
Conocimientos previos de química
Authored by Romina Esponda
Chemistry
11th Grade

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10 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Las propiedades físicas de un sistema material se pueden observar sin alterar su ________.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuál de los siguientes es un cambio químico?
Oxidación de una manzana
Fusión del hielo
Evaporación del agua
Compresión de un gas
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Un proceso que absorbe calor del ambiente es…
Exotérmico
Neutro
Endotérmico
Isotérmico
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Qué ocurre si aumentamos la concentración de un reactivo en un sistema en equilibrio?
Se detiene
Se desplaza hacia los productos
Se desplaza hacia los reactivos
No afecta el equilibrio
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Las propiedades químicas de un material describen su capacidad de reaccionar y transformarse en otra sustancia.
Verdadero
Falso
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Las moléculas orgánicas están compuestas principalmente por:
Metales y ventas
Iones y gases
Polímeros inorgánicos
Carbono e hidrógeno.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Según el pH, ¿Cuál de estas sustancias es más ácida?
Amoniaco (pH 11)
Leche (pH 6.5)
Jugo de limón (pH 2)
Agua destilada (pH 7)
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