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Questions Asked on March 19, 2012

Consider the following cell:Pt|H2(g, 0.460 atm)|H (aq, ? M)||Ag (aq, 1.00 M)|Ag(s) If the measured cell potential is 1.00 V at
1. 3 answers
2. asked by Daisy
3. 9,008 views
A 4.0 kg object is lifted 1.5 m. (a) how much work is done against the earth's gravity ? (b) repeat if the object is lowered
1. 6 answers
2. asked by jack
3. 7,894 views
Your fixed expenses are $1,035.65/month and are 36% of your realized income. Use proportions to compute the realized income on
1. 10 answers
2. asked by Cindy
3. 6,216 views
I really need help pleaseYour primary job’s gross income is $3,500.00/month, and your second job’s realized income is
1. 5 answers
2. asked by Cindy
3. 5,693 views
Determine whether of not each compound will be more soluble in acidic soln than in pure water. Explain.A). Hg2Br2 B). Mg(OH)2
1. 2 answers
2. asked by ALISON
3. 4,495 views
A)In a chemical reaction two gases combine to form a solid. What do you expect for the sign of ΔS?B) For which of the following
1. 4 answers
2. asked by HELP PLEASE
3. 4,147 views
Acid spills are often neutralized with sodium carbonate. For exampleNa2CO3 (s) + H2SO4 (aq)  Na2SO4 (aq) + CO2 (g) + H2O (l)
1. 5 answers
2. asked by Elisa
3. 3,678 views
Find the area of the regular polygon with the given radius. The radius of the square is 6 cm. area= apothem x perimeter/ 2
1. 3 answers
2. asked by Anonymous
3. 3,654 views
John runs a computer software store. Yesterday he counted 127 people whwo walked by his store, 58 of whom came into the store.
1. 2 answers
2. asked by Anonymous
3. 3,557 views
Please help:The length of a rectangle is 5m greater than twice its width, and its area is 33m^2 (the m is squared). Find the
1. 1 answer
2. asked by Squid
3. 3,242 views
Ammonia, NH3, can be made by reacting nitrogen with hydrogen.N2 + 3H2 = 2NH3 How many moles of NH3 can be made if 7.5 moles of
1. 2 answers
2. asked by Britt
3. 3,133 views
An open rectangular box having a volume of 256 is to be constructed from a tin sheet.Find the dimensions of such a box if the
1. 3 answers
2. asked by help please.
3. 3,005 views
In the 1970s, when lead was widely used in "ethyl" gasoline, the blood level of the average American contained 0.25 ppm lead.
1. 3 answers
2. asked by Hannah
3. 2,984 views
how do you find the height of an area of 245 square inches and a base of 14 inches.
1. 11 answers
2. asked by justin
3. 2,869 views
The rate at which an amount of a radioactive substance decays is modeled by the differential equation dA/dt = kA, where A is the
1. 1 answer
2. asked by ronnieday
3. 2,647 views
water has one of the largest specific heats of any substance. why is it important for human body?
1. 1 answer
2. asked by doreen
3. 2,628 views
a 0.250 mol sample of HX is dissolved in enough water to form 655mL of solution. If the pH of the solution is 3.44, what is the
1. 2 answers
2. asked by ken
3. 2,550 views
In a .25 M solution, a weak acid is 3.0% dissociated.A. calculate the pH of the solution B. calculate the Ka of the acid Please
1. 2 answers
2. asked by anonymous
3. 2,300 views
how do you find the height of a parallelogram with an area of 224 square meters and a base of 16 meters.
1. 3 answers
2. asked by carol
3. 2,038 views
Write a balanced reaction for the formation of Fe2O3 (s)?????
1. 1 answer
2. asked by Kayla
3. 1,892 views
What would be the force required to push a 100-pound object along a ramp that is inclined 10 degrees with the horizontal?
1. 2 answers
2. asked by greenburrow
3. 1,884 views
A dynamic equilibrium, Ag2CO3(s) <=> 2Ag+(ag) , CO3 2- (ag), what affect does the addition af HCl have on the system? Does it
1. 1 answer
2. asked by Jen
3. 1,830 views
A camera flashtube requires 5.0J of energy per flash. The flash duration is 1.0 ms. (a) what power does the flashtube use while
1. 1 answer
2. asked by Britanee
3. 1,748 views
What is the electron configuration for the transition metal ion(s) in each of the following compounds?Na2[TaF7] Cant seem to
1. 1 answer
2. asked by Sarah
3. 1,738 views
Consider an economy with a constant nominal money supply, a constant level of real output Y = 100, and a constant real interest
1. 1 answer
2. asked by Sally
3. 1,683 views
Find all solutions to the equation in the interval [0, 2pi)cos4x-cos2x=0 So,this is what i've done so far: cos4x-cos2x=0
1. 1 answer
2. asked by Maria
3. 1,641 views
The number of moles of hydrogen gas present in a 1500 mL container at 298 K and 2.0 atm pressure is?
