If 3.0 grams of zinc produced how many grams of Hydrogen chloride are needed?

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

For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4al(s)+3o2(g)→2al2o3(s) a) 1 molal, 1 mol o2 b) 4 molal, 2.6 mol o2 c) 16 molal, 13 mol o2 d) 7.4 molal, 6.5 mol o2

Air can be considered a mixture. which statement does not explain why?