
2do BGU EVALUACIÓN SEGUNDA PARCIAL

Quiz
•
Chemistry
•
Professional Development
•
Easy

Geovana Jácome
Used 4+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
1. ¿Cuál es la composición porcentual de la sacarosa C12H22O11 ?
40% C, 30% H, 30% O
42.1% C, 6.4% H, 51.5% O
45% C, 50% H, 5% O
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
2. ¿Cuánto equivale 4 moles de carbono en átomos de carbono?
2.8 x 1024 átomos de carbono
5.2 x 1023 átomos de carbono
2.4 x 1024 átomos de carbono
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
3. ¿Cuál es el número de átomos de azufre presentes en 28 gramos de azufre?
8 x 1025 átomos de S
5.3 x 1024 átomos de S
5.3 X 1023 átomos de S
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
4. En cuál de las siguientes opciones hay solamente compuestos
CO, CO2, H2CO3
N, Ni
C, Cl, CCl4
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
5. Valor que indica la masa de un átomo, se obtiene de la tabla periódica
Volumen molar
Número de Avogadro
Masa molar
Masa atómica
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
6. ¿Qué conceptos incluye el estudio de la estequiometría?
Reacciones masa masa
Mol, masa molar, número de Avogadro
Molar, masa, número atómico, volumen
Todas las respuestas son correctas
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
7. La masa molar para el KMnO4 es:
65
158
125
130
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