
Estequiometría
Authored by Marcela Alsina
Chemistry
10th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
1.
Una ecuación balanceada o completa cumple la Ley de Lavoisier, la cual sostiene que:
La masa de los reactivos es mayor
Los reactivos y los productos son iguales
La masa de los productos es mayor
La materia no se crea ni se destruye, se transforma
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
2.
Para balancear una ecuación química, es necesario agregar _____ a los reactivos y productos
Exponentes
Coeficientes
Catalizadores
Subíndices
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
3.
En la reacción H2 + O2 = H2O. ¿Cuál es el producto?
O2
H2
H2O
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
4.
En la reacción Zn +HCl = ZnCl2. + H2. Indica los coeficientes estequiométricos que se utilizan para ajustarla, en el orden en el que aparecen las sustancias.
1,2,1,1
2,1,1,1,
1,2,1,2
1,1,1,1,
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
La reacción: 2 CO + O2 --> 2CO2
La reacción: 2 CO + O2 --> 2CO2
Es endotérmica
Está ajustada
Es de descomposición
No está ajustada
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
6 ¿Cuál es el ajuste de la reacción H2 + O2 --> H2O?
6 ¿Cuál es el ajuste de la reacción H2 + O2 --> H2O?
H2 + 2O2 --> 2H2O
H2 + 2O2 --> H2O
2H2 + O2 -->2 H2O
2H2 + 2O2 --> 2H2O
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
7 ¿De qué se conforma una reacción química?
Productos y factores
Reactivos y productos
Factores y reactivos
Moles y Moléculas
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