QUIMICA2DIAGNOSTICA
Quiz
•
Science
•
2nd Grade
•
Practice Problem
•
Hard
Ana Silva
Used 4+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. Las representaciones Na, Cu, Al, Fe o Pb, corresponden a:
a) Fórmulas químicas
b) Símbolos químicos
c) Nombres de elementos
d) Nombres de compuestos
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. El numero atomico, reprsenta:
La cantidad de atomos de un elemento
La cantidad de electrones de un átomo
La cantidad de protones de un átomo
La cantidad de protones y neutrones de un átomo
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. El modelo mecánico cuantico, menciona que el electrón se mueve en nubes energeticas. identica los subniveles
2-4-6-8
L-M-N-K
S-P-d-F
Li-Na-K
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. La formula del compuesto denominado óxido cuproso es;
Cu2O
O2Cu
CuO
Cu2O3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5. LA FORMULA PARA EL OXIDO AURICO ES:
Au2O
OAu
AuO
Au2O3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6. El nombre del compuesto (ZnO), es :
Óxido de zinc
dióxido de zinc
óxido de zinc (III)
anhidrido de zinc
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7. el numero de oxidación del oxigeno en los oxidos ácidos es:
+2
-2
cero
-1
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