Question

Urgente:Calcular o Nox.

39741997819791e043b01447b640b282.docx

Answer 1

$Ni_{2} (S O_{3} ) _{3}$
2 . 3 + 3S + 3 x 3 x (-2)
6 + 3 S - 18 = 0
3 S = 12
S = 12/3
S = 4 

$Zn(N O_{2} ) _{2}$
2 + 2 N + 2 x 2 x (-2) = 0
2 + 2N - 8 = 0
2N = 6
N = 3

$CO_{3} ^{-2}$
C + 3 (-2)
C -6 - 0
C = 6
C = 6 -2
C = 4

$NH_{4} ^{+1}$
N + 4 .1 = 0
N = - 4 + 1
N = -3

$Zn^{+2}$
Carga no íon, ou seja, +2.

K Cl
K -1 = 7
K = 1