
QUIMICA
Authored by Alexander Coloma
Chemistry
11th Grade
Used 3+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Si un catión metálico se representa de la forma siguiente: 31 3 15 X es posible asegurar que el catión contiene:
15 electrones
16 electrones
18 electrones
28 electrones
2.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
El último electrón de un elemento A presenta los siguientes números cuánticos n = 4, l = 1, m = -1, s = -1/2, entonces el elemento A :
Pertenece al tercer periodo
Es un metal.
Es del grupo VI A.
Su ión presenta 2 electrones desapareados.
3.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
La fórmula que corresponde al perclorato de magnesio es:
Mg(ClO2)2
Mg(ClO3)2
Ca(ClO4)2
Mg(ClO4)2
4.
FILL IN THE BLANK QUESTION
1 min • 3 pts
Considerando la reacción de formación del amoniaco: N2 + 3 H2 2 NH3. Masas Atómicas: H = 1, N = 14. Para prepara 34 g de amoniaco, son necesarias:
5.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
La Teoría Cinético Molecular considera que:
Las moléculas son indestructibles.
Las fuerzas de atracción entre moléculas gaseosas no son despreciables.
En los choques entre moléculas no se pierde energía cinética.
Al reducir el volumen de un gas su presión se reduce.
6.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Una solución de Hidróxido de Calcio 0,3 N será: Masas Atómicas: H= 1 O= 16 Ca= 40
0,15 M
0,01 M
0,3 M
0,25 M
7.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
¿Cuál de las siguientes disoluciones acuosas forma una disolución reguladora cuando se mezclan los dos reactivos en cantidades apropiadas?:
HCl + NaCl
NaCN + NaCl
HCN + NaCl
NaCN + HCN
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