Ответ:
2Na+Cu(OH) 2= 2NaOH+Cu
2NaOH+FeSO4= Na2SO4+ Fe(OH)2
Na2SO4+2HCl= H2SO4+2NaCl
3NaCl=3Na+Cl3
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Ответ:
2Na+Cu(OH) 2= 2NaOH+Cu
2NaOH+FeSO4= Na2SO4+ Fe(OH)2
Na2SO4+2HCl= H2SO4+2NaCl
3NaCl=3Na+Cl3