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A 0.2mol/L solution of KMnO4 has been added to 10 ml of 0.5mol/L acidified FeSO4. write the balance equation of the reacttion then calculate the volume of the oxidizing solution that should be added to oxidize all the Fe^2+ ions. please help and thank you...

how are rivers a metaphor for the history of the speakers people in language hughes'"the negro speaks of rivers"?

Two dimensions. In the figure, three point particles are fixed in place in an xy plane. Particle A has mass mA = 4 g, particle B has mass 2.00mA, and particle C has mass 3.00mA. A fourth particle D, with mass 4.00mA, is to be placed near the other three p...

Classify the following solutions in order of increasing pH: 0.01 M NaOH 3 pure water 2 0.10 M HCl 1 0.05 M NaOH 0.001 M HCl