Question

how to calculate the oxidation number of Mg(NO3)2.....


plz answer fast

Answer 1

Let Mg=x
x+(-1*2)=0
x-2=0
x=2

Answer 2

Explanation:

Standard oxidation numbers of some elements are known. For example, Mg = +2 and O = -2. Use “x” for the unknown oxidation number; in this case N.

So,

1(2) + 2(x) + 6(-2) = 0

then solve for x.

2 + 2x -12 = 0

2x - 10 = 0

2x = 10

x = 5

Thus, the oxidation number of N is +5. The convention is to write the sign of the charge, followed by its value.