Tuesday
September 16, 2014

Posts by eng


Total # Posts: 122

chemistry(check my answers please)
1)An increase in temperature ____________ the kinetic energy and average speed of the gas particles. A. decreases B. increases 2)As a result, the pressure on the walls of the container __________. A. decreases B. increases C. is not affected 1) i think its increase 2)i think ...
January 23, 2010

chemistry
Why isn’t the six atom ring created when ASA binds to Fe3+ flat like the benzene ring? is it because that Fe3+ distorted the angles tats why it is not flat
January 21, 2010

chemistry
How do the bond angles in the six atom ring (created when ASA binds to Fe3+) differ from the bond angles of the six atom benzene ring? are there even any tetrahedral angles in here because the angles i found are 123.66,124.12,119.15,114.71,89.86. Some are too big for 109 degrees
January 21, 2010

chemistry
Calculate the molality (m) of CH2Cl2 in a solution generated by combining 846 g of the solute CH2Cl2 with 11.2 L of the solvent ethanol.
January 20, 2010

chemistry
Using the balanced equation, determine the number of NaNO3 units in the visualization in the reaction. 3Ca(NO3)2(aq) + 2Na3PO4(aq) → 6NaNO3(aq) + Ca3(PO4)2(s)
January 20, 2010

chemistry
If the ratio of the rate of effusion of an unknown gas to that of CO under the same conditions is 0.7978, calculate the molar mass (g/mol) of the gas
January 15, 2010

chemistry
1) 14 moles of Ar 12 moles of N2 2 moles of BF3 If the total number of mol present in the mixture visualized is 1.43, calculate the number of mol of N2. 2) 11 moles of N2 4 moles of CSH4 If the total number of mol present in the mixture visualized is 1.68, calculate the number...
January 15, 2010

chemistry
u were right on that significant figure. Thanks for the help
January 11, 2010

chemistry
Infrared, ultraviolet, and visible radiation are all part of the electromagnetic spectrum. Arrange the three types of radiation in order of increasing energy? i put visible<infrared<ultraviolet. Is this correct though
January 11, 2010

physics
An automobile tire is rated to last for 60,000 miles. To an order of magnitude, through how many revolutions will it turn? i put 10E7 but i got it wrong since i used 1rev/8ft
January 8, 2010

physics
then do u write it as 1.62E4, but i remember that i did convert it to lb
January 8, 2010

physics
An auditorium measures 35.0 m multiplied by 15.0 m multiplied by 5.0 m. The density of air is 1.20 kg/m3. What is the weight of air in the room in pounds? i got 4.25 x 10^5 and the page says that "Your response differs from the correct answer by orders of magnitude. lb&...
January 8, 2010

chemistry
A. What is the mass of Solution 3? in g B. What is the density of Solution 2? g/ml solution 1: Mass Empty Flask (g):42.252 Mass NaCl (g):0.911 Volume Water (mL):100 Mass of Flask + Solution (g):43.107 solution 2: MEF: 45.778 mass nacl:0.897 volume water: 100 mass of Flask+sol:...
January 8, 2010

chemistry
i dont know if this is right, 2SO3–2 + MnO4 yield 4SO42– + 2Mn2+
January 7, 2010

chemistry
1)The reaction of methane and oxygen yields carbon dioxide gas and water. The unbalanced reaction is as follows: CH4(g) + O2(g)CO2(g) + H2O(g) A. If 0.718 grams of methane are reacted, how many grams of water vapor are produced? B. If 1.621 grams CO2 are released, how many ...
January 7, 2010

chemistry
@ DrBob222, i tried your way already and it didnt work. 2/102 x100=1.96 can you double check again
January 7, 2010

chemistry
You have 2.0 g of solid A, 100.00 mL of water (100.0 g of water), and the total mass of solid A combined with 100.00 mL of water is found to be 102.0 g. The mass percent of A in this solution is
January 7, 2010

12th grade
Does knowledge acquired in highschool liberate or hinder students? Please help explain the question and your opinion.
September 26, 2009

ENGLISH higschool
Thankyou, any other opinions are much appreciated as well.
September 26, 2009

ENGLISH higschool
can anyone explain what the question means?
September 26, 2009

ENGLISH higschool
Does knowledge acquired in highschool liberate or hinder studnets?
September 26, 2009

english
What is the difference between poems and poetry?
May 28, 2008

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