Descubre los Elementos Químicos
2nd Grade
•10 Qs
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Descubre los Elementos Químicos
Quiz
•
Chemistry
•
2nd Grade
•
Practice Problem
•
Hard
SANTIAGO NUNO
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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 pura que consiste en átomos con el mismo número atómico.
Un elemento químico es una sustancia que puede ser descompuesta en átomos diferentes.
Un elemento químico es un compuesto formado por dos o más elementos.
Un elemento químico es una mezcla de diferentes sustancias.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuántos elementos químicos hay en la tabla periódica?
115
118
100
120
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el símbolo químico del oxígeno?
O
Ox
O2
O3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué elemento químico es esencial para la vida?
Oxígeno
Nitrógeno
Carbono
Hidrógeno
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el elemento más ligero?
Helio
Oxígeno
Hidrógeno
Carbono
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué elemento químico se usa para hacer joyas?
Oro y plata
Cobre
Hierro
Aluminio
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué gas es necesario para respirar?
Helio
Oxígeno
Nitrógeno
Dióxido de carbono
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