
inorgánica23
Authored by vanesa fuchs
Chemistry
University
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10 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Entre los principales usos de compuestos de Boro encontramos:
aleante en acero
fabricación de vidrios de borosilicato
detergentes, jabones, suavizantes y desinfectantes
fertilizante
todas las opciones son correctas
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Cuáles de las siguientes afirmaciones son V para el nitruro de boro
es inestable térmicamente
tiene estructura de macromolécula
se usa como lubricante en seco y como aditivo en aceites
es aislante eléctrico
Ninguna de las anteriores es correcta
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Al reaccionar el cloruro de boro con el agua se obtiene:
B2O3 + HCl
H3BO3 + H2O
H3BO3 + HCl
BH3 + HCl
ninguna de las anteriores son correctas
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
2 Al2(OH)3 + 3 H2S
3 H2SO4 + 2Al
Al2O3 + 6H2 + 3SO2
ninguna de las anteriores es correcta
5.
OPEN ENDED QUESTION
10 mins • 1 pt
El Al como el Be son anfóteros, escribe una reacción que ejemplifique lo anterior para cada elemento
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6.
OPEN ENDED QUESTION
5 mins • 1 pt
Completa y balancea la siguiente ecuación química:
Al2O3 + HF
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7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Al disolver una sal de Al+3 el pH de la solución será:
ácido
básico
neutro
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