
PRUEBA OBJETIVA 2
Authored by Blanca Puig
Chemistry
8th Grade
Used 7+ times

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16 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Son ejemplos de unidades químicas
Volumen molar, mol y presión
Mol, presión y volumen
Peso molecular, peso atómico y volumen molar
Temperatura, presión y peso atómico
2.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
¿Qué volumen ocupan 5 gramos de NH3 en CNTP?
9.58 L NH3
4.68 L NH3
6.58 L NH3
3.58 L NH3
3.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
¿Cuál es el número de moléculas que contienen 5 moles H2SO4
NOTA: Recuerde que el número de Avogrado tiene un valor de 6.022 x 1023
2.24 x 1024 moléculas H2SO4
2.76 x 1024 moléculas H2SO4
3.01 x 1024 moléculas H2SO4
4.28 x 1024 moléculas H2SO4
4.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
¿Cuántas moléculas de Ca (OH)2 contendrán 80 g del compuesto?
NOTA: Recuerde que el número de Avogrado tiene un valor de 6.022 x 1023
7.25 x 1023 moléculas Ca (OH)2
6.51 x 1023 moléculas Ca (OH)2
4.58 x 1023 moléculas Ca (OH)2
9.51 x 1023 moléculas Ca (OH)2
5.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
¿Cuántos átomos hay en 15 g de aluminio?
NOTA: Recuerde que el número de Avogadro tiene un valor de 6.022 x 1023
3.34 x 1023 átomos Al
8.45 x 1023 átomos Al
5.74 x 1023 átomos Al
9.67 x 1023 átomos Al
6.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
¿Cuántas moléculas gramo hay en 15 g de H2SO4 ?
0.50 moléculas gramo H2SO4
0.65 moléculas gramo H2SO4
0.38 moléculas gramo H2SO4
0.15 moléculas gramo H2SO4
7.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
¿Cuántos átomos gramo contendrán 30 g de aluminio?
1.11 átomos gramo Al
2.86 átomos gramo Al
3.04 átomos gramo Al
4.23 átomos gramo Al
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