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高中化学元素关系图

硫(S)元素关系图重要关系:○9H2S→S:SO2、Cl2、Ca(ClO)2、Br2、I2、KMnO4、K2Cr2O7、KNO3、H2O、Fe3+、O2、浓H2SO4 ○21SO2→SO42-:H2O2、X2、HNO3、KMnO4、Ca(ClO)2、Na2O2○22H2SO4(浓)→SO2:Cu、C、S、P、HBr、HI、H2S○23SO32-→SO42-:Cl2、Br2、I2、O2、KMnO4、K2Cr2O7、HNO3、H2O2、Na2O2○1Na2S+CuSO4====Na2SO4+CuS↓○2H2S+CuSO4====CuS↓+H2SO4○3Na2S+H2SO4(稀)====Na2SO4+H2S↑○4H2S+2NaOH====Na2S+2H2O○5Na2S+FeSO4====FeS↓+Na2SO4○6FeS+H2SO4(稀)====FeSO4+H2S↑○72H2S+3O点燃2H2O+2SO2○8S+H2△H2S○9H2S+Cl2====2HCl+S↓2H2S+SO2====3S↓+2H2OH2S+Br2====2HBr+S↓H2S+I2====2HI+S↓5H2S+2KMnO4+3H2SO4====5S↓+K2SO4 +2MnSO4+8H2O3H2S+K2Cr2O7+4H2SO4====3S↓+K2SO4 +Cr2(SO4)3+7H2O3H2S+2HNO3(稀)====3S↓+2NO↑+2H2O H2S+H2O2====S↓+2H2OH2S+2FeCl3====S↓+2FeCl2+2HCl2H2S+O2====2S↓+2H2OH2S+H2SO4(浓)====SO2↑+S↓+2H2O2H2S+Ca(ClO)2====2S↓+CaCl2+2HCl○10S+2Cu△Cu2S○11Na2S2O3+2HCl====2NaCl+S↓+SO2↑+H2O ○12S+O SO2○133SO2+2Na2S====3S↓+2Na2SO3○14H2SO3+2H2S====3H2O+3S↓○154FeS2+11O2Fe2O3+8SO2○16SO2+2NaOH====Na2SO3+H2OH2O+2Na2CO3+SO2(少量)====Na2SO3+2NaHCO3Na2CO3+SO2(适量)====Ma2SO3+CO2○17Na2SO3(s)+H2SO4(浓)====Na2SO4+SO2↑+H2O ○18SO2+Na2O2====Na2SO4SO2+2NaClO+H2O====Na2SO4+2HCl○192SO2+O催化剂2SO3○205SO3+2P△P2O5+5SO2○21SO2+H2O2====H2SO4SO2+X2+2H2O====H2SO4+2HX(X=Cl、Br、I)2SO2+O2+2H2O====2H2SO43SO2+2HNO3(稀)+2H2O====2NO+3H2SO4 5SO2+2KMnO4+2H2O====K2SO4+2MnSO4+2H2SO4 ○222H2SO4(浓)+Cu====CuSO4+SO2↑+2H2O2P+5H2SO4(浓)△2H3PO4+5SO2↑+2H2O C+2H2SO4(浓)△CO2↑+2SO2↑+2H2OS+2H2SO4(浓)△3SO2↑+2H2O2HBr+H2SO4(浓)====Br2+SO2+2H2O2HI+H2SO4(浓)====I2+SO2+2H2O○23SO32-+Cl2+H2O====SO42-+2Cl-+2H+2H2SO3+O2====2H2SO42Na2SO3+O2====2Na2SO4○24Na2SO3+2Na2S+3H2SO4====3S↓+3Na2SO4 +3H2O○253Na2S+2FeCl3+H2O====6NaCl+3H2S↑+2Fe(OH)3↓氯(Cl)元素关系图重要关系:○12HCl→Cl2:MnO2、KMnO4、K2Cr2O7、KClO3、Ca(ClO)2 