Select the true statement for the following reaction: n2 + 3 h2 → 2 nh3 1. each n atom is reduced from 0 to +3. each h atom is oxidized from 0 to −1. 2. each n atom is reduced from 0 to −3. each h atom is oxidized from 0 to +1. 3. each n atom is oxidized from 0 to +3. each h atom is reduced from 0 to −1. 4. each n atom is oxidized from 0 to −3. each h atom is reduced from 0 to +1. 5. each n atom is reduced from +1 to −3. each h atom is oxidized from +1 to 0. 6. each n atom is oxidized from +1 to +3. each h atom is reduced from +1 to 0. 7. each n atom is oxidized from 0 to −6. each h atom is reduced from 0 to +2. 8. each n atom is reduced from 0 to −6