Examen Mensual 1 de 12mo del 3er trimestre
Quiz
•
Chemistry
•
12th Grade
•
Medium
RICARDO BLACKMAN
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23 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diga el tipo de reacción para: 2Al2O3 ---->4Al + 3O2
Doble desplazamiento
Simple desplazamiento
Ácido Base
Combinación o Síntesis
Descomposición
2.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Los g de HCl en 0.50 moles de esta sustancia (PM = 36 g/mol)
36 gramos
9 gramos
18 gramos
2.38 gramos
4.9 gramos
3.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
Determine el estado de oxidación del S en CaSO3
1+
2+
4+
3-
7+
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Si la diferencia de electronegatividad de un compuesto es 2.0 su tipo de enlace es
Covalente no polar
Iónico
Metálico
Covalente Polar
Coordinado
5.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Balancee la siguiente ecuación:
Mg + H3PO4 ----> H2 + Mg3(PO4)2
1 + 3 ----> 2 + 3
1 + 3 ----> 3 + 2
2 + 3 ----> 1 + 3
3 + 1 ----> 2 + 3
3 + 2 ----> 3 + 1
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
¿Cuál de los ejemplos presentados no es una mezcla heterogénea?
aceite en agua
Mezclar arena y piedra
tinta china
Hojuelas de maíz en la leche
ensalada de frutas
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Un Compuesto es
Sustancia heterogénea
Un átomo
Átomos unidos químicamente
Mezcla
Ninguna de las anteriores
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