
QUÌMICA BÁSICA I
Authored by Ronald Moreira
Chemistry
University
Used 6+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Son los cuatro elementos básicos que conforman la materia.
ADN, ARN, gen, célula
C, H, O, N
Ca, He, Ni, Pb.
NaCl, NaOH, GaAs, H2CO3.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Creador de la ley de la conservación de la materia.
Antonie Lavoiser
Louis Pasteur
Joseph Thompson
John Dalton
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sustancias conformadas por dos componentes, el disolvente y el soluto.
reacción molecular
disoluciones
composición
gases nobles
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tipo de mezcla en la que se puede distinguir un elemento del otro.
mezclas difrenciales
mezcla heterogéneas
mezclas impuras
mezclas homogéneas
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elemento primario de la composición química de los cuerpos:
compuesto
molécula
átomo
elemento
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Es el número de protones o partículas positivas del núcleo, y es la que caracteriza y diferencia a un elemento de los demás:
número atómico
masa atómica
valencia
gramos-mol
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cuando un átomo pierde o gana electrones y su carga queda equilibrada con carga positiva es un:
ion positivo o catión
ion negativo o anión
ion neutro
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