Question

Rog ajutați-mă la efectuarea ex dat trebu coloana b),și c).

Answer 1

a)

4FeS+7O₂⇒2Fe₂O₃+4SO₂

4FeS₂+7O₂⇒2Fe₂O₃+4SO₂

Fe₂O₃+6HNO₃⇒Fe(NO₃)₃+3H₂O

Fe(NO₃)₃+3NaOH⇒Fe(OH)₃+3NaNO₃

2Fe(OH)₃⇒Fe₂O₃+3H₂O

2Fe₂O₃⇒4Fe+3O₂

b)

2Zn+O₂⇒2ZnO

ZnS+Na₂O⇒ZnO+Na₂S(2ZnS+3O₂⇒2ZnO+2SO₂)

ZnO+Na₂O⇒Na₂ZnO₂

Zn(OH)₂⇒ZnO+H₂O

ZnO+2HCl⇒ZnCl₂+H₂O

Na₂ZnO₂+4HCl⇒2NaCl+ZnCl₂+2H₂O

ZnCl₂+2NaOH⇒Zn(OH)₂+2NaCl

Zn(OH)₂+CaCl⇒ZnCl₂+Ca(OH)₂

Succes!Sper că te-am ajutat!