Recent content by lana91

  1. L

    Chemistry What Is the Molecular Formula of the Hydrocarbon?

    CxHy + (x+y/4)O2 --> xCO2 +y/2H2O thats the correct answer from ccea spec for alevel chemistry =]
  2. L

    Converting km/hr to m/s: What is the formula?

    take it in steps. to get from km to m jus multiply by 1000 then to get from hours to sec divide by 60 to get min and then by 60 again to get sec --- mutiply by 1000 and divide by 3600 Another PF thread on this topic is here...