"How do scientists investigate and evidence about the human body?"

What reaction is taking place? 02 + c3h8 = h20 + co2

  the mississippians were considered to be  horticulturalists, which means they were

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?