The balanced redox reactions for the sequential reduction of vanadium are given below. reduction from +5 to +4: 2 vo2+(aq) + 4 h +(aq) + zn(s) → 2 vo2+(aq) + zn2+(aq) + 2 h2o(l) reduction from +4 to +3: 2 vo2+(aq) + zn(s) + 4 h +(aq) → 2 v3+(aq) + zn2+(aq) + 2 h2o(l) reduction from +3 to +2: 2 v3+(aq) + zn(s) → 2 v2+(aq) + zn2+(aq) if you had 11.7 ml of a 0.0037 m solution of vo2+(aq), how many grams of zn metal would be required to completely reduce the vanadium

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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.

Calculate the ph of a .10m nh4cl solution. the kb value for nh3 is 1.8×10^-5