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2012
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Questions Asked on March 6, 2012

Which type(s) of symmetry does the uppercase letter H have?my answer i believe is reflectional symmetry Which type of symmetry
1. 20 answers
2. asked by Brandon
3. 13,189 views
At equilibrium, the concentrations in this system were found to be [N2] = [O2] = 0.100 M and [NO] = 0.500 M.N2(g) + O2(g) <->
1. 7 answers
2. asked by David
3. 13,147 views
In which direction will the net reaction proceed.X(g) + Y(g) <==> Z(g) .. Kp = 1.00 at 300k for each of these sets of initial
1. 2 answers
2. asked by Tracy
3. 7,750 views
The value of g at Earth’s surface is about 9.8 m/s^2. If Earth were of uniform density (same mass/volume throughout), what
1. 1 answer
2. asked by jim
3. 6,327 views
Consider this system at equilibrium.A(aq) <-> B(aq) Delta H = +750 kJ/mol .. What can be said about Q and K immediately after an
1. 3 answers
2. asked by Tracy
3. 6,252 views
A microscope shows you an image of an object that is 80 times the actual size. Therefore, the scale factor of the enlargement is
1. 7 answers
2. asked by Brandon
3. 5,436 views
Did I answer this equilibrium question correctly?2CO(g) + O2(g) <-> 2CO2(g) 1) How will increasing the concentration of CO shift
1. 4 answers
2. asked by Tracy
3. 5,392 views
A blueprint for a house has a scale factor of 1:35. A wall in the blueprint is 3inches. What is the length of the actual wall?Ca
1. 7 answers
2. asked by Brandon
3. 4,672 views
What figure of speech is 'the heavens let loose' in a comprehension implying a heavy rain
1. 11 answers
2. asked by Mozes dixon
3. 4,526 views
Two converging lenses are separated by 23.40 cm. The focal length of each lens is 12.20 cm. An object is placed 35.00 cm to the
1. 1 answer
2. asked by DCM
3. 4,438 views
Write the standard line notation for each cell below.IO3-(aq) + Fe2+(aq)--> Fe3+(aq) +I2(aq)
1. 1 answer
2. asked by Janvi
3. 4,417 views
Pilots can be tested for the stresses of flying high-speed jets in a whirling "human centrifuge," which takes 1.8 min to turn
1. 1 answer
2. asked by Ben
3. 4,397 views
How do you do the hybridization of CBr4?
1. 1 answer
2. asked by erin
3. 4,023 views
At 389K, this reaction has a Kc value of 0.0682. 2X(g) + 2Y(g) <-> Z(g) .. Calculate Kp at 389K. Kp=this is what I did.. can
1. 2 answers
2. asked by Tracy
3. 3,858 views
If you stand next to a wall on a frictionless skateboard and push the wall with a force of 40N, how hard does the wall push on
1. 1 answer
2. asked by kamish
3. 3,732 views
A small light source located 1 m in front of a 1 m^2 opening illuminates a wall behind. If the wall is 1 m behind the opening (2
1. 1 answer
2. asked by jim
3. 3,536 views
consider the following reaction:2CH3OH(g) yields 2CH4(g) + O2(g) change in enthalpy= 252.8kJ How many kilojoules of heat are
1. 2 answers
2. asked by Dylan
3. 3,377 views
Rank the microtidal forces on your own body, from greatest to least, produced by the:A. JupiterB. PlutoC. Earth greatest to
1. 3 answers
2. asked by jim
3. 3,243 views
At a given temperature, the elementary reaction A <=> B in the forward direction is first order in A with a rate constant of
1. 1 answer
2. asked by Jessica
3. 3,234 views
at 2 p.m., the level of the water in the pool was 10 feet. at 6 p.m., the level of water was 2 feet. find the constant rate of
1. 5 answers
2. asked by macail
3. 2,963 views
A ship leaves port with a bearing of S 40 W. After traveling 7 miles, the ship turns 90 degrees on a bearing of N 50 W for 11
1. 1 answer
2. asked by Unkown
3. 2,639 views
Find the volume formed by rotating the region enclosed by:x = 8 y and y3 = x with y ≥ 0 about the y-axis
1. 1 answer
2. asked by Cait
3. 2,442 views
There are 10 marbles in a bag. 5 blue, 3 red and 2 green. If you draw 1 marble at random, What are the odds in favor of drawing
1. 3 answers
2. asked by Anonymous
3. 2,270 views
An algebra teacher drove past a farmyard that was full of chickens and pigs. The teacher happened to notice that there were a
1. 2 answers
2. asked by Amaris
3. 2,092 views
If 0.500 mol of nitrogen gas occupies a volume of 11.0 L at 0°C, what volume will 2.15 mol of nitrogen gas occupy at the same
1. 2 answers
2. asked by Dna
3. 2,088 views
At 50 fahrenheit the maximum amount of water vapor in air is 9g/m3 if the relative humidity is 40% what is the mass of water
1. 2 answers
2. asked by jrobinson47
3. 2,053 views
How much more crust does a large pizza with a diameter of 12 inches have than a small pizza with an 8-inch diameter?
