Which of the following is a balanced chemical equation?

2 Mg + HC1 → MgCl2 + H2

SO2 + O2 + 2 H2O → 4 H2SO4

2 Fe2O3 + 3 C → 4 Fe + 3 CO2

H2O2 → H2O + O2

Respuesta :

So2+o2+2h20›4h2so4 this is the write answer

Answer:

third one

Explanation:

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