A major component of gasoline is octane (C8H18) . When liquid octane is burned in air it reacts with oxygen (O2) gas to produce carbon dioxide gas and water vapor. Calculate the moles of octane needed to produce 2.5 mol of water. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits.

Which type of precipitation would most likely form when the surface air temperature is slightly below freezing and the air temperature increases as you move upward away from the ground?

Salt in oceans comes from and of rocks

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?