Which particle model diagram represents only one compound composed of elements X and Z? Please help!

The reaction below has a kp value of 3.3 x 10-5. what is the value of kc for this reaction at 700 k? 2 so3(g) ↔ 2 so2(g) + o2(g) the reaction below has a kp value of 3.3 x 10-5. what is the value of kc for this reaction at 700 k? 2 so3(g) ↔ 2 so2(g) + o2(g) 1.9 × 10-3 5.7 × 10-7 3.0 × 104 3.3 × 10-5 1.7 × 106