60 points ! PLZ help me ASAAAP the questions are in the attachment file

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

Why is the structure of molecule important to its function?

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