
AGOSTO- 2°- CIENCIA Y TECNOLOGIA 2
Authored by Judith Fabian
Chemistry
1st Grade
Used 1+ times

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4 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Verifica la velocidad de las proposiciones según la reacción química:
En la ecuaciones quimica existe transferencia de electrones(REDOX)
Es un reacción química homogénea
Es un reacción química metátesis
El azufre sólo se oxida
El hidrógeno cambia a su estado de oxidación
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Relaciona el compuesto con el enlace que corresponda.
I. NaCl a. Enlace covalente polar
II. b. Enlace iónico
III. c. Enlace covalente apolar
Ib ; IIc ; IIIa
Ib ; IIa ; IIIc
Ia ; IIc ; IIIb
Ia ; IIb ; IIIc
Ic ; IIb ; IIIa
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vertiendo agua sobre carburo de alumnio se obtiene la reacción:
12
13
9
14
7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Del siguiente enlace químico:
Las afirmaciones son correctas, excepto:
I. Existe 4 pares de electrones libres.
II. Tiene 2 enlaces covalentes normales apolares.
III. Posee 2 pares de electrones enlazantes.
IV. Contiene 2 enlaces covalentes normales polares. V. Es un enlace covalente.
IV
V
I
II
III
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