
tanteo
Authored by Casolabeto Casolabeto
Chemistry
11th Grade
13 Questions
NGSS covered
Used 21+ times

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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Los coeficientes para balancear por tanteo la siguiente ecuación química son:
___Zn + ____ HCl = ZnCl2 + H2
1,2
2,2
3,3
2,4
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Los coeficientes para balancear por tanteo la siguiente ecuación química son:
____ HCl + Ca(OH)2 = CaCl2 + ____ H2O
2,2
2,4
4,2
4,4
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Los coeficientes para balancear por tanteo la siguiente ecuación química son:
Al2O3 + __H2SO4 = Al2(SO4)3 + ___ H20
1,2
3,2
3,3
3,4
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Los coeficientes para balancear por tanteo la siguiente ecuación química son:
___ P + ___ O2 = ___ P2O3
2,4,2
4,3,2
3,4,2
4,2,2
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Los coeficientes para balancear por tanteo la siguiente ecuación química son:
___ Na + ____H2O = ___ NaOH + ___ H2
2,2,2,2
3,2,4,2
4,4,4,2
2,4,2,4
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Los coeficientes para balancear por tanteo la siguiente ecuación química son:
P2H5 + ____ H20 ___ H3PO4
2,2
3,2
4,2
2,3
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
¿Que sostiene el principio de conservación de la materia?
La materia se modifica para transformarse en nueva materia
La materia no se crea ni se destruye solo se transforma
La materia no se transforma, solo cambia de estado
Una reacción es un cambio químico
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