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2011
April

Questions Asked on April 14, 2011

You are designing a rectangular playground. On your scale drawing, the vertices of the rectangle are (10, –9), (10, –3), and
1. 32 answers
2. asked by David
3. 5,103 views
Thymol blue in its acid range is not a suitable indicator for the titration of HCl by NaOH(aq) . Suppose that a student uses
1. 1 answer
2. asked by sk1227
3. 4,379 views
How many isomers does bromoethane (C2H5Br)??
1. 2 answers
2. asked by Danielle
3. 3,540 views
How many moles of silver nitrate are needed to produce 6.75 moles of copper nitrate (CU(NO3)2) upon reaction with excess copper
1. 2 answers
2. asked by Jane
3. 3,518 views
Assuming that the volumes are additive, what volume of water must be added to 35.0mL of 23.0 M HCl to make a solution which is
1. 2 answers
2. asked by Denise
3. 3,381 views
Would my calculated molarity of HOAc in vinegar be too high, low, or unchanged ifa) i forgot to rinse wet buret with vinegar
1. 1 answer
2. asked by Matty
3. 3,106 views
I don't know how to explain or if Ive got my homework answer correct. The question is: A patient on dialysis has a high level of
1. 1 answer
2. asked by Connie
3. 2,924 views
The indicator methyl red has a pKhln=4.95 . It changes from red to yellow over the pH range from 4.4 to 6.2.If the indicator is
1. 1 answer
2. asked by Carmel R.
3. 2,449 views
The measures of two sides of a parallelagram are 28 in and 42 in. If the longer diagonal has measure 58 in, find the measures of
1. 1 answer
2. asked by Kaylee
3. 2,282 views
How do I say:1. I wake up at 6:00 2. I eat breakfast at 6:30 3. I go to school at 8:15 4. I use a car 5. I have lunch at 1:05 6.
1. 2 answers
2. asked by Caity
3. 2,127 views
if 130 g of KNO3 are added to 100 g of water at 40 degrees Celsius.How many grams do not dissolve?
1. 4 answers
2. asked by Tay
3. 1,982 views
In 1808, John Dalton wrote his atomic theory of matter. The following is a list of points from that theory. If it is still
1. 2 answers
2. asked by Andy
3. 1,977 views
you deposit $1000 at 3% per year.what is the balance at the end of one year,and what is the annual yield,if the interest.Please
1. 5 answers
2. asked by Mike
3. 1,898 views
the area of a rectangle is 100 square inches. the perimeter of the rectangle is 40 inches. a second rectangle has the same area
1. 2 answers
2. asked by Anonymous
3. 1,893 views
A teacher prepares a test. She gives 5 objective type questions out of which 4 have to be answered. Find the total ways in which
1. 1 answer
2. asked by michele
3. 1,802 views
which of the following statements about risk management is true?a. risk management is unique to the health care industry b. risk
1. 1 answer
2. asked by sarah
3. 1,769 views
A trapeze artist weighs 8.00 x 10^2 N. The artist momentarily held to one side of a swing by a partner so that both of the swing
1. 1 answer
2. asked by Becky
3. 1,701 views
In one trial of an investigation 50.0 mL of HCl(aq) of an unknown concentration is Tiresias with 0.10M NaOH (aq). During the
1. 1 answer
2. asked by Kelly
3. 1,661 views
Here is another writing prompt which basically focuses on the Passe Compose. Using the irregular verbs --Avoir, Etre.Here are
1. 1 answer
2. asked by Sydney
3. 1,624 views
Lactic acid, C3H6O3, is found in sour milk. A solution containing 1.00g NaC3H5O3 in 100.0mL of 0.0500M C3H6O3 has a pH= 4.11.Cal
1. 1 answer
2. asked by Lauren
3. 1,596 views
Suppose you have monohybrid pea plants in your garden and find that they produce round seeds to wrinkled seeds in the ratio of
1. 1 answer
2. asked by Joe Henly
3. 1,584 views
The solubility of Mg(OH)2 in a particular buffer solution is 0.66g/L .What must be the pH of the buffer solution?
