If you used 71 g of K and 200 g of Br2, how much Br2 would you have leftover? 2 K + Br2 —> 2 KBr

Indicate whether the specified alkyl halides will form primarily substitution products, only elimination products, both substitution and elimination products, or no products when they react with sodium methoxide. 1-bromobutane 1-bromo-2-methylpropane 2-bromobutane 2-bromo-2-methylpropane