Posts by Trista
Total # Posts: 38
Assume that you are considering a 7-night vacation to Fort Walton Beach, Florida, in March. You estimate the total cost of the trip to Fort Walton Beach at $1,250, including discounted airfare. However, a resort at Myrtle Beach, South Carolina, is offering 3 free nights with a...
March 8, 2015
Please help me!!!!
2CH4 + 2NH3 +3O2 Arrow 2HCN + 6H2O CH4 is going to be used up making it the limited reagent 13.5 g CH4 10gNH3(1 mole NH3)(2 mole HCN) (14.01g NH3)(2 mole NH3) =.714 mole HCN Do the same for Ammonia and you get .499 mole HCN or .50
December 19, 2012
John can clean an attic in 11 hours. DeShawn can clean the same attic in 17 hours. If they worked together how long would it take them? Please solve and show the work. Rounding the answer to the nearest hundredth.
November 7, 2012
A ball has an initial velocity of 22.0 m/s but is accelerating at a rate of -1.0 m/s squared. After it has traveled 25.0 meters what is its new velocity? The answer is 20.8 m/s squared. I don't no how my teacher got that answer. please help as soon as possible. Thank you
November 30, 2010
Set a frictionless incline at various measured angles then determine the acceleration of a block by measuring the time it takes to increase from an initial speed to a final speed.If the angle is 20 and the initial speed is 0.68m/s and final speed is 2.43m/s and the time is 0....
November 21, 2010
It's a monomial and we are told to simplify and assume no denominator is equal to zero. its a -10m-1y0r means -10m to the neg. 1 power and y to the 0 power and r. I don't know how to write the powers. that equation is divided by -14m-7y-3r-4.which means -14m to the -7 ...
January 21, 2010
I sent a math equation to be solved because i am comfused on what to do with the whole numbers and I got one reply that is not correct. Here it is again. Simplify. Assume no denominator is equal to zero. -10m-1y0r _______________its a fraction set up. -14m-7y-3r-4
January 21, 2010
I need help finding a good website that tells how dracula by bram stoker is a literary success. Also awards that Bram Stoker has received. I tried typing it in the search bar and i cant find anything. please help me!
January 11, 2009
For the reaction H2(g) +S(s)->H2S(s), Triangle H= -20.2 kJ and triangle S= 43.1 J/K. WHen will the reaction be spontaneous? I know that it has to be negative to be spontaneous but i don't exactly know how to answer this question.
April 24, 2008
help me please i don't understand what to do... Calculate the molar entropy of vaporization for liquid hydrogen iodide at its boiling point -34.55 degrees celcius. HI(l) arrows pointing to both HI(g) Triangle H of vap= 19.76 kJ/mol
April 24, 2008
is this true or false? i think its false because isnt it spontaneous if its positive When (triangle i think its called delta) H for a reaction is large and positive, the reaction is not expected to be spontaneous.
April 22, 2008
1 How many faces does a square pyramid have? 2 How many edges does a square pyramid have? 3 How many vertices does a square pyramid have? answer? 8, 5, 10 Viualize one of the great pyramids of Egypt. It's base is a square and it has four sides. So the total number of faces...
March 13, 2007