1. 3 answers
2. asked by bitta
3. 1,580 views
Explain the importance of an organized new-product development process and illustrate how it might be used for.a. A new care
1. 1 answer
2. asked by ak
3. 1,557 views
A solution is 2.0×10−2M in both chromate and sulfate anions and . To this solution, 0.55M Pb(NO)3 is slowly added.What is
1. 2 answers
2. asked by nahang
3. 1,547 views
Light containing two different wavelengths passes through a diffraction grating with 1300 slits/cm. On a screen 16.0 cm from the
1. 1 answer
2. asked by Chelsea
3. 1,547 views
For a solution that is 0.280M HC3H5O2 (propionic acid, Ka= 1.3*10^-5) and 0.0894M HI , calculate the following:[H3O+] [OH-]
1. 1 answer
2. asked by Saunders
3. 1,536 views
How many moles of aluminum oxide can be produced from 12.8 moles of oxygen gas (O2) reacting with excess aluminun (Al)? useing
1. 1 answer
2. asked by Jane
3. 1,525 views
Which of the following statements are true?Fusion reactions result in nuclei with higher Z. To keep a nuclear power plant going,
1. 1 answer
2. asked by Grace
3. 1,510 views
A good technique to prevent children from talking to you while you're observing is toA. sit far away. B. avoid eye contact. C.
1. 1 answer
2. asked by Anonymous
3. 1,462 views
The bacteria in a 8-liter container double every 2 minutes. After 55 minutes the container is full. How long did it take to fill
1. 1 answer
2. asked by Josh
3. 1,432 views
When preparing an environment for school-aged children, the caregiver should ensure that theA. environment resembles their
1. 4 answers
2. asked by brandy
3. 1,369 views
How many slices of pizza must you eat to walk for 1.0 h at a speed of 5.0 km/h? (Assume your mass is 68 kg).Our book provides:
1. 1 answer
2. asked by Kirsten
3. 1,352 views
Can we then say He may have come yesterday or just He might have come yesterday? Can we use may in the past tense or not?
1. 3 answers
2. asked by Mark
3. 1,292 views
PLEASE HELPBy applying the various principles, draw a cross section of an area in which the following sequences of events
1. 1 answer
2. asked by angel
3. 1,291 views
An electron is accelerated by a 6.4 kV potential difference. The charge on an electron is 1.60218 × 10^−19 C and its mass is
1. 2 answers
2. asked by cr
3. 1,253 views
Write a quadratic equation having the given solutions 14 and -9
1. 1 answer
2. asked by carole
3. 1,240 views
How many grams of water will be produced if 32.0 g of nitrous oxide are also produced in the reaction? useing this equation:NH4N
1. 1 answer
2. asked by Jane
3. 1,230 views
Manuel wants to calculate how many miles his farthers car travels on one gallon of gas. He knows that on a fu 15- gallon tank of
1. 2 answers
2. asked by Elizabeth
3. 1,223 views
A. How many protons are in one atom of fluorine - 19?B. How many neutrons are in one atom of potassium - 39? C. How many
1. 1 answer
2. asked by Anne
3. 1,185 views
Kohers Inc is considering a leasing arrangement to finance some manufacturing tools that it needs for the next 3 years. The
1. 1 answer
2. asked by Nick
3. 1,166 views
A hall 100 feet in length is to be designed as a whispering gallery. If the foci are located 21 feet from the center, how high
1. 1 answer
2. asked by Enoch
3. 1,151 views
A particle with a charge of -60.0 nC is placed at the center of a nonconducting spherical shell of inner radius 20.0 cm and
1. 2 answers
2. asked by Danielle
3. 1,145 views
Which is a valid conclusion that can be drawn from the information in the chart?
1. 2 answers
2. asked by cici
3. 1,133 views
For a solution that is 0.280 M HC3H5O2 (propanoic acid Ka=1.3*10^-5) and 0.0894 M HI, calculate the following. Concentration of
1. 1 answer
2. asked by Joe
3. 1,106 views
Name 5 of choices of cities in regions.Winnipeg --The plains Charlottetown --Atlantic Canada (Is there another name for this?)