1. 2 answers
2. asked by Gladys
3. 1,603 views
John kept track of all his math and reading test scores throughout the year as shown in the table below.Test 1:90math 80reading
1. 4 answers
2. asked by running.from.myself
3. 1,573 views
three circles of radie 3,4, and 5 units respectively are tangent to each other eternaly. find the angle of the triangle formed
1. 3 answers
2. asked by alec salido
3. 1,564 views
Suppose that, for students who are enrolled in college algebra, 73 percent are freshmen, 48 percent are female, and 31 percent
1. 1 answer
2. asked by Julie
3. 1,516 views
Why would the presence of crystals of sample at the starting line cause streaking on a TLC plate?
1. 1 answer
2. asked by Sally
3. 1,465 views
Two blocks are connected by a light string that passes over a frictionless pulley as in the figure below. The system is released
1. 1 answer
2. asked by Lilly
3. 1,455 views
At 25 degrees Celsius, the base ionization constant for NH3 is 1.8 x ^-5. Determine the percentage ionization of a M solution of
1. 3 answers
2. asked by Caitlin
3. 1,424 views
A 4.00-m length of light nylon cord is wound around a uniform cylindrical spool of radius 0.500 m and mass 1.00 kg. The spool is
1. 1 answer
2. asked by Mike
3. 1,378 views
A sample of 352 subscribers to Wired magazine shows the mean time spent using the Internet is 13.4 hours per week, with a sample
1. 2 answers
2. asked by Annette
3. 1,377 views
1. The formula V=lwh is used to find the volume of rectangular prisms. Which equation solves for w?a. w=V-l-h b. w=Vlh c. w=lh/V
1. 1 answer
2. asked by Yaya
3. 1,365 views
A girl ties a toy airplane to the end of a string and swings it around her head. The plane's average angular speed is 2.2 rad/s.
1. 2 answers
2. asked by Anonymous
3. 1,339 views
The point of intersection of the graphs of the equations of the systemAx – 4y = 9 4x + By = –1 is (–1, –3). Explain how
1. 2 answers
2. asked by Algebra PLEASE HELP!!
3. 1,304 views
The circumference of a sphere was measured to be 74 cm with a possible error of 0.5 cm.(a) Use differentials to estimate the
1. 1 answer
2. asked by William
3. 1,275 views
Which of the following would you add to a mixture of CaCO3(s) and its saturated solution to increase the molar solubility of
1. 1 answer
2. asked by Justin
3. 1,256 views
Caleb planted a garden in a rectangular shape. The garden is 6 feet and 14 feet long. How many rows, 18 inches apart, did he
1. 1 answer
2. asked by t.q.
3. 1,231 views
A particle of mass 4kg is suspended from a point A on a vertical wall by means of a light inextensible string of length 130cm.A
1. 4 answers
2. asked by Tony
3. 1,222 views
if sin theta equals 3/7, what is tan theta?
1. 2 answers
2. asked by Anonymous
3. 1,220 views
Four research participants take a test of manual dexterity (high scores mean better dexterity) and an anxiety test (high scores
1. 2 answers
2. asked by Dawm
3. 1,192 views
Internal and external Tratis of any charter u can think of? Please help me. Your help is needed...
1. 1 answer
2. asked by Trevor
3. 1,180 views
What pH buffer solution is needed to give a Ni2+ concentration of 2.5 x 10-3M in equilibrium with solid nickel hydroxide
1. 1 answer
2. asked by Kate
3. 1,163 views
i need to write an essay explaining how purpose, tone, audience, and content impact academic writing, and i am having trouble
1. 1 answer
2. asked by mrzmerced1
3. 1,158 views
The table shows the times a train left Austin and arrived in San Antonio on 5 nights last week.Mon 6:30pm left 7:22pm arrived
1. 1 answer
2. asked by Derrick
3. 1,146 views
Need a little bit of help here.1. Select the correct verb form: A) The box of medical books was heavy. B) The box of medical
1. 3 answers
2. asked by Jenny
3. 1,132 views
A four-digit number is selected at random. What is the probability that its ones place is greater than its tens place, its tens
1. 0 answers
2. asked by Yuan
3. 1,095 views
Someone please answer my question below in AP CHEMISTRY.
