Thursday

May 5, 2016
Total # Posts: 391

**STOICHIOMETRY**

2Al + 3CuSO4 ! Al2(SO4)3 + 3Cu What is the maximum amount of Cu (63.5 g/mol) that could be produced by reacting 20.0 grams of Al (27.0 g/mol) with excess CuSO4?
*November 4, 2010*

**Philosophy**

Symbolize these arguments and display truth trees to evaluate the resulting argument forms for validity. If the argument form is invalid, describe (in English) the conditions under which the premises would be true but the conclusion false. 99.32 There will be scorpions in the ...
*October 22, 2010*

**Philosophy**

Prove informally, by employing correct definitions and principles of reasoning, that the following are true. 1/ Every formula implies itself. (That is, A implies A . Hint: For this one you will need to employ the definition of interpretation.) 2/ If set S implies formula A , ...
*October 22, 2010*

**Philosophy**

Construct natural deduction proofs for each of the following. 118.2 p&(q&r).'. q 118.4 .'. ¬(p&(q&¬p)) 118.10 q .'. ¬(¬p&¬q) 122.3* p " q, ¬p " r .'.¬q " r 122.7* p " q, ¬(p " r) .'. ¬(q " r...
*October 22, 2010*

**ital**

venti,ventuno,ventidueventitre,ventiquattro, venticinque, ventisei ventisette ventotto ventinove trenta I KNOW HOW TO SPEAK ITALIEN IF ANY MORE QUESTIONS FEEL FREE TO ASK
*October 20, 2010*

**Physics**

When will an object be in equilirium if different forces are acting on the object from the different systems? Would it be appropriate to use F=ma to find the equilibrium?
*October 9, 2010*

**College Chemistry**

what is the maximum weight of CuCl that can be prepared from the reaction sequence using 1.0g of Cu turnings to prepare the Cu2+ solution?
*October 7, 2010*

**College Chemistry**

how many grams of metallic copper are required to react with the number of moles of Cu2+ , 0.16mol, to form CuCl overall reaction can be taken as: Cu2+(aq) + 2 Cl- (aq) + Cu(s)-->2CuCl(s)
*October 7, 2010*

**College Chemistry**

The Cu2+ ions in this experiment are produced by the reaction of 1.0 g copper turnings with excess nitric acid. How many moles of Cu2+ are produced?
*October 7, 2010*

**Geographyand socity**

Owh wow....so 'Anonymous' what were you doing here if you weren't looking for answers???? Pshh your no better than us!
*October 5, 2010*

**Physics**

Small, slowly moving spherical particles experience a drag force given by Stokes’ law: where r is the radius of the particle, is its speed, and ç is the coefficient of viscosity of the fluid medium. (a) Estimate the terminal speed of a spherical pollution particle ...
*September 29, 2010*

**college**

Physical science
*September 19, 2010*

**college**

A car accelerates at a rate of 0.6 m/s2. How long does it take for this car to go from a speed of 55 mi/h to 60 mi/h?
*September 19, 2010*

**college**

A car accelerates at a rate of 0.6 m/s2. How long does it take for this car to from a speed of 55 mi/h to 60 mi/h?
*September 19, 2010*

**English**

But this is what authentic means? based on fact (cultural accuracy) reproducing essential features of an original (cultural accuracy) true to the creator's own cultural personality, spirit, or character (cultural immersion)
*September 18, 2010*

**English**

Is the book new shoes for sylvia authentic if so why?
*September 18, 2010*

**Ethics**

What evidence do you see of an ethical breakdown in Canadian society affecting all sectors (e.g., business, education, and government)?
*September 12, 2010*

**english check answer**

wary, inclination dilemma 9, irate 1o, reotrt
*August 28, 2010*

**algebra **

sqrt(36/81)=(sqrt36)/(sqrt81) =6/9 (6^2=36, 9^2=81) =2/3 (take out the common factor 3 from both the denominator and the numerator)
*June 16, 2010*

**GR.12 DATA MANAGEMENT**

I GOT IT!!!!!!! [10!/(2!2!) - (9!/2!2!)]+[(2)(10!/2!2!2!) - [(2)(9!/2!2!2!)]=1632960
*June 16, 2010*

