Thursday
April 28, 2016

# Posts by sari

Total # Posts: 12

Econ Help if you can :P
Approximately 14 million Americans are addicted to drugs and alcohol. The federal government estimates that these addicts cost the U.S. economy \$300 billion in medical expenses and lost productivity. Despite the enormous potential market, many biotech companies have shied away...
September 8, 2015

Structure
no one would have attended the lecture if you told truth about the guest speaker
January 21, 2013

Math11
A model airplane is made on a scale of 1:128. A)What is the scale factor of the model? B)If the airplane has a wingspan of 30 cm, what is the wingspan of the actual airplane Need help on this.
March 30, 2012

Scale Representations
A model airplane is made on a scale of 1:128. A)What is the scale factor of the model? B)If the airplane has a wingspan of 30 cm, what is the wingspan of the actual airplane?
March 29, 2012

chemistry
In a titration experiment, 22.00mL of a NaOH solution are required to neutralize 24.02 mL of a 0.1094 M HCL solution. what is the molarity of H+ in the HCL solution? (same as the molarity of HCL)
November 9, 2011

chemistry lewis structure
help me please! dram the lewis structure of CNO - explain me please! thanks
November 4, 2011

chemistry lewis structure
please help me i dont know how to do this! Draw the lewis structure for: SiO3 -2
November 4, 2011

algebra
Find all positive solutions to x^7 - 5x^4 = 3x^2 - 10
October 16, 2011

chemistry
What mass of CO2, a greenhouse gas, is produced per liter of each fuel (assuming complete combustion) I got this data density of ethanol = 0.785 g/mL density of octane = 0.699 g/mL Ethanol) C2 H5 OH + 2O2 -> 2CO2 + 3H2O delta H combustion ethanol = -1234.8 Kj/mol Octane) ...
October 13, 2011

chemistry
1) MgO (s) + 2H (aq) -> Mg+2 (aq) + H2O (l) 2) Mg+2 (aq) + H2 (g)-> Mg(s) + 2H+ (l) 3) equation 1+ equation 2 = MgO (s) + H2 (g) -> Mg (s) + H2O (l) is it correct? if so, i need to write an expression which could be used to obtain the heat of formation of magnesium ...
October 12, 2011

Algebra
4(7x-1)=3(2x+1)-4(x+6) x=?
June 11, 2011