How many protons (p) and neutrons (n) are in the atom of 38 90sr?

What is the temperature of one mole of helium gas at stp?

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

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