**GR.12 DATA MANAGEMENT**

How many ways are there to arrange the word: MATHEMATICS, if the last letter can not be "H", and the first letter must be a vowel?
*June 16, 2010*

**algebra**

3m+2p=1.8 (qeuation A) 4m+6p=2.9 (equation B) "equation A" times "3": 9m+6p=5.4 (equation A') "equation A'" - "equation B": 5m=2.5 [m=0.5] substitude "m=0.5" into "equation A": 3(0.5)+2p=1.8 1.5+2p=1.8 2p=0.3...
*June 16, 2010*

**business**

You work as the manager of the second largest bank in your region of the United States. The bank's top management team has asked you to present an overview of how the current economy and financial changes have impacted your business and what changes must be made as a ...
*June 6, 2010*

**algebra**

how do you Simplify (d^3)(d^4)^5?
*June 3, 2010*

**algebra**

how do you solve this equation 3x2 + 6x + 3 = 0 ? what does x equal? and how do you factor this? 4ab + 2a + 6b + 3 Thank you SOO much for the help!
*June 3, 2010*

**English**

why dont you say: sitting and standing properly are crucial factors to maintaining a healthy back.
*May 3, 2010*

**chemistry**

A solution is made by adding 5.0 g Na2CO3 * 10H2O to enough water to make a 500 mL solution. what is the molarity. I have: M=mol solute/liter solution = (5/286)/.5 = .035M 286 is what i got for the molar mass of Na2CO3 * 10H2O Is that correct?? I think it is, but the next ...
*May 3, 2010*

**CHEMISTRY--URGENT**

oh, sorry! its 2 liters HNO3 and the answer is 11.65 so it would be: -log [(20 - 2e-8) / 4000] = 2.3 = [OH] 14 - 2.3 = 11.65 (without the rounding of the 2.3) why, though, would you subtract it from the other?
*May 2, 2010*

**CHEMISTRY--URGENT**

HNO3 with pH 3 is mixed with 2 L KOH with pH 12. assuming volumes are additive what is the pH of the final solution? I have absolutely no idea how to do this. I do know the answer, though. I have a test tomorrow and I would really appreciate it if someone could help!!!!
*May 2, 2010*

**Medical coding Insurance Math**

298
*May 1, 2010*

**9th Grade Social Studies**

Had the world gone along with Wilson’s plan to remove economic barriers between nations, what kind of place would the world be? Would it be better? Worse? How would you answer this question?
*April 23, 2010*

**CHEMISTRY--PLEASE HELP, URGENT**

A saturated solution of CaSO4(aq) is made in a beaker until there is excess calcium sulfate resting at the bottom. Then solid potassium sulfate is added. Which of the following is true? (The Ksp for potassium sulfate is larger than the Ksp for calcium sulfate) a. More calcium ...
*April 12, 2010*

**CHEMISTRY--PLEASE HELP, URGENT**

What concentration of silver chromate (Ksp = 9.0 x 10-12) will dissolve in 500. mL of 0.01 M aqueous silver nitrate?
*April 12, 2010*

**chemistry--URGENT, PLEASE HELP**

What concentration of silver chromate (Ksp = 9.0 x 10-12) will dissolve to make a saturated solution in water? *For this one the formula is Ag2CrO4, which is [Ag]^2[CrO4]. I plugged x in for CrO4, so x^3 is equal to Ksp. I then got that x = 2.0e-4. However, that x is for CrO4...
*April 12, 2010*

**Chemistry (urgent)**

thank you so much!! I got a 100 on the test I was studying for!
*April 12, 2010*

**Chemistry (urgent)**

Hi, I have a few chemistry problems that I'm having trouble solving. I put my attempted solutions after the problems in *'s. There was one problem I had no idea how to solve. What concentration of silver chromate (Ksp = 9.0 x 10-12) will dissolve to make a saturated ...
*April 12, 2010*

