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是加成反应 CH3―CH=CH2 是还原剂 CH3CH2CHF2是还原产物 XeF4即是氧化剂又是还原剂
Pb(CH3COO)2+ H2S=== PbS↓+2CH3COOH Pb2++H2S ===PbS↓+2H+ Pb2++2CH3COO-+ H2S===PbS↓+2CH3COOH Pb2++2CH3COO-+2H++S2-===PbS↓+2CH3COOH
与金属钠反应: 2CH3CH2OH+2Na2CH3CH2ONa+H2↑ 与氧气的燃烧反应:2CH3CH2OH+O22CH3CHO+2H2O 与氧气的催化氧化:CH3CH2OH+3O22CO2+3H2O 与乙酸的酯化反应:CH3COOH+CH3CH2OHCH3COOCH2CH3
Pb(CH3COO)2+H2S==PbS↓+2CH3COOH Pb2++H2S==PbS↓+2H+ Pb2++2CH3COO-+H2S==PbS↓+2CH3COOH Pb2++2CH3COO-+2H++S2-==PbS↓+2 CH3COOH
NaHCO3溶液与醋酸:CO32- + 2CH3COOH ==2CH3COO- + H2O + CO2↑
碳酸氢铵溶液与NaOH溶液:H CO3- + OH-== H2O + CO32-
用醋酸除水垢:2CH3COOH + CaCO3 ==Ca2+ + 2CH3COO- + H2O + CO2↑
向NaHSO4溶液中逐滴加入Ba(OH)2溶液至呈中性:H+ + SO42- + Ba2+ + OH-== H2O + BaSO4↓
该反应不属于氧化还原反应 XeF4既是氧化剂,又是还原剂 反应中电子由Xe转移到C. 氧化剂与还原剂的物质的量之比为1:2
Pb(CH3COO)2+H2S==PbS↓+2CH3COOH Pb2++H2S==PbS↓+2H+ Pb2++2CH3COO-+H2S==PbS↓+2CH3COOH Pb2++2CH3COO-+2H++S2-==PbS↓+2 CH3COOH
CH3CH=CH2是还原剂
CH3CHFCH2F.既是氧化产物又是还原产物
XeF4被氧化
该反应不属于氧化还原反应
2CH3CH2OH + 2Na → 2CH3CH2ONa + H2↑