标化合价2CrO3(红色)+3C2H5OH+3H2SO4====Cr2(SO4)3(绿色)+3CH3CHO+6H2O
1个回答
CRO3中CR化合价+6
CR2(SO4)3中CR化合价+3
CH3CH2OH和羟基相连的碳原子负二价
CH3CHO和羰基相连的碳原子零价
相关问题
判断还原剂3C2H5OH+2CrO3+3H2SO4==3CH3CHO+Cr2(SO4)3+6H2O
2C rO3+3C2H5OH+3H2SO4==Cr2(SO4)2+3CH3CHO+6H2O中还原剂是什么?
K2CrO7+CH3CH2OH+H2SO4==Cr2(SO4)3+CH3COOH+K2SO4+H2O
K2Cr2O7+CH3CH2OH+H2SO4--Cr2(SO4)3+CH3COOH+K2SO4+H2O
a K2Cr2O7(橙红色)+ b C2H5OH+ c H2SO4 ====d CR2(SO4)3(绿色)+ e CH3
2K2Cr2O7+3CH3CH2OH+8H2SO4--2Cr2(SO4)3+ 3CH3COOH+2K2SO4+11H2O
2K2Cr2O7+3C2H5OH+8H2SO4=2K2SO4+2Cr(SO4)3+3CH3COOH+11H2O是否为还原
2K2Cr2O7+3CH3CH2OH+8H2SO4=2Cr2(SO4)3+3CH3COOH+2K2SO4+11H2O 的
化学方程式配平2Cr(OH)3+3H2SO4====Cr2(SO4)3+6H2O这个方程式原型是Cr(OH)3+H2SO
酒精检测仪原理方程式是什么杂志上写的是2CrO3 +3C2H5OH +3H2SO4 ==Cr2(SO4)3+3CH3CH