
EXAMEN N°2- QUÍMICA
Authored by STEFANIA OLIVEROS LONDONO
Chemistry
9th Grade
Used 2+ times

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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Un pH 7 nos indica que la solución es:
Neutra
Ácida
Básica
Alcalina
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Pedro al terminar de reaccionar dos compuestos químicos en un tubo de ensayo, intento agarrar el tubo con su mano pero no puedo porque estaba muy caliente al haber adicionado los reactivos y después de generar los productos, esto ocurrió porque la reacción que pedro realizo en el laboratorio fue:
Endotérmica
Exotérmica
Desplazamiento
Síntesis
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
El pH del jugo gástrico del estómago es igual a 1 , esto quiere decir que es:
ácido
básico
neutro
sal
4.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Al(s)+Cu(Ac)2+ ⟹ Al(Ac)3++Cu(s).
El agente oxidante es:
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Indique la alternativa correcta :
a) A mayor pH mayor acidez
b) A menor pH mayor acidez
c) A menor PH mayor alcalinidad
d) A mayor PH menor alcalinidad
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
El jugo de naranja debería poseer un pH cercano a :
a. pH3
b. pH 7
c.pH 10
d. pH6
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
La siguiente ecuación representa: Zn + HCl → ZnCl2 + H2
Ecuación de desplazamiento simple
Ecuación de doble desplazamiento
Ecuación de síntesis
Ecuación de producción
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