
Examen de Química I
Quiz
•
Biology
•
11th Grade
•
Hard
lilisbet gallo
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23 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de las siguientes fórmulas corresponde al sulfuro de cobre (II)?
Cu₂S
CuS
CuS₂
Cu₂S₃
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de las siguientes fórmulas corresponde al óxido de hierro (II) ?
Fe₃O
FeO
Fe3O₂
Fe₂O₃
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La fórmula KClO₃ corresponde al:
Cloruro de potasio
Clorito de potasio
Clorato de potasio
Hipoclorito de sodio
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El nombre del compuesto CaH₂ es:
Ácido de calcio
Hidruro de carbono
Hidruro de calcio
Ácido cálcico
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dada la presión de un gas en 650 mmHg, conviértela en atmósferas: (1 atm=760mmHg)
0.795 atm
0.760 atm
0.855 atm
0.585 atm
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un gas de oxígeno se encuentra almacenado en un cilindro de 95 L y una presión de 60 atmósferas. Al abrir la válvula a la atmósfera se registra una presión de 0.982 atmósferas. ¿Qué volumen ocupará el oxígeno a esta presión? La temperatura no cambia.
5.80 × 10³ L
9.82 × 10³ L
3.45 × 10³ L
7.80 × 10³ L
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un volumen de 50 L de oxígeno gas se calientan de 23 °C a 250 °C a presión constante. ¿Cuál es el volumen final del gas a la temperatura más alta?
75.3 L
50.5 L
102.3 L
88.3 L
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