[問題] 氧化數
H2CrO4
Cr的氧化數是多少?
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推
03/28 10:15, , 1F
03/28 10:15, 1F
推
03/28 11:28, , 2F
03/28 11:28, 2F
→
03/28 11:28, , 3F
03/28 11:28, 3F
→
03/28 11:28, , 4F
03/28 11:28, 4F
推
03/28 12:22, , 5F
03/28 12:22, 5F
→
03/28 15:42, , 6F
03/28 15:42, 6F
→
03/28 18:16, , 7F
03/28 18:16, 7F
→
03/28 18:17, , 8F
03/28 18:17, 8F
推
03/28 21:48, , 9F
03/28 21:48, 9F
→
03/28 23:04, , 10F
03/28 23:04, 10F
推
03/29 19:09, , 11F
03/29 19:09, 11F
→
11/09 10:08, , 12F
11/09 10:08, 12F
→
01/02 14:07,
5年前
, 13F
01/02 14:07, 13F
→
07/06 21:08,
4年前
, 14F
07/06 21:08, 14F