Question

oxidation state of cu(no3)2

Answer 1

⏩The first step is jot down the charges of the elements since it is an ionic bond. Cu=+2, N=+5, O=-2.

⏩Simply add the numbers based on the formula:

▶️0= +2 (2(+5) + 2×3(-2))

▶️0= +2 (+ 10 - 12)

▶️0=0

⏺️Therefore , The above maths clearly proves that the charges of the elements in the ionic bond is equal to Cu=+2, N=+5, O=-2 Hence, it is the oxidation number.