1. 3 answers
2. asked by Anonymous
3. 1,035 views
If you forget to add phenolphthalein solution to a vinegar solution(after adding NaOH solution), how might you salvage the
1. 1 answer
2. asked by Robert
3. 1,031 views
Ray makes an array that has 4 rows of 4 counters. He wants to make two more arreys using the same number of counters. He wants
1. 1 answer
2. asked by Bell
3. 1,027 views
What mass of baking soda (NaHCO3) would be required to neutralize 10.00mL of 12.1M muriatic acid remaining in a empty water
1. 1 answer
2. asked by Mateo
3. 1,016 views
What is the final volume of 945 mL of neon gas at 174°C if the gas is cooled to 58.5°C? Assume the pressure and the amount of
1. 1 answer
2. asked by Mary
3. 1,002 views
Discuss how the rise of capitalism led to the development of communism.I put: • Capitalism was where individuals and business
1. 1 answer
2. asked by Anonymous
3. 999 views
A gift store stocks baseball hats in red or green colors. Of the 35 hats on display on a given day, 20 are green. As well, 18 of
1. 3 answers
2. asked by ann
3. 998 views
A bomber is flying horizontally over level terrain at a speed of 250 m/s relative to the ground and at an altitude of 3.20 km.Th
1. 0 answers
2. asked by Chi
3. 980 views
Hi Guys!Okay sweet, here goes. I'm supposed to be keeping a research journal of my research. In it I like examine my research
1. 0 answers
2. asked by Tasha
3. 973 views
Iron metal is formed during the reduction of iron(III) oxide:Fe2O3 + 3CO 2Fe + 3CO2 When 24.3 kg of Fe2O3 react with 14.6 kg of
1. 2 answers
2. asked by komal
3. 957 views
The volumes of two similar figures are given. The surface area of the smaller figure is given. Find the surface area of the
1. 1 answer
2. asked by pj
3. 951 views
after your holiday you have come home and decided that you are going to open up your own business.In order to advertise you put
1. 3 answers
2. asked by Dwight
3. 945 views
CH3CO2H: 0.109M & 20mlNaOH : 0.109M& 10ml H20:10ml Buffer Problem, when I solve it the ratio becomes the same and the pH is the
1. 1 answer
2. asked by Nicole
3. 945 views
there are four tiles in a bag. two are yellow one is green and one is blue. how many possible out comes are there when removing
1. 1 answer
2. asked by lindsey
3. 937 views
both patricians and plebian men were roman what?
1. 1 answer
2. asked by aname
3. 931 views
Bridget has a limited income and consumes only wine and cheese; her current consumption choice is four bottles of wine and 10
1. 0 answers
2. asked by Gar
3. 916 views
HOW DOES A BUSINESS GO ABOUT CHOOSING THE RIGHT TENDER
1. 0 answers
2. asked by MA;IBONGWE
3. 905 views
I need help on a few of these.A. How many protons are in one atom of fluorine - 19? B. How many neutrons are in one atom of
1. 1 answer
2. asked by mary
3. 902 views
a mass of density bottle is 20g,when empty,70g when full of water and 55g when full of a second liquid.calculate the density of
1. 4 answers
2. asked by frank
3. 877 views
How does the CVS, urinary and respiratory systems work together to maintain homeostasis?
1. 0 answers
2. asked by Natalie
3. 860 views
i need the answer to finding the number of three letter permutations of the letters l,s,u,v,r
1. 1 answer
2. asked by Rory
3. 833 views
In this sentence:I held it back and managed a squeaky "yes" in response. How would you correctly punctuate the yes part?
1. 4 answers
2. asked by Erin
3. 830 views
There are 30 students in a math class. 12 belongs to the computer club and 8 belongs to the photograph club. three belongs to
1. 2 answers
2. asked by Duce
3. 808 views
I have answer the question can someone review it and tell me how it sounds or if I need to add somethingPost your response to
1. 5 answers
2. asked by girl
3. 806 views
Consider a mole of CO2 and a mole of N2O each at STP. Which of the following statements are true? Check all that apply.~Both
1. 1 answer
2. asked by Laura
3. 795 views
A faulty model rocket moves in the xy-plane (the positive y-direction is vertically upward). The rocket's acceleration has
1. 0 answers
2. asked by Allison
3. 783 views
The teacher will show the students a picture of a bess beetle with all the parts labeled.Does bess need to be Bess? I used bess
1. 7 answers
2. asked by Pete
3. 780 views
compound and interest Using the below values please calculate the amount accumulated (future value) *Initial principal=$2000
1. 1 answer
2. asked by George
3. 761 views
The density of gold is 19 times that of water. If you take a gold crown weighing 24 N and submerge it in water, how much upward
1. 1 answer
2. asked by ann
3. 748 views
Decide if each of the following principles were first discovered during Thompson's cathode ray tube experiments, Rutherford's
1. 4 answers
2. asked by chris
3. 744 views
Write and simplify the difference quotient for the function b(t)= 3t^2-4t+5 over the interval [7,7+h]
1. 1 answer
2. asked by katrina
3. 722 views
if the teacher says it is safe to smell a chemical, outlinethe technique you should use
1. 2 answers
2. asked by dhruv
3. 719 views
1. _______ (on sundays), mes parents _______(aller) musee.2. _______ (on Fridays) , ma mere _______ (aller) Banque
1. 4 answers
2. asked by mel
3. 718 views
Mr. Forrester has a swimming pool that measures 3 1/3 yards by 8 yards. If the deck around the pool is 2 2/3 yards wide, what is
1. 1 answer
2. asked by Marie
3. 716 views
Two identical conducting spheres each having a radius of 0.500 cm are connected by a light 1.90 m long conducting wire. A charge
1. 1 answer
2. asked by Marie
3. 716 views
A proton is moving in a circular orbit of radius 11.8 cm in a uniform magnetic field of magnitude 0.232 T directed perpendicular
1. 2 answers
2. asked by cr
3. 711 views
WHO MADE THESE ATOMIC DISCOVERIES?An atom has a nucleus that is very small In a reaction, the mass of the products must equal
1. 3 answers
2. asked by Sal
3. 704 views
What are two forces that you believe shape the relationship between business and society?
