Repaso
Authored by Alan Obed Tzuc Rejon
Chemistry
7th Grade
Used 4+ times
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22 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Las sustancias puras se clasifican en.
componentes y elementos
elementos y particulas
elementos y compuestos
fuego, aire, agua y tierra
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La sal común (NaCl) es..
un elemento
una mezcla heterogénea
un compuesto
una mezcla homogénea
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
El oxígeno atmosférico (O 2 ) se considera..
un elemento
una suspensión
una mezcla homogénea
un compuesto
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Este modelo atómico corresponde al modelo de:
Dalton
Thomson
Bohr
Rutherford
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Niels Bohr dedujo que los electrones se encuentran solos en orbitas llamados:
Niveles de energia
Subniveles
Nube de energia
Reempe
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Qué partículas encontramos dentro del núcleo de cualquier átomo?
Protones y electrones
Electrones
Protones y neutrones
Neutrones, protones y electrones
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La imagen muestra la representación del un elemento con el modelo atómico de Bohr, el elemento es
Potasio
Helio
Hidrógeno
Flúor
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