1. 1 answer
2. asked by HELP PLEASE
3. 1,085 views
On May 26, 2007, Jamal purchased machinery for $30,000 to be used in his business. He did not elect to expense the equipment
1. 0 answers
2. asked by Billy
3. 1,067 views
write the equilibrium-constant expression and calculate the value of the equilibrium constant for each of the following
1. 3 answers
2. asked by DAN
3. 1,031 views
Let f (x) = x^2 + 5x-14. Find the open intervals on which f is concave up (down). Then determine the xcoordinates of all
1. 1 answer
2. asked by Mandy
3. 1,018 views
Carlos counted all of the tickets that were taken at a school carnival. Each time he counted 10 tickets, he placed a tally on
1. 2 answers
2. asked by Derrick
3. 1,012 views
Traits like human height and skin color shows a wide range of phenotypes, as opposed to just two ot three. From the standpoints
1. 1 answer
2. asked by tim
3. 999 views
On July 15, 2009, Travis purchased some office furniture for $20,000 to be used in his business. He did not elect to expense the
1. 1 answer
2. asked by Billy
3. 999 views
locks A, B, C are placed in the adjacent figure and connected by ropes of neglible mass. Both A and B weigh w = 25.0 N each and
1. 0 answers
2. asked by Anonymous
3. 999 views
A dog sits 2.1 m from the center of a merry-go-round. If the dog undergoes a 1.4 m/s2 centripetal acceleration, what is the
1. 1 answer
2. asked by Anonymous
3. 997 views
Find the area of the regular polygon with the given radius. Radius: 6cm. Area= apothem x perimeter/ 2
1. 2 answers
2. asked by Ashley
3. 996 views
What types of issues might indicate a need for training? From what sources would these issues be identified? If you were a
1. 1 answer
2. asked by Kayla
3. 974 views
Mrs. Sue please help!I really need some help on these questions Please! I am having a very tough time. I have tried to answer to
1. 0 answers
2. asked by Ashley
3. 963 views
how do you find the height of a triangle with an area of 245 square inches and a base of 14 inches.
1. 3 answers
2. asked by justin
3. 960 views
Find the area of the regular polygon with the given radius. The radius of the square is 6 cm. area= apothem x perimeter/ 2
1. 1 answer
2. asked by Anonymous
3. 960 views
I balancedLi(s) + Cl2(g)= LiCl(s) to 2Li(s) + Cl2(g)= 2LiCl(s) Now the question is, if you have 39.8g Li, how many moles of LiCl
1. 2 answers
2. asked by mel
3. 954 views
a 256 mL sample of an unknown gas was collected over water at 23 degrre celsius and 750 mmHg. the gas has a mass of 0.80 grams.
1. 1 answer
2. asked by Jesse
3. 952 views
simplify using the exponent law. express your answer using positive exponents only.(x^2)^3(2x^3)^-3/(4x)^2
1. 2 answers
2. asked by Hanu
3. 938 views
The single most important factor in determining the quality of an educational program is the: A. talk to parents/guardians about
1. 1 answer
2. asked by Donna
3. 931 views
the question might sound dumb, but can anyone check to see if the sentence is correct:It's(form) due till May 1st.
