5to. parcial química.
Quiz
•
Chemistry
•
8th Grade
•
Medium
Sadie baez
Used 2+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de los siguientes es un ejemplo de una reacción de síntesis?
HCl + NaOH → NaCl + H₂O
2H₂ + O₂ → 2H₂O
2KClO₃ → 2KCl + 3O₂
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de las siguientes opciones representa una reacción de combustión?
CaCO₃ → CaO + CO₂
Zn + 2HCl → ZnCl₂ + H₂
CH₄ + 2O₂ → CO₂ + 2H₂O
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En una reacción de descomposición, una sustancia:
Se combina con otra
Se descompone en dos o más sustancias
Cambia de estado físico
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Una reacción de desplazamiento simple es aquella en la que:
Un elemento reemplaza a otro en un compuesto
Dos compuestos intercambian elementos
Un compuesto se divide
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En una reacción de doble sustitución:
Se forma un solo producto
Se produce un gas
Los elementos cambian posiciones entre dos compuestos
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué tipo de reacción ocurre cuando se combinan ácido clorhídrico y bicarbonato de sodio?
Síntesis
Combustión
Ácido-base
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es un factor que afecta la rapidez de una reacción?
Presión atmosférica
Color de la sustancia
Concentración de los reactivos
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