镁在空气中燃烧时，发生如下两个反应：3Mg+N2===Mg3N2，2Mg+O2===2MgO 则24 g镁在空气中燃烧可得产物的质量为 请选择ABCD:x/V3y9n(C*w:g-[/s:h5{6?,U,z
A．等于33.3 g9n(C*w:g-[/s:h5{6?,U,z
B．等于40 g9n(C*w:g-[/s:h5{6?,U,z
C．33.3 g～40 g9n(C*w:g-[/s:h5{6?,U,z
D．小于33.3 g或大于40 g9n(C*w:g-[/s:h5{6?,U,z