prueba de conocimientos química 2 p1
Quiz
•
Chemistry
•
9th - 12th Grade
•
Medium
Abigail y
Used 2+ times
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17 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Es la ley que promulga que la materia no se crea ni destruye, sólo se transforma
Ley de las proporciones definidas
Ley de las proporciones múltiples
Ley de la conservación
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Quien es el autor de la ley de las proporciones múltiples
Dalton
Richter
Lavoisier
Proust
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Es la unidad de medida que contiene tantas entidades elementales como átomos hay en 12 g de carbono 12
mol
litro
gramos
libra
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
a cantidad de partículas correspondiente a 6.022 x 1023 que hay en un mol, se conoce como
número de Lewis
número de masa
número atómico
número de Avogadro
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
La masa molar es la masa de un mol de sustancia expresada en gramos.
verdadero
falso
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
La estequiometría es el área de la química relacionada con los cálculos de las cantidades de reactivos y productos en una reacción química:
verdadero
falso
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Un contaminante es cualquier factor que altere las condiciones habituales de un ambiente determinado.
verdadero
falso
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