CHEM BALANCING EQUATION?

👨🏻‍🏫 學術台化學

[匿名]

2016-05-31 3:08 pm

更新1:

Balance the following oxidation-reduction reaction and indicate which atoms have undergone oxidation and reduction. ____Cu + ____HNO3 arrow ____Cu(NO3)2 + _____NO2 + _____H2O

回答 (1)

fooks

2016-05-31 4:34 pm

The balanced equation :
Cu + 4HNO₃ → Cu(NO₃)₂ + 2NO₂ + H₂O

The oxidation of Cu increases from 0 (in Cu) to +2 (in Cu(NO₃)₂). Cu undergoes oxidation.

The oxidation of N decreases from +5 (in HNO₃) to +4 (in NO₂). N undergoes reduction.

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