1er Parcial Química II
Quiz
•
Chemistry
•
2nd Grade
•
Medium
Rossana González
Used 2+ times
FREE Resource
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33 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Quién propuso la ley de la proporciones recíprocas?
Proust
Dalton
Richter
Wenzel
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Establece que los elementos que se combinan para formar compuestos, siempre lo hacen en proporciones de masa definida, constante y en relaciones sencillas.
Ley de Dalton
Ley de Ritchter
Ley de Prous
Ley de Wenzel
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Establece que: si dos elementos A y B se combinan, mientras la masa de A es constante, las distintas masas de B varían en una proporción de números enteros y decimales.
Ley de Richter
Ley de Prous
Ley de Dalton
Ley de Wenzel
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Establece que la masa de 2 elementos A y B que reaccionan con un tercer elemento C, guardan la misma proporción cuando A y B se combinan entre sí.
Ley de Richter
Ley de Proust
Ley de Dalton
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Permiten calcular cantidades de sustancias que participan en una reacción química.
Cálculos químicos
Cálculos estequiométricos
Cálculos normales
Cálculos de masa atómica
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cómo calculo la masa en gramos de cada elemento presente en una molécula?
A partir de su relación estequiométrica
A partir del número de moles
A partir de su peso atómico
A partir de su número de oxidación
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La suma de la masa (m) en gramos de cada elemento presente en una molécula se denomina:
Número de moles
Masa en gramos
Masa estequiométrica
Masa molar
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