5 . PaccraBbre CuCl_(2)+AgNO_(3)=AgCl+Cu(NO_(3))_(2) Al+O_(2)=Al_(2)O_(3)

The first equation is a double displacement reaction between copper(II) chloride and silver nitrate, resulting in the formation of silver chloride and copper(II) nitrate. The balanced chemical equation for this reaction is:<br /><br />$CuCl_{2}+2AgNO_{3}=2AgCl+Cu(NO_{3})_{2}$<br /><br />The second equation is a synthesis reaction between aluminum and oxygen, resulting in the formation of aluminum oxide. The balanced chemical equation for this reaction is:<br /><br />$4Al+3O_{2}=2Al_{2}O_{3}$