What are convection currents and how do they affect tectonic plate movements?

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

Why is carbon ideal for making different compounds?

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