Help on these 2 chem questions please

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what

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

Balance the following reaction. as2s3 + 9o2 → 2as2o3 + so2