Examen Final Química 5to. Mecanica
Quiz
•
Chemistry
•
5th Grade
•
Hard
Azucena Barrios
Used 2+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Un mol es...
La cantidad de gramos que pesa una sustancia
La cantidad de partículas que contiene una sustancia
1 y 2
ninguna de las anteriores
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
1 mol de un elemento pesa...
la masa molar (atómica) de ese elemento
la masa molecular de ese elemento
el número de iones de ese elemento
el número de avogadro
3.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
¿Cuántos gramos de hidrógeno se encuentran en la reacción: 3H2 + N2 ----> 2NH3 ?
28 g
34 g
6 g
43 g
4.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
¿Cuántos gramos de amoniaco (NH3) se encuentran en la reacción: 3H2 + N2 ----> 2NH3 ?
34 g
6 g
28 g
43 g
5.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
¿Cuántos moles de nitrógeno elemental hay en la reacción:
3H2 + N2 ---> 2NH3
1 mol
3 moles
2 moles
4 moles
6.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
¿Cuál es la masa de 5 moles de agua?
18 g/mol
90 g/mol
50 g/mol
18 g/mol
7.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
¿Cuántos moles de hierro representan 25 g de Fe?
56 moles
0.35 moles
25 moles
0.45 moles
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