3ero A y B - Reacciones Químicas
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Medium
Ramona Estevez
Used 3+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
H2O (agua)
Na2O (óxido de sodio)
NaOH (hidróxido de sodio)
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cuáles son los elementos que intervienen en la reacción 2Mg + O2 --> 2MgO?
Manganeso y Oxígeno
Oxígeno y Manganeso
Magnesio y Oxígeno
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cómo se llama al número entero que se antepone a la fórmula de las sustancias en una ecuación?
Subíndice
Exponente
Coeficiente
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
La ganancia de electrones se denomina:
Oxidación
Reducción
Balanceo
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
La sustancia que se oxida es:
Agente reductor
Agente oxidante
Catalizador
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Los subíndices en la ecuación química representan:
Número de moléculas
Cantidad de átomos
Cantidad de reactivos
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Científico que formuló la ley de las proporciones múltiples:
Antoine Lavoisier
John Dalton
Joseph L. Proust
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