the mass number us used to calculate the number of in one atom of an element. In order to calculate the number of neatrons you must subtract the from the ​

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

Give the set of reactants (including an alkyl halide and a nucleophile) that could be used to synthesize the following ether: draw the molecules on the canvas by choosing buttons from the tools (for bonds and charges), atoms, and templates toolbars, including charges where needed. ch3ch2och2ch2chch3 | ch3

Briefly explain the process of refining of petroleum.