... 4: 2 231: 4 2 0 ,22 4x 2 * (1)99 2 2 : 4 2 0 ,28 4x 2 * (2) 99− +− +↓↓= − => = −= − => = −OH ZnOH ZnaTN n n naTN n n n)8W 2 !I]I!(Q/4 2 ZMI(I]I1(Câu ... !"#!%&)*&+$!(! ,!(- ./(/ 01(Cách 1: ,2 3 24 56789*:7;<=3> 2 ?(@A!BCD;E 2 F?!5G 9@A!BCHTN1. ... !!J!! @!A)LM 2 5GN@A!;8OF;@!A GN@A!P*F;@A 2 QQ$ax+R I!MJAQQ$@!ax+I(!! @SATN2. I(!TRU7...