11 months ago. The 2-year installment
1. 0 answers
2. asked by Anonymous
3. 776 views
A child whose weight is 281 N slides down a 6.20 m playground slide that makes an angle of 45.0¡ã with the horizontal. The
1. 1 answer
2. asked by harrison
3. 768 views
A metal bar with a length of 0.30 m and mass of 0.5 kg is free to slide (no friction) on a set of vertical rails. The rails and
1. 1 answer
2. asked by Rich
3. 765 views
How many coinsWhen i dumped the change out of my pocket, I noticed that i could pay the exact price for any item from one cent
1. 3 answers
2. asked by linda
3. 760 views
The new morals and manners of the 1920s were reflected inA. women's fashion B. the great migration C. the new factory jobs D.
1. 4 answers
2. asked by MM
3. 757 views
A scuba diver searches for treasure at a depth of 20.0m below the surface of the sea. at what pressure must the scuba device
1. 1 answer
2. asked by Sarah
3. 750 views

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