Write an equation, using the curved-arrow notation, for the acid-base reaction that will take place when each of the following are mixed. If no appreciable acid-base reaction takes place, because the equilibrium is unfavorable, you should so indicate: (a) CH3CH2ONa in ethyl alcohol and ethyne (b) CH3CH2Li in hexane and ethyne (c) CH3CH2Li in hexane and ethyl alcohol