**math-DUE TONIGHT PLEASE HELP**

The way to find the mean is by adding up all the different values and then dividing by the total number. If there are five numbers you can set up an algebraic equation like: x/5 = 61.8 then you can set up a new equation to solve for the height without the absent student: h/4...
*April 12, 2010*

**Chemistry**

Hi, I have a few chemistry problems that I'm having trouble solving. I put my attempted solutions after the problems in *'s. There was one problem I had no idea how to solve. What concentration of silver chromate (Ksp = 9.0 x 10-12) will dissolve to make a saturated ...
*April 12, 2010*

**biology**

Thank you!
*April 9, 2010*

**biology**

Which of the following statements about sexual and asexual reproduction is FALSE? a. Genetic diversity occurs in sexual reproduction. b. Asexually reproducing organisms can repair their own DNA. c. There are no special reproductive cells in asexual reproduction. d. A ...
*April 9, 2010*

**biology**

Thank you!
*April 9, 2010*

**biology**

When Darwin published his theory of evolution, he included all of the following ideas EXCEPT the idea that a. species changed slowly over time. b. some organisms become less suited to their environment then others. c. evolution occurs in spurts after major environmental ...
*April 9, 2010*

**geography**

Thank You!
*April 8, 2010*

**geography**

The factor that is forcing many South Asians to move to cities is a. religious conflict in rural areas. b. the threat of landslides in coastal areas. c. lack of arable land due to a growing population. d. dry conditions in the Indo-Gangetic Plain C?
*April 8, 2010*

**science**

Screw you SraMcGin, ciara asked for an answer not for another useless search engine that turns up useless websites
*April 4, 2010*

**language arts**

did i punctuate this sentence correctly? "They wanted to have the woman give birth to healthy babies, but they wanted to get as much work out of the woman as possible; therefore, the women were given lighter tasks."
*April 4, 2010*

**math**

int 1/ (sq rt (4sec^2 x +4)) dx trigonometric substitution expression: sq rt (x^2-a^2) substitution: x=a sec x identity: sec^2 x -1=tan^2 x
*March 4, 2010*

**math**

what is a like fraction? greatest common factor? unlike fractions?
*February 28, 2010*

**Language Arts**

I have an essay due tomorrow and it is required to have at least one adverb clause. I'm still a little confused about how to create an adverb clause. Help pleasee?!
*February 18, 2010*

**math**

what did the witty raindrop exclaim to all the others
*February 4, 2010*

**Organic chemistry**

its semi soluble.... it only dissolves if heated
*January 24, 2010*

**Pre- algebra**

66 2/3 of 120?
*January 12, 2010*

**Physics**

The initial velocity is 0 because it is starting in your hand, not moving
*December 26, 2009*

**health**

If a person has stopped breathing and is receiving pulmonary resuscitation, would it be better to administer pure oxygen or a mixture of oxygen and carbon dioxide? Why?
*December 17, 2009*

**health**

if a person has stooped breathing and is receiving pulmonary resuscitation, would it be better to administer pure oxygen or a mixture of carbon dioxide/oxygen?why?
*December 16, 2009*

**math **

how do you classify a number ( 5th grade stuff)
*December 3, 2009*

**science**

Explain why water is an important solvent in the environment.
*November 30, 2009*

**physics**

An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? I think the answer is B but not sure. a) That there is no reaction force-the net force on the object is ...
*November 23, 2009*

**physics**

A small particle of mass 2.0 x 10^-19 kg is attached to a nanofiber of relaxed length 0.50 nm (Recall that 1.0 nm = 10^-9 m) . The nanofiber is the black horizontal line-its attached to a substrate (an immovable wall) on the left. The plot is a graph of the force needed to ...
*November 23, 2009*

**physics**

An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? a) That there is no reaction force-the net force on the object is zero, so the reaction force is zero ...
*November 22, 2009*

**physics**

A small particle of mass 2.0 x 10^-19 kg is attached to a nanofiber of relaxed length 0.50 nm (Recall that 1.0 nm + 10^-9 m) . The nanofiber is the black horizontal line-its attached to a substrate (an immovable wall) on the left. The plot is a graph of the force needed to ...
*November 22, 2009*

