Pre-parcialito de TP de Reacciones Químicas
Quiz
•
Science
•
1st - 10th Grade
•
Practice Problem
•
Medium
Sabrina Le Pera
Used 5+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1. ¿Qué tipo de sustancia es el KClO3?
Reductora
Oxidante
Corrosiva
Inocua
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1. ¿Qué sustancias no se deben mezclar con KClO3?
combustibles
comburentes
agua
oxígeno
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Al manipular el KClO3 se debe
mantenerlo alejado de las fuentes de calor
evitar el contacto con la piel, ojos y mucosas, utilizando el equipo de protección adecuado
primeras dos opciones correctas
primeras dos opciones incorrectas
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
El NaCl es una sustancia
ácida
básica
neutra
anfiprótica
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La fenolftaleína vira de incoloro a fucsia si el pH del medio es
ácido
básico
neutro
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cuando el anión CrO42- reacciona con el catión Ba2+ se forma un precipitado de color
rojo
blanco
amarillo
naranja
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La reacción entre el Cr2O72- y el CrO42- es
lenta
irreversible
de combustión
ninguna es correcta
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