Questions Asked on December 28, 2008

I have a water sample that contains 0.50 mg/l (or ppm) of phosphate. We know that phosphate is a c... Asked on December 28, 2008 at 12:06 AM Looking at how Mikhail Gorbachev's policies changed the Soviet Union, would you consider him a patri... Asked on December 28, 2008 at 2:04 AM can someone tell me some fossil, DNA, and archeological evidences of multiregional and out of africa... Asked on December 28, 2008 at 3:55 AM A woman on a bridge 90.0m high sees a raft floating at a constant sped on the river below. She drops... Asked on December 28, 2008 at 5:12 AM A solution of acid was found to have a pH of 1.50. What is the hydrogen ion concentration of the sol... Asked on December 28, 2008 at 2:42 PM Use the following balanced chemical equation to calculate the mass of carbon dioxide produced from t... Asked on December 28, 2008 at 3:55 PM solve the equation: x^2+5x-14=0 Asked on December 28, 2008 at 6:29 PM Explain how rubbin fur on an ebonite rod produces a charge on the rod. What chrage is produced in th... Asked on December 28, 2008 at 6:35 PM factor the expression 2x^2+x-15 Asked on December 28, 2008 at 6:50 PM Reiny i got (x+5)(x-3) x=-5 or x=3 Asked on December 28, 2008 at 7:17 PM