Cl2→Cl-:H2S、SO2、SO42-、Br-、I-、Fe2+○1Cl2+2FeCl2====2FeCl32Fe+3Cl2点燃2FeCl3(冒棕褐色烟)○2Cl2+Cu点燃CuCl2(冒棕黄色烟)○3Cl2+2I-====I2+2Cl-○4Cl2+2Br-====Br2+2Cl-○5Cl2+SO2+2H2O====2HCl+H2SO4○63Cl2+6KOH△KClO3+5KCl+H2O○7Cl2+2NaOH====NaCl+NaClO+H2O○8NaClO+HCl(浓)====Cl2↑+NaOHNaClO+NaCl+H2SO4====Na2SO4+Cl2↑+H2O ○9Cl2+H2O====HCl+HClO○102NaCl+2H2O电解Cl2↑+H2↑+2NaOH2NaCl+MnO2+3H2SO4△2NaHSO4+MnSO4 +Cl2↑+2H2O ○112Na+Cl点燃2NaCl (冒白烟)H2O+Cl2+Na2CO3(足量)====NaCl+NaClO+ 2NaHCO3Na2CO3+H2O+2Cl2(足量)====2NaCl+2HClO +CO2↑○124HCl(浓)+MnO2△MnCl2+2H2O+Cl2↑2KMnO4+16HCl(浓)====2KCl+2MnCl2+5Cl2↑+8H2OKCr2O7+14HCl(浓)====2KCl+2CrCl3+3Cl2↑+2H2OKClO3+6HCl(浓)====KCl+3Cl2↑+3H2O Ca(ClO)2+4HCl(浓)====CaCl2+2Cl2↑+2H2O ○13Cl2+H点燃2HClH2S+Cl2====2HCl+SH2+Cl光照2HClNa2SO3+Cl2+H2O====Na2SO4+2HCl2FeCl2+Cl2====2FeCl3○14HCl+NH3====NH4Cl (冒白烟)○15NH4Cl△NH3↑+HCl↑○16HCl+AgNO3====HNO3+AgCl↓○17HCl+NaOH====NaCl+H2OHCl+NaHCO3====NaCl+CO2↑+H2O ○182HClO光照2HCl↑+O2↑○19Ca(ClO)2+2HCl====CaCl2+2HClOCa(ClO)2+CO2+H2O====CaCO3+2HClO ○20NaOH+HClO====NaClO+H2OHClO+Na2CO3====NaClO+2NaHCO3○212Cl2+2Ca(OH)2====CaCl2+Ca(ClO)2+2H2O 5Cl2+I2+6H2O====2HIO3+10HCl○223Cl2+8NH3====N2+6NH4Cl氧(O)元素关系图○12O3====3O2O3+2KI+H2O====2KOH+I2+O2○23O放电2O3○3O3+H2S====H2O+O2+S↓○42H2O通电2H2↑+O2↑2H2O+2F2====4HF+O2○5O2+2H点燃2H2OO2+2Cu+2H2SO4====2CuSO4+2H2O O2+2H2S====2S↓+2H2O○62H2O2MnO2 2H2O+O2↑5H2O2+2KMnO4+3H2SO4====K2SO4 +2MnSO4+5O2↑+8H2O重要关系:○4H2O→O2:F2、电解○6H2O2→O2:KMnO4、MnO2○7H2O2→H2O:I-、S2-、SO42-、Fe2+ 8○72H2O2MnO22H2O+O2↑H2O2+H2S====S↓+2H2OH2O2+2KI+H2SO4====K2SO4+I2+2H2OH2O2+Na2SO3====Na2SO4+H2OH2O2+2FeSO4+H2SO4====Fe2(SO4)3+2H2O ○82H2O+Na2O2====2NaOH+H2O2BaO2+H2SO4(稀)低温H2O2+BaSO4↓○9O2+2Na点燃Na2O2○102Na2O2+2CO2====2Na2CO3+O2↑2Na2O2+2H2O====4NaOH+O2↑○11Na2O2+H2SO4(稀)====Na2SO4+H2O2 Na2O2+2H2O低温2NaOH+H2O2○12H2O2+SO2====H2SO4○13Na2O2+SO2====Na2SO4氮(N)元素关系图重要关系:○20HNO3(稀)→NO:HBr、HI、H2S、SO2、SO32-、Fe2+、Fe、Cu、Ag○26HNO3(浓)→NO2:HBr、HI、H2S、SO2、SO32-、Fe2+、S、C、P、Cu、Ag○1Mg3N2+8HCl====3MgCl2+2NH4Cl○22NH4Cl+Ca(OH)2△2NH3↑+CaCl2+2H2O