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2012
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Questions Asked on May 12, 2012

A Sample of gas originally at 25 degrees C and 1 atm pressure in a 2.5 L container is allowed to expand until the pressure is
1. 2 answers
2. asked by John
3. 14,753 views
A mixture of Xe, Kr, and Ar has a total pressure of 6.7 atm. What is the mole fraction of Kr if the partial pressures of XE and
1. 2 answers
2. asked by John
3. 10,151 views
Write the balanced chemical equation for each of these reactions. Include phases. When aqueous sodium hydroxide is added to a
1. 7 answers
2. asked by Sarah
3. 6,298 views
Write log'2' 8 = 3 in exponential form?
1. 4 answers
2. asked by Greg
3. 5,010 views
For the reaction below, Kp = 1.16 at 800.°C.CaCO3(s) CaO(s) + CO2(g) If a 25.0-g sample of CaCO3 is put into a 10.2-L container
1. 2 answers
2. asked by Andrew
3. 4,576 views
Bacteria grow in a nutrient solution at a rate proportional to the amount present. Initially, there are 250 strands of the
1. 3 answers
2. asked by gwapa
3. 3,403 views
write 0.000436 in scientific notationanswer 4.36 X 10^-4
1. 3 answers
2. asked by pls check
3. 2,502 views
a car is spinning at a rate of 4.3pi radians/s. how many rotations will it make in an hour?
1. 1 answer
2. asked by kerry
3. 2,502 views
Calculate the pH at the equivalence point for the titration of 0.180 M methylamine (CH3NH2) with 0.180 M HCl. The Kb of
1. 1 answer
2. asked by Sarah
3. 2,136 views
The electronegativities of the elements are H=2.1, O=3.5, F=4.0, S=2.5, Cl=3.0. Determine (calculate) the electronegativity
1. 2 answers
2. asked by Bran
3. 2,123 views
If two number cubes are tossed, what is the probability of getting a sum that is less than 6, given that 1 number cube shows a 3
1. 2 answers
2. asked by Ana
3. 1,930 views
the arc length and central angle of a circle are 10cm and 80degrees respectivly. what is the length of the radius?
1. 1 answer
2. asked by celina
3. 1,778 views
Is CF4 an example of a central atom with an expanded octet?
1. 1 answer
2. asked by John
3. 1,552 views
A 20.0-kg model plane flies horizontally at a constant speed of 12.2 m/s.(a) Calculate its kinetic energy. . J (b) The plane
1. 1 answer
2. asked by Brianna
3. 1,330 views
a pie is cut into 8 equel slices. if a person wants 0.75(pie sign) centimetre of crust, about how many pieces should they take?
1. 3 answers
2. asked by chris
3. 1,325 views
How would I find the sum of the geometric series given?1/5 - 1/25 + 1/125
1. 1 answer
2. asked by Greg
3. 1,304 views
Vector A has magnitude 37 units and direction, counterclockwise from east, of 12.9 degrees. What is the value of its x component
1. 1 answer
2. asked by Tanner
3. 1,289 views
which of the following is true regarding doing online search for informationA. If your search turns up no hits, you need to use
1. 3 answers
2. asked by Moha
3. 1,248 views
8. Compare the mean for the heights of males and the mean for the heights of females in these data. Compare the values and
1. 2 answers
2. asked by jeanne
3. 1,225 views
For this problem my equation is Y=70+110e^ktbut i keep getting it wrong any suggestions? A roasted turkey is taken from an oven
1. 0 answers
2. asked by someone
3. 1,140 views
A lamp connected to a battery lights up. If a second, identical lamp is connected to the battery in parallel, the current drawn
1. 1 answer
2. asked by matthew
3. 1,127 views
Writeacher, could you please check if everything is OK?Thank you very much. 1) My classmates always keep me from work (from the
1. 1 answer
2. asked by Mike
3. 1,082 views
using product rule, power rule, negative rule using scientific notation.5.4*10^6/2.7*10^4=5.4/2.7*10^6/10^4=2*10^2
1. 0 answers
2. asked by plz help
3. 1,075 views
Given a square, what is the locus of points equidistant from the sides?
