What is the best reagent got converting 2-ethylcyclopentanol into 1-bromo-2-ethylcyclopentanol gg

What is the percentage composition of carbon in the compound ch4

When a septic tank backs up a goes in to clean it out

From the options provided for each element below, choose the properties that it may have based on its location in the periodic table fluorine (f): highly reactive nonmetal shiny a conductor