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HCl + NaOH
HCl + CaCO3—
H2S + ZnCl2 →
H2SO4 + Fe -


Răspuns :

Răspuns:

HCl + NaOH => NaCl + H2O

2HCl + CaCO3 => CaCl2 + H2O + CO2

H2S + ZnCl2 => 2HCl + ZnSO4

H2SO4 + Fe=> FeSO4 + H2