1. Which would react faster with sodium iodide, (a) 1-fluorobutane or (b) 1-bromobutane? Explain why. 2. Would the reactions you tested using sodium iodide have worked if you had used alcohols as the starting materials in place of alkyl halides? Why or why not? 3. Would the reactions you tested using silver nitrate in ethanol have given the same observations if you had used sodium nitrate in ethanol instead? What, if anything, would be the difference?