Reacciones químicas FPB

Quiz
•
Chemistry, Science
•
9th Grade
•
Hard
José Javier Vida Sagrista
Used 6+ times
FREE Resource
21 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Selecciona, entre los siguientes, los cambios químicos:
digestión de un chuletón de buey
una nevada en invierno
quemar madera en la chimenea
oxidación de una chapa de acero
rotura del cristal de una ventana
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Selecciona los que son cambios físicos:
desmenuzar un terrón de azúcar
disolver en agua un terrón de azúcar
digerir un terrón de azúcar
lanzar contra el suelo un terrón de azúcar
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Las sustancias antes y después de una reacción química son, siempre, diferentes
verdadero
falso
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
En una reacción química, los productos se transforman en reactivos
Verdadero
Falso
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Las sustancias que hay antes de producirse la reacción se llaman:
Reactivos
Productos
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Siempre que se mezclan dos sustancias se produce una reacción química
verdadero
falso
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la fotosíntesis se:
produce oxígeno
consume oxígeno
produce una llama y calor
produce dióxido de carbono
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