
seminario final quimica
Quiz
•
Chemistry
•
1st - 12th Grade
•
Practice Problem
•
Hard
Alejandra Falla
Used 2+ times
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6 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Los gramos de hidróxido de sodio(PF=40) que se producen por la reacción de 46g de sodio(PA=23) según la reacción:
2 Na+ 2H2O 2NaOH+ H2
30
160
40
80
60
2.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Si a partir de 54 g de N2O5 (PF=108) sólo se obtiene 0,25 moles de HNO3 según la reacción N2O5 + H2O = 2HNO3 , entonces el rendimiento porcentual de la reacción es:
12.5%
50%
25%
75%
80%
3.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
El número de carbonos secundarios y terciariosrespectivamente, que hay en el siguiente compuesto
3 y 2
3 y 3
3 y 5
2 y 2
2 y 3
4.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
El compuesto orgánico que se forma es :CH2=CH-CH3 + HBr -> …………………
1-bromopropano
2-bromopropeno
Bromuro de propilo
2-bromopropino
2-bromopropano
5.
OPEN ENDED QUESTION
2 mins • 5 pts
nombrar
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6.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
La fórmula química del siguiente compuesto nitrogenado N, N dimetil-1-propanamina es:
CH3CH2CH2NH2
CH3NH2
CH3 CH2NHCH2CH3
CH3CH2 CH2NHCH3
CH3CH2CH2N(CH3)2
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