1. 2 answers
2. asked by My Name Is Bob
3. 1,049 views
Which was not one of the causes of the Great Depression?(Points : 5) excessive income taxes speculative stock purchases risky
1. 2 answers
2. asked by ahmed
3. 989 views
When light of wavelength 391 nm falls on apotassium surface, electrons are emitted that have a maximum kinetic energy of 1.72
1. 2 answers
2. asked by Jason
3. 989 views
i need three project topics in physics. Help please
1. 2 answers
2. asked by Joanna
3. 952 views
A rectangular solid has a base area of 43.3 sq inches and a height of 50 inches a triangular prism has a base in the shape of an
1. 1 answer
2. asked by Joshua
3. 908 views
103. A billiard ball, aimed at a point A on the edge of the cushion of a horizontal billiard table, rolls along a line making 18
1. 0 answers
2. asked by apolonio
3. 904 views
Na (s) + 1/2F2 (g) = 2NaF (s)Are the reactants at higher or lower energy than the products and is the reaction endothermic or
1. 1 answer
2. asked by Bran
3. 899 views
The number of bacteria in a culture is modeled byn(t)=1710e071t (a) The initial number of bacteria is (b) The relative rate of
1. 1 answer
2. asked by someone
3. 896 views
Hello My teacher skipped over this and I have no clue how to do this or the equations. Help would be wonderful thank youIf 6000
1. 2 answers
2. asked by someone
3. 893 views
A 0.140-mole quantity of CoCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Co^2+ ions at
1. 1 answer
2. asked by Sarah
3. 868 views
CaC2 (s) + 2 H20 (g) -> Ca(OH)2 (s) + C2H2 (g)The complete reaction of 22.7 g of CaC2 requires consumption of ________g of H2O.
1. 1 answer
2. asked by John
3. 861 views
1-To determine the best place to begin your online research, you should firstA. identify keywords and search terms. B. formulate
1. 4 answers
2. asked by Moha
3. 792 views
A teaching method that uses computers to help children learn is called ?
1. 2 answers
2. asked by jennifer
3. 781 views
a pie is cut into 8 equel slices. if a person wants 0.75(pie sign) centimetre of crust, about how many pieces should they take?
1. 1 answer
2. asked by chris
3. 773 views
If the larger of two numbers is divided by the smaller, the quotient and the remainder are 2 each. If 5 times the smaller number
1. 1 answer
2. asked by Arshia
3. 759 views
I would greatly appreciate it if someone would please be kind enough to take the time and show me how to work these problems.
1. 1 answer
2. asked by Please help me
3. 755 views
a charged particle is in point (2, 3, 8) and has a charge Q1 = 5x10-10C. Another particle is at (5,7,0) and has a charge Q2 =
1. 4 answers
2. asked by Filip
3. 740 views
The electronegativities of the elements are H=2.1, O=3.5, F=4.0, S=2.5, Cl=3.0. Determine (calculate) the electronegativity
1. 1 answer
2. asked by Bran
3. 728 views
I just have a few questions.Ok so the main point of being a Art/Writing Therapist is ...... when you talk to teenagers, children
1. 3 answers
2. asked by Laruen
3. 727 views
A Sample of gas originally at 25 degrees C and 1 atm pressure in a 2.5 L container is allowed to expand until the pressure is
1. 1 answer
2. asked by John
3. 712 views
A brown-eyed man marries a blue-eyed woman and they have eight children, all with brown eyes. Can you be sure whether the man is
1. 1 answer
2. asked by Anonymous
3. 682 views
If 9.03 x 1021 molecules of a compound having general formula CnH2n+2 weigh 1.71g, what is the molar mass of the compound? Give
1. 1 answer
2. asked by Susan
3. 681 views
Hello. I'll be very grateful if you help me with a few questions.1)Would you use the article in the context: "he became
1. 2 answers
2. asked by Ilma
3. 667 views
1.On December 15, 2012, Pascal declared a cash dividend of $2.00 per share to stockholders of record on December 31. The
1. 0 answers
2. asked by ashley
3. 658 views
can anyone help me by finding which enzymes are present in carbohydrates?is it salivary amylase(tyalin)
1. 3 answers
2. asked by sandra
3. 651 views
Which is the standard form of the equation with p = 26, O=3pi/4 ?the O before the =3pi has a diagonal slash through it.
