Descubre los Elementos Químicos
Authored by ALDERZY CARMONA
Chemistry
2nd Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué es un elemento químico?
Un elemento químico es una sustancia que puede ser dividida en partes más pequeñas.
Un elemento químico es una mezcla de diferentes átomos.
Un elemento químico es un compuesto formado por moléculas.
Un elemento químico es una sustancia pura compuesta por átomos con el mismo número atómico.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuántos elementos hay en la tabla periódica?
115
100
118
120
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el símbolo del hidrógeno?
H
He
O
N
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué elemento tiene el símbolo O?
Oganesón
Oro
Osmio
Oxígeno
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el elemento más ligero?
Carbono
Hidrógeno
Oxígeno
Helio
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué elemento es esencial para la vida?
Oxígeno
Carbono
Nitrógeno
Hidrógeno
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué gas es necesario para respirar?
Dióxido de carbono
Nitrógeno
Helio
Oxígeno
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