**physics**

. A 2.0 kg particle is moving along the x axis to the left with a velocity of v= -6.0 m/s. Suddenly, between times t =0 and t = 4.0 x a net force = 3t^2 – 12t is applied to the particle, where F is in N and t is in s. Calculate the velocity of the particle at t=4.0 s. ...
*November 22, 2009*

**physics**

A small particle of mass 2.0 x 10^-19 kg is attached to a nanofiber of relaxed length 0.50 nm (Recall that 1.0 nm + 10^-9 m) . The nanofiber is the black horizontal line-its attached to a substrate (an immovable wall) on the left. The plot is a graph of the force needed to ...
*November 22, 2009*

**physics**

An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? a) That there is no reaction force-the net force on the object is zero, so the reaction force is zero ...
*November 22, 2009*

**physics**

An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? a) That there is no reaction force-the net force on the object is zero, so the reaction force is zero ...
*November 22, 2009*

**physics**

If a mass attached to the center of a vertical circle swings around at a fixed speed (v) and gravity pulls straight downward, would the tensions in the rope attached to the mass be different at the top of the circle, straight down to bottom of circle, and directly straight out...
*November 22, 2009*

**physics**

Is it true or false that momentum is conserved when total mechanical energy is conserved?
*November 21, 2009*

**physics**

An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? a) That there is no reaction force-the net force on the object is zero, so the reaction force is zero ...
*November 21, 2009*

**physics**

In order to move a heavy object you must push against it with a larger force than it pushes on you. Is this true or false?
*November 21, 2009*

**physics**

A 2000 kg space probe is moving rightward in empty space along the x axis at 12 m/s. One of the probe’s rockets is fired providing a thrust of 1800j N along the y axis. The rocket fires for 1.5 s. How can I derive the equation for the trajectory of the probe during the ...
*November 21, 2009*

**physics**

A small particle of mass 2.0 x 10^-19 kg is attached to a string of relaxed length 0.50 nm .The string is the black horizontal line attached to a an immovable wall on the left. The plot is a graph of the force needed to stretch the string by pulling to the right on it .The ...
*November 21, 2009*

**physics**

A mass of 1.1 kg is attached to two cords. The cords are each an angle 30 degrees above and below the horizontal, The mass circles around the vertical pole at a fixed speed of 15 m/s in a circle of radius 0.50 m. How do I calculate the magnitude of the net force and the ...
*November 21, 2009*

**physics**

A 4.0 kg particle is moving along the x axis to the left with a velocity of v= -12.0 m/s. Suddenly, between times t =0 and t = 4.0 x a net force = 3t^2 – 12t is applied to the particle, where F is in N and t is in s. Calculate the velocity of the particle at t=4.0 s. Can ...
*November 21, 2009*

**physics**

The 2.kg mass is heading toward a ramp-there’s no friction. Notice that at the top right there is a relaxed spring. The spring constant is 50 N/m. Calculate the maximum compression of the spring after the mass has risen up the ramp and hit the spring.
*November 21, 2009*

**college**

The 2.kg mass is heading toward a ramp-there’s no friction. Notice that at the top right there is a relaxed spring. The spring constant is 50 N/m. Calculate the maximum compression of the spring after the mass has risen up the ramp and hit the spring.
*November 21, 2009*

**Finance**

Risk exposure due to heavy short-term borrowing can be compensated for by: A. carrying more receivables to increase cash flow. B. carrying highly liquid assets. C. carrying illiquid assets. D. carrying longer term, more profitable current assets.
*November 15, 2009*

**French 101**

Il vie a Paris pendant deux dans
*November 9, 2009*

**economics**

In the article about the financial problems of USA Today, Newsweek reported that the paper was losing about $20million a year. A Wall Street analyst said that the paper should raise its price from 50 cents to 75 cents, which he estimated would bring in an additional $65 ...
*October 23, 2009*

**economics**

Bridget has limited income and consumes only wine and cheese; her current consumption choice is four bottles of wine and 10 pounds of cheese. The price of wine is $10 per bottle, and the price of cheese is $4 per pound. The last bottle of wine added 50 units to Bridget’s ...
*October 23, 2009*

