July 2023 2 3 Report
Balancear las siguientes ecuaciones químicas, usando el método del
tanteo.
a) HCl + Fe → FeCl 3 + H 2
b) Al + O 2 → Al 2 O 3
c) Fe + O 2 → Fe 2 O 3
d) Ca + HCl → CaCl 2 + H 2
e) P 2 O 5 + H 2 O → H 3 PO 4
f) MgS + AlCl 3 → MgCl 2 + Al 2 S 3
g) KClO 3 →KClO 4 + KCl + O

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