C 72. A 73. A 74. C 75. A 76. A 77. D 78. C 79. B 80. B

71. - BAI 3 DAP AN BIEN LUAN CTCT CUA HCHC
Hóa học BAI 3 DAP AN BIEN LUAN CTCT CUA HCHC

71. C 72. A 73. A 74. C 75. A 76. A 77. D 78. C 79. B 80. B