2º ESO cambios químicos 1
Quiz
•
Chemistry, Physics
•
8th Grade
•
Hard
José Javier Vida Sagrista
Used 25+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Un cambio de estado de la materia es un cambio:
físico
químico
depende de la sustancia
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Cuando el yodo (I2) sublima aparece un gas violeta. Es un cambio:
físico
químico
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Al mezclar un ácido con cinc, aparecer unas burbujas de hidrógeno. Se trata de un cambio:
químico
físico
no hay cambio de ningún tipo
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Son evidencias de un cambio químico:
disolución en agua
aparición de un precipitado
desprendimiento de un gas
aumento o disminución de la temperatura
cambio de estado
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Son cambios químicos:
formación de las nubes
quemado de leña
hervir agua
cocer un huevo
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La reacción química
está ya ajustadaverdadero
falso
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ajustar la reacción:
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