Determinação de NOX

Determinação de NOX

9th - 12th Grade

10 Qs

quiz-placeholder

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Determinação de NOX

Determinação de NOX

Assessment

Quiz

Chemistry

9th - 12th Grade

Hard

Created by

JR Matiello

Used 28+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Os NOX do enxofre em H2S, S8 e Na2SO3 são, respectivamente,

+2, -8 e -4.

-2, zero, e +4.

-2, zero, e -4.

-2, +8 e +4.

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Os NOX do cloro em KClO2, Ca(ClO)2, Mg(ClO3)2 e Ba(ClO4)2 são, respectivamente,

+3, +2, +4 e +6

+3, +1, +5 e +6

-3, -1, -5 e -7

+3, +1, +5 e +7

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A soma algébrica dos números de oxidação do iodo nas substâncias NaIO, NaI, NH4IO3 e I2 é:

3

4

5

6

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

No composto Mn2O3, o manganês apresenta número de oxidação igual ao do fósforo no composto:

H3PO2

H3PO4

H4P2O7

H4P2O5

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Nos íons: NO31-, IO41-, Cr2O72-, P2O74-, S2O82-, o NOX dos elementos ligados ao oxigênio são:

+5; +5; +7; +6; +7

+6; +7; +5; +5; +7

+7; +5; +6; +5; +7

+5; +7; +6; +5; +7

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Os NOX dos elementos destacados: HCOOH, BaO2, BeH2, K2S, são, respectivamente

+2; -2; -1; -2

+2; +2; -1; -2

+2; +4; +1; +2

-2; +2; +1; -2

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

O NOX dos halogênios nos compostos KBr, NaIO3, F2 e Cl2O3 é, respectivamente:

+1; +3; 0; +5

-1; +5; 0; -3

-1; +5; 0; +3

-1; -3; 0; -5

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