1. 1 answer
2. asked by random grammar
3. 930 views
A beetle sits at the top of a bicycle wheel and flies away just before it would be squashed. Assuming that the wheel turns
1. 0 answers
2. asked by Anonymous
3. 929 views
For this discussion use the "Critical Thinking Process" document to analyze the problem-solving the individuals may apply in the
1. 1 answer
2. asked by chase
3. 922 views
An archer shoots an arrow into a piece of wood. The arrow is traveling at 120 km/h when it strikes the wood. The arrow
1. 1 answer
2. asked by Kim
3. 918 views
Topic:machine,a block and tackle of 6 pulleys is used to raise a load of 300N steadily through a height of 30m.if the work done
1. 2 answers
2. asked by Chigozie
3. 912 views
F. Scott Fitzgerald dropped out of college to
1. 1 answer
2. asked by Anonymous
3. 906 views
1. Which one of the following is not a benefit to the employer when offering an ESOP? (Points : 1)maintains a stable work force
1. 0 answers
2. asked by MITCH
3. 905 views
Multiplying a vector by a scalar results in:a) a scalar b) a perpendicular vector c) a collinear vector c) a parallel scalar
1. 1 answer
2. asked by Jake
3. 901 views
The population of humorville is 8,500 people. In this town, jokes travel fast. In one hour, each person who hears a joke tells
1. 1 answer
2. asked by Erica
3. 898 views
plz answer my questiona river is 2 km wide and flows at 4km/h. a motorboat has a speed of 10 km/h in still water and heads out
1. 0 answers
2. asked by tarkan
3. 895 views
Consider the function f (x)=x1=5(x&#56256;&#56320;4). This functionhas two critical numbers A < B Find A and B For each of the
1. 0 answers
2. asked by Mandy
3. 884 views
a rectangular box has a volume of V(x)=x^3+13x^2+50x+56 cubic inches. The height of the box is x+7 inches. The width of the box
1. 2 answers
2. asked by Missy
3. 879 views
A pair of dice is cast. What is the probability that the sum of the numbers landing upwards is 8 if it is known that the two
1. 1 answer
2. asked by Anonymous
3. 871 views
corey's mother randomly placed four blocks labelled c, o , r ,e and y on a shelf. the probability that she placed them on a
1. 0 answers
2. asked by Kaleigh
3. 869 views
Why are icebergs in shipping lanes so hazardous?
1. 3 answers
2. asked by Astrid
3. 867 views
Explain why the addition method might be preformed over the substitution method for solving the system2x – 3y = 10 5x + 2y = 6
1. 3 answers
2. asked by Algebra PLEASE HELP!!
3. 860 views
The equilibrium constant Kc for the following reaction is equal to 0.20 at 250°C. Calculate the equilibrium constant Kp for the
1. 1 answer
2. asked by Raskin
3. 851 views
A student sets up two speakers spaced 2.5 meters apart, each playing the same tone of a single frequency. She stands at point P,
1. 2 answers
2. asked by elizabeth
3. 848 views
Please help me get started, i'm not asking for the answer, just some help!A gas occupies 340mL at 273 K and 610 torr. What final
1. 3 answers
2. asked by Desiree
3. 843 views
rectangular prism with base perimeter 30 cm, base area 50 cm^2, and height 150 cm.Choices are: A. 7,560 cm^2 B. 4,600 cm^2 C.
1. 1 answer
2. asked by Samantha
3. 834 views
The density of 18% nh4cl is 1.05 grams/ml. What mass of nh4cl is in 425 ml of the solution?
1. 1 answer
2. asked by Zack
3. 829 views
Determine the value of each of the following logarithmic expressions. Do not change bases.A) log8 4 <----- 8 is subscript b)log
1. 2 answers
2. asked by mark
3. 823 views
we are asked to write a 1 page report about how is fermented beverage made. my plan is to make report about fermented milk. i
1. 3 answers
2. asked by kuno
3. 803 views
I really need some help on these questions Please! I am having a very tough time. I have tried to answer to the best of my
1. 0 answers
2. asked by Ashley
3. 774 views
what is the function for input 3 and output 16?
1. 1 answer
2. asked by Anonymous
3. 765 views
Rank the following complex ions in order of increasing wavelength of light absorbed. (Use the appropriate <, =, or > symbol to
1. 1 answer
2. asked by Sarah
3. 756 views
The solubility of a substance is 12.0 g per 100.0 g of water at 60 C. How many grams of the substance can crystallize from a
1. 2 answers
2. asked by Stephanie
3. 748 views
The sum of two forces, one having a magni-tude of 2 N acting due west and other having a magnitude of 8 N acting due north is?
1. 1 answer
2. asked by annie
3. 740 views
Which situation would most likely be represented by a negative correlation: hours of practice and your golf score, hours of
1. 1 answer
2. asked by Caitlin
3. 739 views
if the class limit is 11-20 and the class boundary is 10.5-20.5,what is the class width?
1. 1 answer
2. asked by 2baba
3. 731 views
The top and bottom margins of a poster are 8 cmand the side margins are each 6 cm. If the area of printed material on the poster
1. 1 answer
2. asked by Mandy
3. 726 views
People had known how to make steel since ancient times, but many historians claim steel caused a second industrial revolution at
1. 3 answers
2. asked by Roxannedaly
3. 720 views

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