NH4Cl△NH3↑+HCl↑2NH4Cl+CaO△CaCl2+2NH3↑+H2O ○3NH3+HCl====NH4Cl○4NH3·H2O+HCl====NH4Cl+H2O3NH3·H2O+FeCl3====Fe(OH)3↓+3NH4Cl○5NH4Cl+H2O====NH3·H2O+H2ONH4Cl+NaOH====NH3·H2O+NaCl○6NH3+H2O====NH3·H2O○7NH3·H2O△NH3↑+H2O○8N2+3H2高温高压催化剂2NH3○94NH3+3O2(纯)点燃2N2+6H2O2NH3+3CuO△N2+3Cu+3H2O○10Mg3N2+6H2O====2NH3↑+3Mg(OH)2○113Mg+N2点燃Mg3N2○12NaNO2+NH4Cl△N2↑+NaCl+2H2O○13N2+O放电NO○146NO+4NH3△5N2+6H2O○156NO2+8NH3△7N2+12H2O○16NO+NO2+2NaOH====2NaNO2+H2O○172NaNO2+2NaI+2H2SO4====2NO↑+I2+2H2O +2Na2SO42NaNO2+2HCl====2NaCl+NO↑+NO2↑+H2O ○182NO+O2====2NO2○193NO2+H2O====2HNO3+NONO2+2KI+H2O====I2+NO+2KOH○208HNO3(稀)+3Cu====3Cu(NO3)2+2NO↑+4H2O Fe+2HNO3(稀)====Fe(NO3)3+NO↑+4H2O 2HNO3(稀)+3H2S====3S↓+2NO↑+4H2O3Na2SO3+2HNO3(稀)====3NaSO4+2NO↑+4H2O2H2O+3SO2+2HNO3(稀)====3H2SO4+2NO6KI+8HNO3(稀)====6KNO3+3I2+2NO↑+4H2O3FeCl2+4HNO3====2FeCl3+NO↑+Fe(NO3)2 +2H2O○212HNO2====H2O+NO↑+NO2↑○225NaNO2+2KMnO4+3H2SO4====5NaNO3+K2SO4+2MnSO4+3H2O○232NaNO3△2NaNO2+O2↑○242NO2+2NaOH====NaNO3+NaNO2+H2O○253NO2+H2O====2HNO3+NO○264HNO3(浓)+Cu====Cu(NO3)2+2NO2+2H2O C+4HNO3(浓)△CO2↑+4NO2↑+2H2OS+6HNO3(浓)△H2SO4+6NO2↑+2H2OP+5HNO3(浓)△H3PO4+5NO2↑+H2O4HNO见光或受热2H2O+4NO2↑+O2↑○272Cu(NO3)2△2CuO+4NO2↑+O2↑○28HNO3+NaOH====NaNO3+H2O○29NaNO3+H2SO4(浓)微热NaHSO4+HNO3↑○302HNO3+Cu(OH)2====Cu(NO3)2+2H2O○312HNO3(浓)+Ag====AgNO3+NO2↑+H2O3Ag+4HNO3(稀)====3AgNO3+NO↑+2H2O○322AgNO3+Cu====Cu(NO3)2+2Ag磷(P)元素关系图○14P+5O 2点燃2P 2O 5 ○22P+3Cl 2点 燃2PCl 3 ○3PCl 3+Cl 2====PCl 5 ○4PCl 3+3H 2O====H 3PO 3+3HCl ○52P+3Ca △ Ca 3P 2 ○62P+3H 2 △ 2PH 3 ○7Ca 3P 2+6H 2O====3Ca(OH)2+3PH 3↑ ○8PCl 5+4H 2O====H 3PO 4+5HCl ○9P 2O 5+3H 2O====2H 3PO 4 ○10Ca(H 2PO 4)2+H 2SO 4====2H 3PO 4+CaSO 4 ○112H 3PO 4+Ca(OH)2====Ca(H 2PO 4)2+2H 2O ○12Ca(H 2PO 4)2+Ca(OH)2====2CaHPO 