Question 27 Not yet Use the following information to answer the next question. answered Marked out of 1.00 CO2(g) + 2H+ (aq) + 2e- - HCOOH(1) E = -0.20V Which of the following substances oxidizes HCOOH(1)? Select one: O Pb2+ (aq) O Pb(s) O Zn2+ (aq) O Zn(s) Question 28 Use the following information to answer the next question. Not yet answered Marked out of 1.00 Entities that contain Cl 1. HCI 2. CIO2 3. Cl2 4. KCIOA When the above entities are placed in order from the substance in which chlorine has the highest oxidation number to the substance in which chlorine has the lowest oxidation number, the order is