Cálculo de Nox 1- Nos elementos abaixo, indique o Nox dos elem...

N= -3

-3×2= -6

S+6

3)K=+1

Cr2O7=-1

O=-2

-2×7=-14

-14÷2= -7

Explicação:

-7+1=-6

Cr= 6

4)HClO4

H +1

O -2

-2×4=-8

-8 +1= -7

Cl= -7

1)KO

K= +1

O= -1

2)P2O5

O=-2

P=+5

10) HAs

H+1

As -1

8) H2SO4

H+1

O-2

-2×4 +2 =-6

S= 6

9)H2SO3

H+1

O -2

-2×3+2=-4

S=4

7) K3P2O7

K+1

O-2

-2×7 =-14

-14÷2=-7

-7+3 = -4

P=4

6) Na2SO4

Na+1

O-2

-2×4= -8

S=6

15) NaS2O3

Na +1

O-2

-2×3 ÷2=-3

S=+3

13)HClO3

H+1

O -2

-2×3= -6

-6+1=-5

Cl= +5

12)KMnO4

K+1

O-2

-2×4=-8

-8+1=-7

Mn= +7