Be sure to answer all parts. The circle at right represents a portion of a mixture of four gases: Gas A (purple), Gas B (brown), Gas C (green), and Gas D2 (orange). 126 The circle contains 4 purple spheres, 3 brown spheres, 5 green spheres, and 4 pairs of orange spheres. (a) Which gas has the highest partial pressure? Gas A has the highest partial pressure Gas B has the highest partial pressure Gas C has the highest partial pressure Gas D2 has the highest partial pressure (b) Which gas has the lowest partial pressure? Gas A has the lowest partial pressure Gas B has the lowest partial pressure Gas C has the lowest partial pressure Gas D2 has the lowest partial pressure