
Examen química segundo
Authored by Ciencias Naturales
Science
11th Grade
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6 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
El método que consiste en transferencia de electrones, en las que las especies químicas que pierden uno o más electrones se oxidan y, por el contrario, las que ganan uno o más electrones se reducen:
Algebraico
REDOX
Tanteo
Ion Electrón (medio ácido o básico)
2.
FILL IN THE BLANK QUESTION
15 mins • 2 pts
Balancear la siguiente ecuación química por el método algebraico
FeS + O2 → Fe2O3 + SO
3.
FILL IN THE BLANK QUESTION
15 mins • 2 pts
Balancea la siguiente ecuación por método algebraico
HNO2 + KI + HCl → I2 + N2 + KCl + H2O
4.
FILL IN THE BLANK QUESTION
15 mins • 2 pts
Balancea la siguiente ecuación método de REDOX
HNO3 + H2S ⇨ NO + S + H2O
5.
FILL IN THE BLANK QUESTION
15 mins • 3 pts
Balancear la siguiente ecuación método de REDOX
KMnO4 + Na2SO3 + H2SO4 → K2SO4 + MnSO4 + Na2SO4 + H2O
6.
FILL IN THE BLANK QUESTION
15 mins • 1 pt
Balancea la siguiente ecuación por método algebraico
HNO3 + Zn → NH4NO3 + Zn (NO3)2 + H2O
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