COMIPEMS
Authored by BLANCA CRUZ
Chemistry
10th Grade
Used 191+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tipo de enlace que se forma cuando dos átomos comparten un par de electrones
Metálico
Iónico
Covalente
No metálico
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El enlace que está constituido por iones positivos sumergidos en una nube de electrones móviles es:
Iónico
Metálico
Covalente polar
Covalente no polar
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Los productos de la reacción H2SO4(ac) +Ba(OH)2 --> BaSO4+H2O son:
H2SO4 y Ba(OH)2
BaSO4 y H2O
Ba(OH)2 y BaSO4
H2O y H2SO4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un ejemplo de una reacción de síntesis o de unión directa es:
HCl + NaOH ---->NaCl+H2O
Fe2O3+C-----> CO2+ Fe
Na +Cl2 ----> NaCl
KClO3 ------>KCl + O3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La reacción Zn +2HCl-----> ZnCl2+H2 pertenece al tipo denominado
Síntesis
Simple sustitución
Doble descomposición
Descomposición
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la siguiente ecuación química
O2 +4H ------>2H2O
El símbolo-----> significa
Correspondiente
Significa
Da como resultado
Es igual
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La sangre tiene un pH de 7.5, por lo que se clasifica como:
Acida
Neutra
Básica
Salina
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