(1)MgCl 2+Ca(OH) 2="==" Mg(OH) 2+ CaCl 2;(2)AC(3)物理变化(4)③
(5)2NaCl+2H 2O
===2NaOH+2H 2+Cl 2; (6)NaHSO 3+HCl===NaCl+SO 2+H 2O ;
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(1)MgCl 2+Ca(OH) 2="==" Mg(OH) 2+ CaCl 2;(2)AC(3)物理变化(4)③
(5)2NaCl+2H 2O
===2NaOH+2H 2+Cl 2; (6)NaHSO 3+HCl===NaCl+SO 2+H 2O ;
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