1 ) 4HCl+MnO_(2)=MnCl_(2)+Cl_(2)+2H_(2)O 2) 2Na+Cl_(2)=2NaCl 3) 2HCl+MnO=MnCl_(2)+H_(2)O 4) Na_(2)S+Cl_(2)=2NaCl+S 5) 2NaCl=2Na+Cl_(2)

1) $4HCl+MnO_{2}=MnCl_{2}+Cl_{2}+2H_{2}O$<br />2) $2Na+Cl_{2}=2NaCl$<br />3) $2HCl+MnO=MnCl_{2}+H_{2}O$<br />4) $Na_{2}S+Cl_{2}=2NaCl+S$<br />5) $2NaCl=2Na+Cl_{2}$<br /><br />1) This is a redox reaction where manganese dioxide (MnO2) is reduced to manganese chloride (MnCl2) by hydrochloric acid (HCl), producing chlorine gas (Cl2) and water (H2O).<br />2) This is a synthesis reaction where sodium (Na) reacts with chlorine gas (Cl2) to form sodium chloride (NaCl).<br />3) This is a redox reaction where manganese monoxide (MnO) is reduced to manganese chloride (MnCl2) by hydrochloric acid (HCl), producing water (H2O).<br />4) This is a displacement reaction where sodium sulfide (Na2S) reacts with chlorine gas (Cl2) to form sodium chloride (NaCl) and sulfur (S).<br />5) This is a decomposition reaction where sodium chloride (NaCl) decomposes to form sodium (Na) and chlorine gas (Cl2).