Saturday
April 19, 2014

Posts by monty


Total # Posts: 22

math
Calculate the are of triangular cross-section and also its volume.

manotriy
Surveys conducted in the months after 9/11 found a growing willingness on the part of the American public to

algebra
420-84Y+10Y=462

algebra
2(10-2y)+y((3/7)/(9/10))=22

Math
The above answer is wrong. (84000-45000) is not 28000, it is 39,000. Therefore 39000/3 is 13000. M =13000.

Chemistry (Hess's Law)
NO2(g) → 1⁄2N2(g) + O2(g) ΔH1 = -33.9 kJ NO2(g) → NO(g) + 1⁄2O2(g) ΔH2 = 56.5 kJ What is ΔH for the reaction 1⁄2N2(g) + 1⁄2O2(g) → NO(g) ?

Chemistry
Calculate the work done in joules when 1.0 mole of water vaporizes at 1.0 atm and 100C. Assume that the volume of liquid water is negligible compared with that of steam at 100c, and ideal gas behavior

Chemistry
What volume of a .500 M HCl solution is needed to neutralize each of the following: 10 ml of a .300 M NaOH solution 10 mL of a .200 M Ba(OH)2 solution

Chemistry
S^2- + Cu^2+ = CuS(s) .0177g CuS / molar mass CuS= Moles of CuS Moles of CuS= Moles of Cu Moles Cu/ Initial volume= Molarity of Cu

Chemistry
The Concentration of Cu2+ ions in the water (which also contains sulfate ions) discharged from a certain industrial plant is determined by adding excess sodium sulfide(Na2S) solution to .800 L of the water. Molecular Equation: Na2S(aq) CuSO4(aq) --> Na2SO4(aq) + CuS(s) Writ...

Physics
A rocket moves upward, starting from rest with an acceleration of 35.0 m/s2 for 5.63 s. It runs out of fuel at the end of the 5.63 s but does not stop. How high does it rise above the ground?

Physics
A rocket moves upward, starting from rest with an acceleration of 35.0 m/s2 for 5.63 s. It runs out of fuel at the end of the 5.63 s but does not stop. How high does it rise above the ground?

Physics
A rocket moves upward, starting from rest with an acceleration of 35.0 m/s2 for 5.63 s. It runs out of fuel at the end of the 5.63 s but does not stop. How high does it rise above the ground?

Physics
A rocket moves upward, starting from rest with an acceleration of 35.0 m/s2 for 5.63 s. It runs out of fuel at the end of the 5.63 s but does not stop. How high does it rise above the ground?

chemistry
calculate the work done when 50.0g of tin dissolves in excess acid at 1.00 atm and 25 degrees c.

Eth 125
12. b

Math
i tried and tried and i cant find the answer. is it not a solution. (3/x)-1=7/(x-20)

college math
it suppose to be (3/x)-1=7/(x-20)

college math
i wrote it wrong the 1st time. this is the problem. solve: (3/x)-1=(7/x-20)

college math
solve: (3/x)/1=(7/x-20) i keep getting different answers for this question. the last answer i got was 20 (which would make it not a solution) but im not sure if that is right

Math
After getting ã(x)/(2ã2) why dont u multiply both sides by &radic(2)

science
what product is left when dilute sulphuric acid and zinc go together? (Broken Link Removed) dissolved in water, of course, the water that was carrying the H2SO4.

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