
Lección de Química
Authored by RAMIRO PAREDES
Chemistry
12th Grade
Used 9+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
. ¿Qué propiedad periódica aumenta de izquierda a derecha en un mismo período de la tabla periódica?
Radio atómico
Masa atómica
Electronegatividad
Conductividad
2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
. ¿Cuál es la unidad de medida de la temperatura en el Sistema Internacional (SI)?
Grado Fahrenheit
Kelvin
Grado Celsius
Rankine
3.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
¿Qué tipo de enlace se forma cuando un metal dona electrones a un no metal?
Enlace covalente
Enlace metálico
Enlace iónico
Enlace mixto
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de los siguientes elementos pertenece al grupo de los metales alcalinos?
Calcio (Ca)
Potasio (K)
Magnesio (Mg)
Hierro (Fe)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la cantidad de moles en 18 g de agua (H₂O)? (Masa molar H₂O = 18 g/mol)
1 mol
2 mol
0.5 mol
9 mol
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuántos átomos hay en 2 moles de oxígeno molecular (O₂)? (NA = 6.022 × 10²³)
6.022 × 10²³ átomos
1.204 × 10²⁴ átomos
2.408 × 10²⁴ átomos
3.011 × 10²³ átomos
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de las siguientes es una propiedad física de los no metales?
Alta densidad
Maleabilidad
Poca conductividad eléctrica
Brillo metálico
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