14 5. Ethanol (C H.O), a gasoline aditive, is formed by the reaction of ethy err to water. This compound is mixed with gasoline to produce\"gasohol , in our reliance on fossil fuels. This reaction releases energy order to reduce ?? CeSC+ ?? What type of reaction is the reaction of ethylene with water (decomposition, combination, single displacement, or double displacement)? a. b. Is the reaction endothermic or exothermic? Are the reactants, or are the products, lower in energy content? c. Solution (a) It is a combination reaction as there are no any by products formed and the two reactants are just added together. (b) Since it is given that this reaction releases energy, It is an exothermic reaction. (c) For exothermic rections, the energy of products is less than the energy of reactants. .