1) (CuOH)2CO3 + 4HCl = 2CuCl2 + CO2 + 3H2O
CuCl2 = Cu + Cl2
CuCl2 + 2NaOH = Cu(OH)2 + 2NaCl
Cu(OH)2 = CuO + H2O
2) 2Al + 2NaOH + 6H2O = 2Na[Al(OH)4] + 3H2
2Na[Al(OH)4] + H2SO4 = Na2SO4 + 2Al(OH)3 + 2H2O
Al2(SO4)3 + 6NaOH = 2Al(OH)3 + 3Na2SO4
Al(OH)3 + 2NaOH = Na[Al(OH)4]
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Verified answer
1) (CuOH)2CO3 + 4HCl = 2CuCl2 + CO2 + 3H2O
CuCl2 = Cu + Cl2
CuCl2 + 2NaOH = Cu(OH)2 + 2NaCl
Cu(OH)2 = CuO + H2O
2) 2Al + 2NaOH + 6H2O = 2Na[Al(OH)4] + 3H2
2Na[Al(OH)4] + H2SO4 = Na2SO4 + 2Al(OH)3 + 2H2O
Al2(SO4)3 + 6NaOH = 2Al(OH)3 + 3Na2SO4
Al(OH)3 + 2NaOH = Na[Al(OH)4]