1. 3 answers
2. asked by Jon
3. 2,039 views
If 3.70 mol calcium carbide (CaC2) reacts with an excess of water, how many moles of acetylene (C2H2) will be produced?
1. 1 answer
2. asked by Rissa
3. 2,034 views
In phosphoric acid, why is it relatively easy to remove the first proton, considerably harder to remove the second proton, and
1. 1 answer
2. asked by Tina
3. 2,017 views
the ratio of boys to girls is 9 to 10. There are 189 boysin the school. How many girls are there?
1. 2 answers
2. asked by Anonymous
3. 1,981 views
An equilibrium mixture of PCl5(g), PCl3(g), and Cl2(g) has a partial pressure of 217.0 torr, 13.2 torr, and 13.2 torr,
1. 5 answers
2. asked by Kat
3. 1,928 views
I have to revise these sentences as if speaking to a 10th grade level in education. Can you tell me if these are correct:1. We
1. 4 answers
2. asked by Sue
3. 1,880 views
Suppose that the amount of algae is a pond doubles every 3 hours. If the pond initially contains 70 pounds of algae, how much
1. 1 answer
2. asked by Jane
3. 1,849 views
Write a formula that converts x hours to y seconds
1. 2 answers
2. asked by lanie
3. 1,843 views
What amount of heat is required to melt 100 g of ice at 0°C into water at 25°C? The specific heat of ice is approximately 2.09
1. 0 answers
2. asked by Anonymous
3. 1,767 views
if f(x) = square root of e^2x +1, then then f'(0) equals what?
1. 1 answer
2. asked by shane
3. 1,759 views
A farmer decides to enclose a rectangular garden, using the side of a barn as one side of the rectangle. What is the maximum
1. 3 answers
2. asked by Mary
3. 1,702 views
How many moles of nitric acid will be produced when .51 mole of dinitrogen pentoxide reacts
1. 1 answer
2. asked by Bob
3. 1,689 views
18. Carla earns $8.43 per hour working 40 hours a week. If she worked 7 overtime hours one week, what would be her earnings?
1. 3 answers
2. asked by Colton
3. 1,642 views
A child drops a ball onto the road 28 m in front of a car travelling at 50 km/h. If the car can decelerate at a rate of 3.5
1. 1 answer
2. asked by Jayy
3. 1,597 views
A box with a mass of 2 kg is lifted (without acceleration) through a height of 8.0 m in order to place it upon the shelf of a
1. 3 answers
2. asked by Sara
3. 1,596 views
The following system is at equilibrium with [N2O4] = 0.55 M and [NO2] = 0.25 M. If an additional 0.10 M NO2 is added to the
1. 3 answers
2. asked by Beth
3. 1,583 views
Cytochrome, a complicated molecule that we will represent as CyFe2+, reacts with the air we breathe to supply energy required to
1. 3 answers
2. asked by Radhika
3. 1,582 views
Venietta read 4 books in 7 weeks. How many books did she read each week?
1. 2 answers
2. asked by consquela
3. 1,476 views
Solve. Check for extraneous solutions.1) (/3x+7) = x-1 2) (3/2x)-3=9 Note: (/3x+7) is the square root of 3x plus 7 and
1. 1 answer
2. asked by cheyanne
3. 1,468 views
I did a back titration with an unknown carbonate and using the average % carbonate (by mass) which I found to be 27.40% and
1. 3 answers
2. asked by Laura
3. 1,439 views
C2H4(g)+CO2(g)+H2O(g)interpret the equation in terms of relative numbers of moles,volumes of gas at STP,and masses of reactants
1. 1 answer
2. asked by la la
3. 1,430 views
A roller-coaster car with a mass of 650 kg starts at rest from a point 28 m above the ground. At point B, it is 14 m above the
1. 1 answer
2. asked by Sara
3. 1,415 views
Jose can jump vertically 1 meter from his skateboard when it is at rest. When the skateboard is moving horizontally, Jose can
1. 1 answer
2. asked by jim
3. 1,397 views
A./_\B.\_/ C.|_| The three tanks shown above are filled with water to an equal depth. All the tanks have an equal height. Tank A
1. 5 answers
2. asked by Sasha
3. 1,380 views
For A+2B <-> 2C and Kc = 2.13For 2C <-> D and Kc = 0.254 Calculate the value of equilibrium contant for the reaction D <-> A+2B
1. 2 answers
2. asked by Tracy
3. 1,376 views
Define the following terms.....Patriarchy,Social Norm,Gender Roles,Gender Stereotypes,Gender Equality.
