下列试剂中,能同时鉴别六种未知溶液Na 2 S、Na 2 S 2 O 3 、Na 2 SO 4 、Na 2 SO 3 、Na 3 SbS 3 和Na 2 SiO 3 的试剂是。
A.
NH 3 ·H 2 O
B.
BaCl 2 (aq)
C.
稀盐酸
D.
AgNO 3 (aq)
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
皮皮学刷刷变学霸
举一反三
【简答题】A frame of 1500 bytes travel through five switches along the path. Each link has a bandwidth of 100 Mbps, a length of 100 m, and a propagation speed of 2 × 10 8 m/sec. Assuming a queuing and processin...