1. 1 answer
2. asked by kelsey
3. 638 views
A pair of masses are attached by a string that runs over a pulley. The larger mass is on a frictionless incline that makes an
1. 2 answers
2. asked by Jay
3. 626 views
A research center claims that 50% of people believe that drivers should be allowed to use cellular phones with hands free
1. 1 answer
2. asked by Amber
3. 625 views
Window glass formerly was made by gathering a lump of molten glass on the end of a hollow rod blowing it into the form of a
1. 0 answers
2. asked by sara
3. 615 views
In a raffle there are four winning tickets from 12, What is the probability from six tickets there are two winners?Thank you in
1. 1 answer
2. asked by William
3. 612 views
2 questions please:The highest positive oxidation number that chlorine can exhibit an any compound is +7, whereas its most
1. 0 answers
2. asked by Derrick
3. 610 views
I need help atleast an equation to get started pleaseA lab assisstant wants to make five liters of 27.8% acid solution. If
1. 3 answers
2. asked by Janine
3. 605 views
Pure copper has a density of 8.933 g/cm^3. What is the volume of a 5 g block of copper?I did D=M/v Flipped the formula to V=M/D
1. 2 answers
2. asked by John
3. 597 views
the area of the total surface of a polyhedron weighing 64 lb. is 340 sq. in. what is the surface of a similar polyhedron made of
1. 1 answer
2. asked by sara
3. 594 views
I'm trying to conjugate this in the past tensetú/presentarse would I conjugate it in past tense like this- (tú te presentaste)
1. 3 answers
2. asked by Jake
3. 593 views
Some of the fields have large enough quantities of both oil and natural gas that coordination must achieved for the production
1. 1 answer
2. asked by tip
3. 590 views
If a match box has inside dimensions of 2 in. by 1 ¼ in. by 5/8 in., find the useful capacity of the box. The cover is made
1. 1 answer
2. asked by xzknij
3. 573 views
In 1972, there were 3.4 trillion cigarettes purchased worldwide, and in 1984, there were 4.3 trillion cigarettes purchased
1. 1 answer
2. asked by Kwame
3. 563 views
self-service procurement. self service business intelligence. self-service recovery. user provisioning in private clouds. it's a
1. 3 answers
2. asked by maria
3. 562 views
What are the advantages of having an ethics office or officer report to a company’s chief executive officer, the legal
1. 1 answer
2. asked by Priscilla
3. 558 views
Movie attendance dropped 8 percent as tick prices rose a little more than 5 percent. What is the price elasticity of demand for
1. 0 answers
2. asked by Ashaki
3. 553 views
Na (s) + 1/2F2 (g) = 2NaF (s)Are the reactants at higher or lower energy than the products and is the reaction endothermic or
1. 1 answer
2. asked by Bran
3. 553 views
If 33.7 ml of 0.210 M KOH is required to completely neutralize 27.0 ml of a HC2H3O2 solution, what is the molarity of the acetic
1. 1 answer
2. asked by Michael
3. 549 views
A group meeting is attended by 16 delegates.(a)If a 6-person negotiation panel is selected at random from the 16 delegates, what
1. 3 answers
2. asked by matt
3. 548 views
How smoking is a human factor tha may cause ill health,accidents,crises or disaster?
1. 1 answer
2. asked by Tsakani
3. 545 views
Hello. I will really appreciate some help.1)Do you think it's possible and natural to use "unsuccessfully" in the following
1. 1 answer
2. asked by Ilma
3. 532 views
Design the defining diagram, hierarchy chart and the algorithm that will determine the percentage sales commission earned on
1. 0 answers
2. asked by Devi
3. 529 views
Are these listed in the correct order of increasing average molecular speed?NH3<N2<CO2<SO2<Cl2 ???