**fin220**

Collins Office Supplies is considering a more liberal credit policy in order to increase sales The following data is available for the company: Uncollectable new accounts 7% Collection costs 6% of new sales Production and selling costs 79% Accounts receivable turnover 6 Income...
*October 21, 2009*

**religion**

thanks i would still appreciate other feedback from others- this is kind o a survye
*September 19, 2009*

**MATH**

100 bushels of corn are divided among 100 men, women, and children. Men receive 3 bushels each, women 2 bushels and children 1/2 bushel each. How can the bushels be distributed? is there more than one solution? if so, find the other solutions.
*September 15, 2009*

**Physics**

An object acted on by three forces moves with constant velocity. One force acting on the object is in the positive direction and has a magnitude of 6.1 ; a second force has a magnitude of 4.0 and points in the negative direction. Find the direction of the third force acting on...
*September 15, 2009*

**4th grade**

1=? hundreths....not how many hundreths in 1, but how many hundreths is 1
*September 9, 2009*

**Check my answers please**

I posted this yesterday and someone said i did not haveoriginal data but it is in the link. Please take out spaces h t t p: //tinypic . co m/r/309lnac/3 1. The population growth exhibited by population A to the right is what? Is is exponential? 2. Population B reaches its ...
*August 31, 2009*

**science (please check my answers)**

h t t p: //tinypic . co m/r/309lnac/3 1. The population growth exhibited by population A to the right is what? Is is exponential? 2. Population B reaches its carry capacity at about what size? a. 0 b. 500 c. 1000 d. 1500 e. 2000 Is it 1500? 3. The plateau of population B is ...
*August 30, 2009*

**science: check my answers please**

h t t p: //tinypic . co m/r/309lnac/3 1. The population growth exhibited by population A to the right is what? Is is exponential? 2. Population B reaches its carry capacity at about what size? a. 0 b. 500 c. 1000 d. 1500 e. 2000 Is it 1500? 3. The plateau of population B is ...
*August 30, 2009*

**science**

thanks
*August 30, 2009*

**science**

h t t p : //tinypic. com /r/29za2co/3 In the diagram on the link,what numberof paramecium best represents the carrying capacity of the environmentfor the population shown? a. 200 b. 500 c. 600 d. 900 e. 1000 Is it 900?
*August 30, 2009*

**Algebra**

If h(x)=3/(2x+1), find h(a-1)
*July 27, 2009*

**Mathematics (cumulative frequency**

The figures below show to t he nearest minute 80 students waited to be served in a canteen. Waiting time No. of students Cum.Freq 1-5 4 4 6-10 7 11 11-15 11 22 16-20 18 ? 21-25 22 ? 26-30 10 ? 31-35 5 ? 36-40 3 ? How do i find cumulative frequency??? Dont want all the answer ...
*June 17, 2009*

**PreCalc**

The thing after -8 is supposed to be pi.
*May 20, 2009*

**PreCalc**

How do you find the amplitude of y=7/8sin[(-8ð/5)x]
*May 20, 2009*

**people**

Where can I find a list of famous old people who are still alive? Should include celebs, royals, political figures, etc. thanks
*May 18, 2009*

**Trig**

solve sin(2 theta)< cos( theta)
*April 19, 2009*

**Accounting**

Describe how you might conduct a stakeholder impact analysis of this scenario using the stakeholder impact analysis approaches: moral standards, 5-question, and the Pastin’s approach methods. The mayor of a small seaside town faces a tough decision. A prominent developer ...
*April 9, 2009*

**Organizational Behavior**

In frequently used shortcuts in judjing others,are there any examples for Selective Perception, Halo Error and Stereotyping?
*March 12, 2009*

**pre alg**

25a^-2 b^-5 c^8 / 40 a^5 c^9--this problem i come up with 5/8a7b5c..is this correct?
*March 1, 2009*

**math**

3-9^2 - 4(3)^2 + 8 - 2 how do you solve this?
*February 28, 2009*

**math**

how do I do this? I think I have to simplify it? (sin^2ө + cos^3ө/sinө + cosө)+ sinөcosө
*February 12, 2009*