CH3-(C=O)-H断的是碳氢键就在最后那括号后边,根据产物CH3CHO+2Ag（NH3）2OH---CH3COONH4+2Ag↓+3NH3↑+H20,配平根据CH3CHO中氢+1价,氧-2价,知平均碳价态-1价,而醋酸铵CH3COO-,中碳平均0价,所以两个碳上升2价,银离子...