
Química - Cuarto - Regular 2020 II
Authored by Helí Gonzales
Chemistry
10th - 12th Grade
Used 5+ times

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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En el siguiente proceso químico: 2K + Br2 → 2KBr, indique V o F:
( ) El potasio se oxida
( ) Cada átomo de bromo gana 1 electrón
( ) El agente reductor es el Br2
( ) Cada mol de potasio pierde 6,023 x 1023 electrones
VVVV
VVFV
FVVV
VFFV
FVVF
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El nombre IUPAC del compuesto: PbH4 es:
Ácido plúmbico
Hidróxido plúmbico
Hidruro tetraplúmbico
Tetrahidruro de plomo
Tetraplomuro de hidrógeno
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Indique la relación correcta:
K2SO4: acido oxácido
NaOH: hidróxido no metálico
NaOH: hidróxido no metálico
NH4NO3 : Sal oxisal
CO2 : óxido básico
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La fórmula del Hipoclorito de sodio es
NaCIO
NaCIO2
NaCIO3
NaCI
NaCIO4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se tiene las siguientes relaciones fórmula – nombre. La relación correcta es:
SO3 : Trióxido de azufre
NaSO3: Hiposulfito de sodio
HCI: Ácido clórico
HNO3 : Ácido nitroso
K2CrO4: Dicromato de potasio
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si el anión sulfato es SO4-2 . La fórmula del sulfato de hierro (III) es:
FeSO4
Fe2SO4
Fe2(SO4)3
Fe3(SO4)2
Fe3(SO4)3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En el siguiente proceso redox: NiO + H2 → H2O + Ni. El agente reductor, es:
NiO
H2
H2O
Ni
O
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