1. NaOH + CuSO4 =
2. Na2CO3 + HNO3 =
3. BaCl2 + H2SO4 =
4. HCl + Ba(OH)2 =
5. AlCl3 + NaOH =
6. K2CO3 + H2SO4 =
7. NaOH + H2SO4 =

1. \[2NaOH+CuSO_4\rightarrow Cu(OH)_2\downarrow+Na_2SO_4\]

2. \[Na_2CO_3+2HNO_3\rightarrow2NaNO_3+H_2O+CO_2\uparrow\]

3. \[BaCl_2+H_2SO_4\rightarrow BaSO_4\downarrow+2HCl\]

4. \[2HCl+Ba(OH)_2\rightarrow BaCl_2+2H_2O\]

5. \[AlCl_3+3NaOH\rightarrow Al(OH)_3\downarrow+3NaCl\]

6. \[K_2CO_3+H_2SO_4\rightarrow K_2SO_4+H_2O+CO_2\uparrow\]

7. \[2NaOH+H_2SO_4\rightarrow Na_2SO_4+2H_2O\]

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