2. The equation for the incomplete combustion of ethene (C 2 H 4 ) is C 2 H 4 + 2O 2 2CO +2H 2 O If 2.70 mol C 2 H 4 is reacted with 6.30 mol O 2 , a. Identify the limiting reagent . b. Calculate the moles of water produced .

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space