A 12. D 13. A 14. C 15. C 16. C D#NG 2

11. - BAI 17 DAP AN PP GIAI BAI TAP VE NHOM VA HOP CHAT
BAI 17 DAP AN PP GIAI BAI TAP VE NHOM VA HOP CHAT

11. A 12. D 13. A 14. C 15. C 16. C

D#ng 2: Ph(n )ng c+a Nhôm v5i dung d9ch HNO 3