Purification of chromium can be achieved by electrorefining chromium from an impure chromium anode onto a pure chromium cathode in an electrolytic cell. How many hours will it take to plate 16.0 kg of chromium onto the cathode if the current passed through the cell is held constant at 34.0 A ? Assume the chromium in the electrolytic solution is present as Cr 3 + .

altitude, density, pressure

air gets less dense the higher the altitude and also the air pressure is less as altitude rises.

cytokinesis is the splitting of a cell membrane to form 2 identical daughter cells. it's similar to mitosis as both cells have identical copies of dna and cytokinesis is a step in the mitotic cycle.

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).

the answer is option a.