

giúp mình mấy câu này với:
1. CH3COOH + NaOH -> CH3COONa + H2O
2. H2S + CuCl2 -> CuS + HCl
3. HBr + Ba(OH)2 -> BaBr2 + H2O
4. Mg(OH)2 + HCl -> MgCl2 + H2O
1. CH3COOH + NaOH -> CH3COONa + H2O
2. H2S + CuCl2 -> CuS + HCl
3. HBr + Ba(OH)2 -> BaBr2 + H2O
4. Mg(OH)2 + HCl -> MgCl2 + H2O