Explain the biological pump (2 or more sentences)

What is the number of atoms in 3.54 mol s

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

In one or two grammatically correct sentences, write a definition for the term molecule geometry