The following reaction shows the products when sulfuric acid and aluminum hydroxide react. 2Al(OH)3 + 3H2SO4 → Al2(SO4)3 + 6H2O The table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. Initial Mass and Yield Sulfuric Acid Aluminum Hydroxide Initial Amount of Reactant 40 g 45 g Theoretical Yield of Water from Reactant 14.69 g 31.15 g What is the approximate amount of the leftover reactant? 20.89 g of sulfuric acid 22.44 g of sulfuric acid 21.22 g of aluminum hydroxide 23.78 g of aluminum hydroxide

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.