Activity 3: LEOGER Directions: Read carefully the given statements, Determine whether oxidation or reduction is described. Write your answer on the space provided. 1. An element changes oxidation number +5 to +2. 2. Oxygen attained oxidation number of 0 from -2. 3. Hydrogen have an initial oxidation of +1 and later had 0 after the reaction. 4. An element losses 2 electrons after a reaction. 5. Chlorine reaches-1 charge after gaining an electron. 6. An element undergoes change of oxidation number from +3 to 0. 7. Copper changes from +2 to 0. 8. From Cl2 having 0 as oxidation number. CI later had -1 after combining with Na. 9. Lithium from its free state to LICI. 10. Carbon in CH4 before combustion and Carbon in CO2 after combustion.