EXAMEN de cn unidad 3 de noveno 2° trim
Quiz
•
Science
•
9th Grade
•
Hard
Linda Barahona
Used 1+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
¿Cuáles son los factores que influyen en una reacción química?
Temperatura, presión, concentración de reactivos, presencia de catalizadores
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Una característica de las sustancias ácidas es:
pH menor a 7 y liberación de iones de hidrógeno, solubles en agua.
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sustancia en la papa que sirve como catalizador, acelerando una reacción química:
4.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Un factor que contribuye que cianobacterias desequilibren químicamente el ambiente del lago de Coatepeque en Santa Ana es:
5.
OPEN ENDED QUESTION
3 mins • 1 pt
¿Es posible controlar los factores que afectan el equilibrio químico? Explique
Evaluate responses using AI:
OFF
6.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
En el experimento de las burbujas lentas, el factor que influyó en la reacción fue:
7.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
pH significa:
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