[[Hoá 10]Phản úng biến đổi halogen

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$NaCl \xrightarrow{đpnc}Na (A) + Cl_2 (B)$

$A+B: Na+Cl_2 \xrightarrow{t^o} NCl$

A-->C
$Na + H_2O \rightarrow NaOH+H_2$

B-->D
$Cl_2+H_2 \rightarrow HCl$


C+D : $NaOH+HCl \rightarrow NaCl+H_2O$


C-->E:
$NaOH+H_2SO_4 \rightarrow Na_2SO_4$


D-->F:
$HCl+Ba(OH)_2 \rightarrow BaCl_2+H_2O$

E+F: $Na_2SO_4+BaCl_2 \rightarrow NaCl+BâSO_4$
 
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