càlculo porcentual

Quiz
•
Chemistry
•
1st Grade
•
Medium
Magaly Suarez
Used 5+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la molécula de metano 5(CH4). , la cantidad de átomos es
1 átomos de carbono, 4 átomo de hidrógeno.
3 átomos de carbono, 4 átomos de hidrogeno
5 átomos de carbono, 20 átomos de hidrógeno.
20 átomos de carbono, 5 átomos de hidrógeno.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La fórmula molecular indica:
El número total de átomos por elemento
El número total de elementos que puede tener un compuesto
El número menor de elementos que puede tener un compuesto
La fórmula molecular es igual que la fórmula empírica
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
En la formula molecular CH4, el porcentaje de la masa del Hidrógeno es de...
25%
32.69%
65.25%
26.8%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la formula molecular CO2, el porcentaje de la masa del Carbono es de...
277.27%
300.05%
276.3%
470.94%
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La Composición Porcentual de un elemento en una molécula se calcula a partir del peso...................
Atomica
Particulas
Molecular
Porcentual
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Para hallar la composicion porcentual se usa el.................
Peso Atomico
Kilos
Litros
Mililitros
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