31. It includes an optional beaker of water between the reactants and the heat. 32. Because the diffusion speed is different for each reactant . 33. Alkynyl thioethers and ynamines have been used as reactants in the annulation reaction. 34. Catalysts can be used in a different phase ( homogeneous ) as the reactants . 35. Finally, the reactants for the Sharpless epoxidation are commercially available and relatively cheap. 36. Thus, the two enantiomers of the reactant produce a single enantiomer of product. 37. NASA identified the piece as a power reactant storage and distribution ( PRSD ). 38. Other reactants required are oxygen from air and small amounts of a radical initiator. 39. The initial amounts of reactants determine the distance from chemical equilibrium of the system. 40. This is equivalent to Avogadro's number of photons per mole of reactant .