1. 0 answers
2. asked by mary
3. 692 views
Can anybody tell me step wise step how to solve this quadratic equation?x^3-3x^2+4=0 Please tell me step wise step as i haven't
1. 4 answers
2. asked by Akash
3. 686 views
She added 4, multiplied the sum by -5, and subtracted 12. She then doubled the result and got -34. What number did Christa
1. 2 answers
2. asked by Jay
3. 685 views
A 20 kg object falls from a height of 30 meters. How many joules of kinetic energy will the object have just before it hits the
1. 2 answers
2. asked by luis brito
3. 681 views
14, -9 write a quadratic equation with these solutions. With 1 being there greatest common factor
1. 1 answer
2. asked by carole
3. 681 views
Microwaves of wavelength 4.50 cm enter a long, narrow window in a building that is otherwise essentially opaque to the incoming
1. 1 answer
2. asked by Stefan
3. 678 views
Use the equation to determine what volume of nitrous oxide can be produced from the decomposition of o.55 moles of ammonium
1. 1 answer
2. asked by Jane
3. 671 views
How much energy is needed to raise 20.0g H2O from 10.0oC to 75.0oC. The specific heat of water is 4.18 J/gC.
1. 1 answer
2. asked by Qrishaa
3. 661 views
Can you please check these sentences for me? Thank you very much.1)Another important theme is that of equivocation.The witches
1. 2 answers
2. asked by Mike1
3. 660 views
specialized cells in animals are all descended from a single ancestor cell.How are the specialized and the nonspecialized cells
1. 0 answers
2. asked by maggie
3. 647 views
A hiker sees a lightning flash, 13.0 s later he hears the sound of the thunder.Recalling from his study of physics that the
1. 1 answer
2. asked by Annie (Please Help)
3. 646 views
For the given linear prgramming problem, write down the objective function and the constraints.Kris is trying to make his
1. 1 answer
2. asked by fakaapo
3. 643 views
I need to make the below sentences parallel.To succeed in the new economy, workers will have to learn throughout their careers,
1. 1 answer
2. asked by Laura
3. 642 views
I need to know how to right a net ionic equation for the following chemical reaction: 5 H2C2O4 + 3 H2SO4 + 2 KMnO4 = K2SO4 + 2
1. 0 answers
2. asked by Matthew
3. 638 views
The pressure of a gas has increased from 300 kPa to 600 kPa. The volume of the container has not changed, and the number of
1. 1 answer
2. asked by Anonymous
3. 637 views
A 1 pound bag of candy containing 502 piecescost 16.8 cents per ounce. What is the cost of 1 piece of candy?
1. 4 answers
2. asked by Philip
3. 636 views
A good technique to prevent children from talking to you while you're observing them is to what?1. Avoid eye contact 2. Sit far
1. 1 answer
2. asked by Brooke
3. 633 views
A can of worms for fishing costs $2.60. There are 20 worms in a can. What is the cost per worm? At this rate, how much would 26
1. 2 answers
2. asked by Jon
3. 628 views
An unknown was prepared with the concentration of 0.000630 M. A Beer's Law plot was prepared using the absorbance values from
1. 2 answers
2. asked by ChemLover
3. 628 views

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