Which equation represents conservation of charger?
1)I- +2e- -->I2
2)2I- -->I2+2e-
3)Br2-->2Br- +2e-
4)Br+2e- -->Br-?
回答 (1)
1) is false.
Number of charges on the LHS = (-1) + 2(-1) = -3
Number of charges on the RHS = 0
2) is true.
Number of charges on the LHS = 2(-1) = -2
Number of charges on the RHS = 2(-1) = -2
3) is false.
Number of charges on the LHS = 2(-1) = -2
Number of charges on the RHS = -1
The answer: 2) 2I⁻ → I₂ + 2e⁻
收錄日期: 2021-04-18 18:30:32
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20200520064615AANEVbK
檢視 Wayback Machine 備份