1 - Q - 04 - Masa atómica y molecular

Quiz
•
Chemistry
•
10th Grade
•
Medium
Willan abata
Used 6+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Llamamos unidad de masa atómica a la doceava parte de la masa de un tipo especial de átomo de carbono, el carbono 12, C. Su símbolo es u.
FALSO
VERDAD
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La masa atómica relativa de un elemento es la .................. de un átomo de este elemento expresada en unidades de masa atómica.
masa total
masa media
masa final
Ninguna
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
La masa molecular relativa de un elemento o de un compuesto es la masa media de una de sus ...................expresada en unidades de masa atómica.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Un mol....
las masas atómicas de los elementos
el número de partículas en valor absoluto, aun para masas muy pequeñas,
es la cantidad de sustancia que contiene tantas partículas elementales (átomos, moléculas, iones...)
ninguna
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La masa molecular de un elemento o un compuesto, M, es el número de veces que una molécula contiene la unidad de masa atómica.
FALSO
VERDAD
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La masa molecular del agua H2O es:
H=1 x2 = 2 uma
0=16 x 1 = 16 uma
2
16
18
32
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Número de Avogadro
Un mol de átomos equivale a
6,022 x 1023 moleculas
6,022 x 1023 átomos
6,022 x 1023 uma
ninguna
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