3. the alcohol in "gasohol" burns according to the following equation. c2h6o + 3 o2 > 2 co2 + 3 h2o (a) if 25 moles of ethyl alcohol burns this way, how many moles of oxygen are needed? (b) if 30 moles of oxygen is consumed by this reaction, how many moles of alcohol are used up? how many moles of carbon dioxide are formed? (c) in one test, 23 moles of carbon dioxide was produced by this reaction. how many moles of oxygen were consumed? (d) in another test, 41 moles of water is collected from this reaction. how many moles of alcohol had been consumed?