REACCIONES QUÍMICAS 1ro B
Quiz
•
Science
•
2nd - 4th Grade
•
Practice Problem
•
Hard
ELIZABETH Espillico
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19 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Una reacción química es;
Las moléculas se destruyen
Un proceso que no produce cambios
Transformaciones químicas de las sustancias
Transformaciones físicas de las sustancias
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
La siguiente imagen corresponde a una :
Formula química
Símbolo químico
Ecuación química
Productos
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Después de desarrollar el experimento entre el polvo de hornear y el vinagre.
¿Qué compuesto químico está presente en el globo?
Acetato de sodio
Agua
Dióxido de carbono
Ácido acético
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Observa la ecuación química e indica a los reactantes:
2Fe + O2 → Fe2O3
Fe2O3
2Fe + O2
Fe + O2
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
La imagen representa una ecuación química, en la cual los productos son:
CH4 + 2O2
CO2 + 2H2O
CH4 + 2O2 CO2 + 2H2O
CO2 + H2O
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
la formula química del bicarbonato de sodio es
NaHCO₃
NaHCO2
NaCO₃
NaHCO
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Los compuestos químicos se representan mediante
Símbolos químicos
Ecuaciones químicas
Formula química
Productos
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