b) Axit clohiđric ( clo ( nước Javen ( clorua vôi ( clo ( brom ( iot c) CaCO3 ( CaCl2 ( NaCl ( NaOH ( NaClO ( NaCl ( Cl2 ( FeCl3 ( AgCl
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b,
MnO2+ 4HCl -> MnCl2+ Cl2+ 2H2O
Cl2+ 2NaOH -> NaCl+ NaClO+ H2O
Cl2+ CaO -> CaOCl2
CaOCl2+ 2HCl -> CaCl2+ Cl2+ H2O
Cl2+ 2KBr -> 2KCl+ Br2
Br2+ 2NaI -> 2NaBr+ I2
c,
CaCO3+ 2HCl -> CaCl2+ CO2+ H2O
CaCl2+ Na2CO3 -> CaCO3+ 2NaCl
2NaCl+ 2H2O $\buildrel{{đpmn}}\over\longrightarrow$ 2NaOH+ H2+ Cl2
2NaOH+ Cl2 -> NaCl+ NaClO+ H2O
2NaClO -> 2NaCl+ O2
2NaCl $\buildrel{{đpnc}}\over\longrightarrow$ 2Na+ Cl2
2Fe+ 3Cl2 $\buildrel{{t^o}}\over\longrightarrow$ 2FeCl3
FeCl3+ 3AgNO3 -> Fe(NO3)3+ 3AgCl