1. 1 answer
2. asked by John
3. 528 views
Always forms virtual images at the same distance behind the optic as the object is in front of it.I thought it was concave but
1. 1 answer
2. asked by matthew
3. 528 views
Determine the pressure in atm for a 10 g of CO2 sample contained in a sealed 10 L tank at 50degrees C?Did anyone get 26.5 atm?
1. 4 answers
2. asked by John
3. 516 views
can someone tell me if i have the answer correcta. Suppose a market research company finds that at a price of p = $40, they
1. 1 answer
2. asked by nell
3. 512 views
Could you please check if these questions are all possible? Thank you, Writeacher.1)Focus on the first Hanoverians and answer
1. 1 answer
2. asked by Mike
3. 510 views
does anyone know a poem about seashores and it has to be aroung grade 6 level thank u?
1. 2 answers
2. asked by smiley
3. 505 views
which of the following is true regarding doing online search for information
1. 3 answers
2. asked by moha
3. 503 views
What punctuation is correct for this sentence? Comma or Semi-Colon?But these weren’t simply mashed; they were formed
1. 1 answer
2. asked by Teddy
3. 500 views
104. A fly stationed at a point on the circumference of the base of a cylindrical tower of radius 12 ft. finds that he can just
1. 1 answer
2. asked by apolonio
3. 500 views
The probability that a voting-age adult in 2004 voted in the presidential election was 0.57. Five voting-age adults in 2004 were
1. 0 answers
2. asked by Timothy
3. 496 views
A 2630-kg car drives up a hill 769 meters high in 41.0 seconds. Calculate the power exerted
1. 2 answers
2. asked by Matt
3. 486 views
find the altitude on hypotenuse if a=6cm and b=8cm?
1. 3 answers
2. asked by ma
3. 485 views
Hello, I'm having a hard time fingering our this question. Not really sure what formula to use. Thanks in advance!For a five
1. 0 answers
2. asked by lynn
3. 473 views
evaluate the expression. Assume h does not equal 0 h^o=
1. 0 answers
2. asked by plz help
3. 452 views
write 8,350,000 in scientific notationmy answer: 8.350 X 10^3
1. 1 answer
2. asked by pls check
3. 439 views
factor -16sin^2a+81
1. 1 answer
2. asked by sasha
3. 428 views
find the area of the earth's surface within the Arctic Circle; that is, in latitude north 66° 32' N. thank you! :D
1. 0 answers
2. asked by sara
3. 415 views
Simplify: (8x^8 y^27) ^1/3I need a little help learning how to work this problem out
1. 1 answer
2. asked by GREG B.
3. 413 views
Solve by Factoring2a^2 - 3a = -5
1. 1 answer
2. asked by kayla
3. 411 views
which two points of a trignometric function will always give an average rate of change of 0?
1. 0 answers
2. asked by shab
3. 388 views
if i use 30 ul from a total volume of 600ul to get 40ug/ml. So to get the total ug only, do i take
1. 0 answers
2. asked by eng
3. 378 views
i need a sentence for controle
1. 3 answers
2. asked by jessie
3. 365 views
i need help writing a outline for the movie blindside
1. 1 answer
2. asked by shelia
3. 362 views
solve -9< 4x - 4< -3
1. 1 answer
2. asked by Sue
3. 355 views
5(2z-1)-4(z+9)=4(z+1)type an intriguer or a simplified fraction this is a liner equation
1. 1 answer
2. asked by Taffany
3. 349 views
evaluate the expressions2(4/7)^0 my answer 2 (-8)^0 my answer 1
1. 1 answer
2. asked by pls check
3. 348 views
If a^x=b^y=c^z and b^2=ac then find value of y.
1. 1 answer
2. asked by Shobhit
3. 340 views
calculate10^1.27 how do i do this?
1. 4 answers
2. asked by hannah
3. 329 views
Multiply -7/5 * (6/7)
1. 1 answer
2. asked by Sue
3. 314 views

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