Which equation represents conservation of charger? 1)I- +2e- -->I2 2)2I- -->I2+2e- 3)Br2-->2Br- +2e- 4)Br+2e- -->Br-?

2020-05-20 2:46 pm

回答 (1)

2020-05-20 4:08 pm
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⁻


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