A galaxy moving away from us would exhibit what type of spectrum shift?

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

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