Do you have any ideas for a sodium poster project other than a salt shaker?

1) this is the structure in the cell nucleus that houses a cell's genetic information

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

Ineed to find the answer of this question because i dont understand it