CuSO4+2NaOH=Cu(OH)2+Na2SO4
NaOH+HNO3(как я поняла)=NaNO3+H2O
Na2Co3+Ca(OH)=CaCO3(осадок)+2NaOH
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CuSO4+2NaOH=Cu(OH)2+Na2SO4
NaOH+HNO3(как я поняла)=NaNO3+H2O
Na2Co3+Ca(OH)=CaCO3(осадок)+2NaOH