
5to. Química Eva. Final 2da. U 2021

Quiz
•
Chemistry
•
11th Grade
•
Medium
Melissa Hernández
Used 4+ times
FREE Resource
15 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Determine la fórmula empírica de una sustancia que contiene 32,38% de sodio, 22,57% de azufre y 45,05% de oxígeno.
2.
OPEN ENDED QUESTION
5 mins • 1 pt
Calcular la composición porcentual del K, N y O en el nitrato potásico (KNO3)
EJEMPLO: _____% de K, ____% de N, ____% de O
Evaluate responses using AI:
OFF
3.
OPEN ENDED QUESTION
5 mins • 1 pt
Calcular la composición porcentual del azufre y del oxígeno en el dióxido de azufre (SO2)
EJEMPLO: _____% de S, ____% de O
Evaluate responses using AI:
OFF
4.
OPEN ENDED QUESTION
5 mins • 1 pt
Calcular la composición porcentual del hidrógeno y del oxígeno en el agua oxigenada (H2O2)
EJEMPLO: _____% de H, ____% de O
Evaluate responses using AI:
OFF
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
¿Cuál es la fórmula empírica de un compuesto formado por C con 85.45% e H con un 14.55%?
C2H3
CH3
C2H
CH2
6.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Determina la fórmula empírica de un compuesto que contiene 2,03% de H, 32,69% de S y 65,26% de oxígeno.
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Es la composición que representa la masa de cada elemento por cada 100 gramos del compuesto
La masa molar de un compuesto
La fórmula empírica de un compuesto.
La composición porcentual de un compuesto
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