
Reacciones químicas
Authored by Juan Pedro Quintanilla
Chemistry
9th - 12th Grade
Used 3+ times

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21 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Un cambio de estado es un
cambio químico
un cambio físico
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Una combustión es un
cambio químico
un cambio físico
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
A las sustancias iniciales de una reacción química se les denomina
productos
reactivos
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
A las sustancias finales de una reacción química se les denomina
productos
reactivos
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En una reacción química se mantiene
el número de átomos
en número de moléculas
la masa
el número de átomos y el número de moléculas
el número de átomos y la masa
6.
FILL IN THE BLANK QUESTION
20 sec • 1 pt
En la descomposición de 18 g de H2O se obtienen 10 g de H2 y ____ g de O2
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
En un experimento se observa que 6,48 g de sodio reaccionan completamente con 10 g de cloro. En otra experiencia se observa que 4,93 g de sodio reaccionan con ___ g de cloro. Aplica la ley de Proust.
13,1
7,61
8,19
2,21
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