Ответ:
1 вариант
1) CuSO4+2NaOH → Cu(OH)2↓+Na2SO4
2) Na2CO3+2HCl → 2NaCl+CO2↑+H2O
3) NaOH+HCl → NaCl+H2O
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Ответ:
1 вариант
1) CuSO4+2NaOH → Cu(OH)2↓+Na2SO4
2) Na2CO3+2HCl → 2NaCl+CO2↑+H2O
3) NaOH+HCl → NaCl+H2O