When it is treated with sodium ethoxide in deuterated ethanol (C2H5OD), 1,3-cyclopentadiene exchanges all of its hydrogens for deuterium. Draw a structure for the reactive intermediate that forms in this reaction in its hydrogen form.

Use the standard enthalpies of formation for the reactants and products to solve for the δhrxn for the following reaction. (the δhf of c2h4 is 52.26 kj/mol, co2 is -393.509 kj/mol, and h2o is -241.818 kj.) c2h4 (g) + 3o2(g) 2co2 (g) + 2h2o(g) δhrxn = the reaction is .

Blank allows you to do calculations for situations in which only the amount of gas is constant a)boyle's law b)combined gas law c)ideal gas law d)dalton's law

Heat is the total potential energy of a substance that can be transferred. true false