①Zn+CuCl2=ZnCl2+Cu; ②Cu+2AgNO3=Cu(NO3)2+Ag; ③Cl2+2NaBr=2NaCl+Br2; ④I2+Na2S=2NaI+S; ⑤Br2+2KI=2KBr+I2
A Cl2+2NaI=2NaCl+I2 B I2+2KBr=2KI+Br2
C Br2+Na2S=2NaBr+S D Cl2+2K2S=2KCl+S.
微信扫码预览、分享更方便