4º ESO: CANTIDAD DE MATERIA
Quiz
•
Science
•
10th Grade
•
Medium
Ana Web
Used 2+ times
FREE Resource
13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuántos moles hay en 90 gramos de agua (H₂O)?
8 moles
5 moles
2 moles
4 moles
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sabiendo que las masas del C y del O son respectivamente 12 y 16. La masa molar del CO₂ es:
32 g/mol
44 g/mol
28 g/mol
48 g/mol
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Qué representa un mol de cualquier sustancia?
La masa en gramos de una molécula
El volumen en litros de un gas
6.022 × 1023 partículas
La masa atómica en gramos
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
En 2.5 moles de NaCl, ¿Cuántos iones hay en total?
1.51 × 1024 iones
3.01 × 1024 iones
6.022 × 1023 iones
2.5 × 1023 iones
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La unidad SI para cantidad de materia es:
Gramos
Átomos
Litros
Mol
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Si tienes 4.5 moles de aluminio (Al), ¿cuántos átomos hay?
2.71 × 1024átomos
1.35 × 1024 átomos
4.5 × 1023 átomos
6.022 × 1023 átomos
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Qué masa tiene un mol de moléculas de oxígeno (O₂)?
16 gramos
32 gramos
48 gramos
24 gramos
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