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What is the polyatamic ion of thiosulfate

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?

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