1. 1 answer
2. asked by Bongani
3. 1,351 views
Hank needs 3 quartes to play one video game each time. If he has 14 quarters, how many times can he play? Explain.
1. 6 answers
2. asked by consquela
3. 1,343 views
A child is splaying with a toy aero plane. the aero plane is flying with velocity (6i + 2j)m/s. A breeze begin to blow with
1. 1 answer
2. asked by Jat
3. 1,310 views
A particle is projected vertically upwards from ground level with an initial velocity of 34.94m/s. Neglecting air resistance,
1. 1 answer
2. asked by Annoymous
3. 1,303 views
A thin rod (length = 1.10 m) is oriented vertically, with its bottom end attached to the floor by means of a frictionless hinge.
1. 2 answers
2. asked by Angela
3. 1,302 views
Writeacher, I urgently need you to check these questions. Thank you.(I also included the answer, which you have already
1. 1 answer
2. asked by Henry
3. 1,283 views
A wooden pyramid, 12 inches tall, has a square base. A carpenter increases the dimensions of the wooden pyramid by a factor of 5
1. 1 answer
2. asked by Cindy
3. 1,279 views
What type of spectrum is produced by a hydrogen gas when a high potential difference is applied to it?a visible spectrum
1. 2 answers
2. asked by Bunny
3. 1,264 views
Prove cos^2t+4cost+4/cost+2=2sect+1/sect
1. 0 answers
2. asked by Katie
3. 1,257 views
A weight attached to a spring is pulled down so that it is 10 cm from the floor and is released so that it bounces up and down.
1. 1 answer
2. asked by Safaa
3. 1,246 views
A singly charged ion of unknown mass moves in a circle of radius 13.5 cm in a magnetic field of 2.9 T. The ion was accelerated
1. 2 answers
2. asked by Anonymous
3. 1,242 views
A light ray in air is incident on a water surface at a 44° angle of incidence. Find each of the following angles.(b) the angle
1. 1 answer
2. asked by DCM
3. 1,241 views
Three blocks are connected on the table as shown below. The coefficient of kinetic friction between the block of mass m2 and the
1. 0 answers
2. asked by Anonymous
3. 1,228 views
Suppose that you're facing a straight current-carrying conductor, and the current is flowing toward you. The lines of magnetic
1. 1 answer
2. asked by physical science
3. 1,205 views
An amusement park has 2 roller coasters, a red one and a blue one. The first hill on the red roller coaster drops 10 meters. The
1. 1 answer
2. asked by Gabby ( 5 grade)
3. 1,204 views
a construction wo4rker uses a board and log as a lever to lift a heavy rock. If the input arm is 3 meters long and the output
1. 1 answer
2. asked by Kayleigh
3. 1,203 views
1. As a research chimst, you are intrested in studying the extent and type of interactions in aqueous salt solution. As part of
1. 1 answer
2. asked by Liz
3. 1,199 views
The sum of a number and 20 times its reciprocal is 9. Find the number(s).Please show working
1. 4 answers
2. asked by JIM
3. 1,195 views
Mr lopez is putting a fence around his vegetable garden the garden is shaped like a rectangle. the larger sides are 14 feet
1. 2 answers
2. asked by luz
3. 1,174 views
What better time to kiss the Blarney Stone than March! Help your readers plan a trip to Ireland by writing a travel article with
1. 3 answers
2. asked by Colton
3. 1,170 views
a graphic source is an image that help you understand what you read. common graphic source include charts, graphs,and diagrams.s
1. 5 answers
2. asked by dw
3. 1,168 views
◦Summarize what you learned in this Orientation Workshop.◦How will you apply what you learned in this Orientation Workshop
1. 1 answer
2. asked by Anonymous
3. 1,155 views
I would like to learn more about having "undue confidence" by creating examples. I understand that this term is related to
1. 2 answers
2. asked by Alex L.
3. 1,153 views
Consider the Sun to be at the origin of an xy-coordinate system. A telescope spots an asteroid in the xy-plane at a position
1. 6 answers
2. asked by sana
3. 1,148 views
Which of the following would be the most sigificant between mitosis and meiosis?A. Chromosomes are duplicated before mitosis B.
