
Estequiometría de las reacciones
Authored by Andrea d
Chemistry
12th Grade

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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué ocurre con la cantidad de masa en una reacción química?
Aumenta
Disminuye
Permanece constante
Se altera
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Quién comprobó que la suma de la masa de los reactivos es igual a la suma de masa de los productos?
A. L. Lavoisier
Joseph Louis Proust
John Dalton
Amadeo Avogadro
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué ajuste estequiométrico tiene esta reacción? H2 + O2 --> H2O
1, 1, 1
2, 1, 2
2, 2, 2
1, 2, 1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3Na2SO4 indica que existen:
2 moles de iones de sodio
3 moles de iones de sodio
3 moles de átomos de azufre
4 moles de átomos de oxígeno
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Durante la reacción química la masa total de los reactivos es exactamente igual a la masa total de los productos, esta ley se relaciona con...
Ley de las proporciones definidas
Ley de las proporciones múltiples
Ley de Avogadro
Ley de la conservación de la masa
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cuando se ajusta probando, contando o ensayando los coeficientes numéricos apropiados se trata de
Redox
Ión electrón
Tanteo
Algebraico
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