
prueba para perla
Quiz
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Others
•
5th Grade
•
Hard
Innabel Innabel
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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¡
¿Por qué los elementos del grupo 1A no se encuentran libres en la naturaleza?
Porque son altamente reactivos químicamente.
Porque son químicos
Porque son óxidos
Porque son insolubles
Porque son elementos del grupo 1A
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el elemento más abundante del grupo 1A en la naturaleza?
Ácido
Cloro
Sodio
Magnesio
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
:
¿Por qué los elementos del grupo IIA no existen en estado natural?
Porque son elementos gaseosos
Porque no son muy activo químicamente
Porque son sales
Porque son demasiado activos químicamente
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qué sucede cuando se intercambian las valencias en las combinaciones binarias?
Se suman las valentías para obtener el número total de átomos
Se intercambian las valencias para determinar los subíndices de los elementos en la fórmula química.
Se suman los elementos químicos
Se restan las las valencias para determinar los subindices
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
escriba en nomenclatura tradicional de:
Na2O
Oxido Sódico
Monóxido de diSodio
Oxido de Sodio (I)
Oxido de Sodoso
6.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Oxidos
¿Como es su fórmula del oxido de azufre?
7.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Hidruro
¿Como se nombra al siguiente hidruro?
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