1. 1 answer
2. asked by KC
3. 1,121 views
Atop a cliff, a projectile is fired horizontally with an initial speed of 10 m/s. Neglecting air drag, what is its speed 1
1. 1 answer
2. asked by jim
3. 1,120 views
In 5 min, Peter completed 2 math problems. Yvonne says he did 3/5 of a problem each minute. Is she correct? Explain. Sorry I
1. 1 answer
2. asked by consquela
3. 1,118 views
A student opens a mathematics book to two facing pages. The product of the page number is 2352. Find the page numbers.The first
1. 7 answers
2. asked by Mary
3. 1,114 views
Determine the point on the curve y^2=4x that is closest to the point (1,0)a) (0,0) b) (1,2) c) (0.5,sqrt of 2)
1. 1 answer
2. asked by Jessica
3. 1,114 views
A solution containing Pb2+ and a solution containing IO3- are poured together and quickly mixed. After mixing, the solution
1. 1 answer
2. asked by Tanner
3. 1,101 views
Find the length of side b to the nearest whole number if side a =105, angle A = 65 degrees, and angle B = 37 degree.
1. 1 answer
2. asked by terry
3. 1,094 views
A car is coasting backwards down a hill at -5.0 m/s when the driver gets the engine started. After 4 seconds, the car is moving
1. 1 answer
2. asked by Paigeielynn
3. 1,092 views
Simplify the following:1) 32^1.2 2) (-216)^(-2/3) 3) -(-27)^(-4/3) Note: 32^1.2 is 32 raised to the 1.2 power
1. 1 answer
2. asked by Cheyanne
3. 1,049 views
had a balance of $2,539.78 in her savings account. She withdrew $150.00 and the teller credited her account with $6.19. What is
1. 1 answer
2. asked by jimmo
3. 1,044 views
Calculate the pH of a 5.90 10-3 M solution of H2SO4I have tried doing this as pH=-log[H+] and also by multiplying the Molarity
1. 2 answers
2. asked by Ashley
3. 1,043 views
Calculate the [H+], [OH ‾ ], and the pH of 0.16 M solutions of:hydroxylamine (HONH2, Kb = 1.1 10-8)
1. 1 answer
2. asked by Chris
3. 1,039 views
power supply has an open-circuit voltage of 39.0 V and an internal resistance of 2.00 Ù. It is used to charge two storage
1. 1 answer
2. asked by Anonymous
3. 1,036 views
I had to make a graph using lnK vs 1/T and find the slope. The slope was -1.23e4 and now I have to find Ea.Do I divide the slope
1. 3 answers
2. asked by Hannah
3. 1,030 views
TWO BLOCKS ARE CONNECTED BY A LIGHT STRING THAT PASSES OVER A FRICTIONLESS PULLEY AS SHOWN IN THE DIAGRAM. THE COEFFICIENT OF
1. 0 answers
2. asked by Anonymous
3. 1,026 views
A spotlight on a boat is y = 2.6 m above the water, and the light strikes the water at a point that is x = 8.6 m horizontally
1. 1 answer
2. asked by DCM
3. 1,019 views
A group of economics students gathered to study for a test on the money and banking system in the U.S. During a fast and furious
1. 0 answers
2. asked by Anonymous
3. 1,015 views
Show that the equation x^4 + 4x + c = 0 has at most two real roots.I believe we're supposed to prove this by proof of
1. 0 answers
2. asked by Emily
3. 1,014 views
1.Determine the maximum value of the function f(x)= 5^x -x^5 on the interval 0≤x≤≤2.2. Determine the minimum value of the
1. 1 answer
2. asked by Jessica
3. 1,010 views
Mr. Smith built a fence around a piece of land he wons. The piece of land is 30 yards long and 12 yards wide. How may feet of
1. 1 answer
2. asked by Adam
3. 1,001 views
Ryan wants to use 22 feet of fence to surround a section of grass for his dog to play in. He wants the area of this section of
1. 2 answers
2. asked by g
3. 987 views
i doing mobile (toy thing) for story sound of hollyhock. it have three string and each string be on different theme. one theme
1. 4 answers
2. asked by Mohammad
3. 982 views
Suppose your tile company spends $ 195 each month, regardless of how many tiles are purchased as supplies. How much do you spend
1. 0 answers
2. asked by Fred
3. 972 views
Your apartment's monthly rent was $300 last year. This year it is $350. What is the rate of inflation, to the nearest tenth
1. 1 answer
2. asked by Cosumer math
3. 967 views
f the distance the car traveled after applying the brakes equals 20 feet, what does that mean to the officer investigating the
1. 0 answers
2. asked by alyssa
3. 961 views

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