Which of these is a physical change. 1. melting a substance 2. breaking chemical bonds 3. forming chemical bonds 4. nuclear decay !

What is the number of moles in 15.0 g ash3?

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

The time that is taken by neptune once around the sun is called