4+2H 2O ○132CaHPO 4+H 3PO 4====Ca(H 2PO 4)2 ○142CaHPO 4+Ca(OH)2====Ca 3(PO 4)2+2H 2O ○15Ca 3(PO 4)2+H 3PO 4====3CaHPO 4 ○16Ca 3(PO 4)2+3H 2SO 4====3CaSO 4+2H 3PO 4 ○172H 3PO 4+3Ca(OH)2====Ca 3(PO 4)2+3H 2O碳(C)元素、硅(Si)元素关系图○15○1C+2H高温CH4○2CH4高温C+2H2○3CH4+2O点燃CO2+2H2O ○42C+O点燃2COC+CO高温2CO2C+SiO高温Si+2CO↑3C+CaO℃CaC2+CO↑C+H2O高温H2↑+CO↑C+ZnO高温Zn+CO↑○5C+O点燃CO2C+2CuO△2Cu+CO2↑○6CO2+2Mg点燃2MgO+C○72C+SiO2高温Si+2CO↑○82CO+O点燃2CO2CO+CuO△Cu+CO2CO+H2O催化剂、△CO2+H22CO+Fe2O高温2Fe+3CO2○9CO2+C高温2CO○10CO2+Ca(OH)2====CaCO3↓+H2O○11CaCO煅烧CaO+CO2↑CaCO3+2HCl====CaCl2+CO2↑+H2O○12CO2+2NaOH====Na2CO3+H2O○13Na2CO3+2H+====2Na++CO2↑○14Na2CO3+Ca(OH)2====CaCO3↓+2NaOH ○15CaCO3+CO2+H2O====Ca(HCO3)2○16Ca(HCO3)2△CaCO3↓+CO2↑+H2OCa(HCO3)2+Ca(OH)2====2CaCO3↓+2H2O ○17Ca(HCO3)2+2NaOH====CaCO3↓+Na2CO3 +2H2O○18Na2CO3+H2O+CO2====2NaHCO3Na2CO3+HCl====NaHCO3+NaCl○192NaHCO3△Na2CO3+H2O+CO2↑○20Na2CO3+SiO高温Na2SiO3+CO2↑○21Si+2NaOH+H2O====Na2SiO3+2H2↑○22Si+O2△SiO2○23SiO2+2C高温Si+2CO↑○24Si+2F2====SiF4Si+4HF====SiF4+2H2↑○25SiO2+2NaOH====Na2SiO3+H2O○26H2SiO3△H2O+SiO2○27Na2SiO3+6HF====2NaF+SiF4+3H2O○28Na2SiO3+2HCl+H2O====2NaCl+H4SiO4↓○29H4SiO4====H2SiO3+H2O○30SiO2+4HF====SiF4↑+2H2O钠(Na)元素关系图○12Na+S△Na2S○22Na+O2点燃Na2O2 ○32Na+2H2O====2NaOH+H2↑○44Na+O2====2Na2O○52Na+H高温2NaH○62NaCl(熔融)电解2Na+Cl 2↑ ○72Na+Cl 点 燃2NaCl ○8+H 2O+H 2↑ ○9NaH+H 2O====NaOH+H 2↑ ○10Na 2O+H 2O====2NaOH ○112Na 2O+O 2 △ 2Na 2O 2 ○122Na 2O 2+2H 2O====4NaOH+O 2↑ ○132Na 2O 2+2CO 2====2Na 2CO 3+O 2↑ ○142NaOH+CO 2====Na 2CO 3+H 2O ○15Na 2CO 3+Ca(OH)2====2NaOH+CaCO 3↓ ○16Na 2CO 3+2HCl====2NaCl+H 2O+CO 2↑ ○17NaOH+CO 2====NaHCO 3 ○182NaCl+2H 2O 电 解2NaOH+H 2↑+Cl 2↑ ○19NaOH+HCl====NaCl+H 2O ○20NaCl+NH 3+CO 2=H 2O====NH 4Cl+NaHCO 3 ○21NaHCO 3+HCl====NaCl+H 2O+CO 2↑ ○22NaHCO 3+NaOH====Na 2CO 3+H 2O ○23Na 2CO 3+CO 2+H 2O====2NaHCO 3铝(Al )元素关系图重要关系:○6Al 3+→Al(OH)3:OH -、NH 3·H 2O 、CO 32-、HCO 3-、S 2-、HS -、ClO -、AlO 2- ○11 AlO 2- →Al(OH)3:H +、CO 2、Al 3+、Fe 3+、HCO 3-、NH 4+、HSO 3-、H 2PO 4-、Cl 2、NO 2○12Al2O3(熔融)电解、冰晶石4Al+3O2↑○24Al+3O2====2Al2O32Al+Fe2O3高温2Fe+2Al2O34Al+3MnO高温3Mn+2Al2O32Al+WO高温W+Al2O3○32Al+6H+====2Al3++3H2↑2Al+3Hg2+====2Al3++3Hg○4Al2O3+6H+====2Al3++3H2O○5Al(OH)3+3H+====Al3++3H2O○6Al3++3OH-====Al(OH)3↓Al3++3NH3·H2O====Al(OH)3↓+3NH4+2Al3++3CO32-+3H2O====2Al(OH)3↓+3CO2↑Al3++3HCO3-====Al(OH)3↓+3CO2↑2Al3++3S2-+6H2O====2Al(OH)3↓+3H2S↑Al3++3HS-3H2O====Al(OH)3↓+3H2S↑Al3++3ClO-+3H2O====Al(OH)3↓+3HClO Al3++3AlO2-+6H2O====4Al(OH)3↓○7AlO2-+4H+====Al3++2H2O ○8Al3++4OH-====AlO2-+2H2O○92Al+2OH-+2H2O====2AlO2-+3H2↑○10Al(OH)3+OH-====AlO2-+2H2O○11AlO2-+H++H2O====Al(OH)3↓2AlO2-+CO2(少量)+3H2O====2Al(OH)3↓+CO32-AlO2-+CO2(足量)+2H2O====Al(OH)3↓+HCO3-3AlO2-+Fe3++6H2O====3Al(OH)3↓+Fe(OH)3↓AlO2-+HCO3-+H2O====Al(OH)3↓+CO32-AlO2-+NH4++2H2O====Al(OH)3↓+NH3·H2O AlO2-+HSO3-+H2O====Al(OH)3↓+SO32-2AlO2-+Cl2+3H2O====2Al(OH)3↓+Cl-+ClO- 2AlO2-\+3NO2+3H2O====2Al(OH)3↓+NO+2NO3-AlO2-H2PO4-+H2O====Al(OH)3↓+HPO42-○122Al(OH)3△Al2O3+3H2O○13Al2O3+2OH-====2AlO2-+H2O铁(Fe)元素关系图重要关系:○2Fe→Fe2+:Fe3+、Cu2+、H+、I2○3Fe2+→Fe3+:Cl2、Br2、O2、H2O2、HNO3、MnO4-○4Fe3+→Fe2+:Zn、Fe、Cu、I-、H2S、SO2○6Fe→Fe3+:Cl2、Br2、HNO3、H2SO4(浓)△○13Fe3+→Fe(OH)3:OH-、S2-、HS-、CO32-、HCO3-、AlO2-、ClO-○1Fe2++Zn====Fe+Zn2+○2Fe+Cu2+====Cu+Fe2+Fe+2Fe3+====3Fe2+Fe+2H+====Fe2++H2Fe+I2====Fe2++2I-○32Fe2++Cl2====2Fe3++2Cl-2Fe2++Br2====2Fe3++2Br-4Fe2++O2+4H+====4Fe3++2H2O 2Fe2++H2O2+2H+====2Fe3++2H2O5Fe2++MnO4-+8H+====5Fe3++Mn2++4H2O 3Fe2++NO3-+4H+====3Fe3++NO↑+2H2O ○42Fe3++Zn====2Fe2++Zn2+2Fe3++Cu====2Fe2++Cu2+2Fe3++2I-====2Fe2++I22Fe3++H2S====2Fe2++S↓+2H+2Fe3++SO2+2H2O====SO42-+2Fe2++4H+○52Fe3++3Zn====2Fe+3Zn2+○6Fe+NO3-+4H+====Fe3++NO↑+2H2OFe+6H2SO4(浓)△Fe2(SO4)3+3SO2↑+6H2O ○7FeO+2H+====Fe2++H2O○8Fe(OH)2+2H+====Fe2++2H2O○9Fe2++2OH-====Fe(OH)2↓○10Fe3O4+8H+====Fe2++2Fe3++4H2OFe3O4+8HI====3FeI2+I2+4H2O○114Fe(OH)2+O2+2H2O====4Fe(OH)3○123Fe3O4+28HNO3====9Fe(NO3)3+NO↑+14H2O ○13Fe3++3NH3·H2O====Fe(OH)3↓+3NH4+○14Fe(OH)3+3H+====Fe3++3H2O○15Fe2O3+6H+====2Fe3++3H2O○16Fe3++3SCN-====Fe(SCN)3○17Fe(OH)隔绝空气、△FeO+H2O○182Fe(OH)3△FeO+H2O○19Fe2O3+3CO高温2Fe+3CO23Fe3O4+8Al高温9Fe+4Al2O32FeO+Si高温2Fe+SiO2○206FeO+O2△2Fe3O4○213Fe+2O点燃Fe3O43Fe+4H2O(g)高温Fe3O4+4H2○222Fe(过量)+O高温2FeO (炼钢炉中的反应)○23Fe+S△FeS○24FeS2△FeS+S○254FeS2+11O2高温2Fe2O3+8SO2○262Fe2++5ClO-+5H2O====2Fe(OH)3↓+4HClO+Cl-6Fe2++3ClO-+3H2O====2Fe(OH)3↓+4Fe3++3Cl-4Fe2++4Na2O2+6H2O====4Fe(OH)3↓+8Na++O26Fe2++3Na2O2+6H2O====4Fe(OH)3↓+2Fe3++6Na+铜(Cu)元素关系图重要关系:○4CuO→Cu:H2、CO、NH3、C、CH3CH2OH○7Cu→Cu2+:O2、HNO3、H2SO4(浓)、H2O2、Fe3+ ○16Cu(OH)2→Cu2O:CH3CHO、HCHO、H—COOH○1Cu2(OH)2CO3+4H+====2Cu2++CO2↑+3H2O ○22Cu+S△Cu2S ○32Cu+O2+CO2+H2O====Cu2(OH)2CO3○4CuO+H2△Cu+H2O3CuO+2NH3△N2+3Cu+3H2OCuO+CO△Cu+CO2CuO+CH3CH2OH−→−∆Cu+CH3CHO+H2O ○52Cu+O2△2CuO4Cu+2NO2△4CuO+N2○6Cu2++Zn====Zn2++Cu○72Cu+O2+2H2SO4(稀)△2CuSO4+2H2O3Cu+8HNO3(稀)====3Cu(NO3)2+2NO↑+4H2O Cu+2H2SO4△CuSO4+SO2↑+2H2OCu+H2O2+H2SO4(稀)====CuSO4+2H2O2FeCl3+Cu====CuCl2+2FeCl2○8Cu2(OH)2CO3△2CuO+H2O+CO2↑○94CuO高温2Cu2O+O2↑○10Cu(OH)2△CuO+H2O ○11CuO+2H+====Cu2++H2O○12Cu2+H2S====CuS↓+2H+○133CuS+8HNO3(稀)====3Cu(NO3)2+3S↓+2NO↑+4H2O○14Cu(OH)2+2H+====Cu2++2H2O○15Cu2++2OH-====Cu(OH)2↓○162Cu(OH)2+R—CHO+NaOH−→−∆R—COONa +Cu2O↓+3H2O2Cu(OH)2+H—COOH+2NaOH−→−∆Na2CO3 +Cu2O↓+4H2O4Cu(OH)2+H—CHO+2NaOH−→−∆Na2CO3 +2Cu2O↓+6H2O○17Cu(OH)2+4NH3====[Cu(NH3)4](OH)2○18Cu2O+2H+====Cu+Cu2++H2O高中化学17≡≡种常见气体的实验室制法Cl2:4HCl+MnO2△Cl2+MnCl2+2H2OHCl:2NaCl+H2SO4△Na2SO4+2HClHBr:NaBr+H3PO4△NaH2PO4+HBrHI:KI+H3PO4△KH2PO4+HIO2:2KMnO4△K2MnO4+MnO2+O2SO2:Na2SO3+H2SO4====Na2SO4+H2O+SO2H2S:FeS+H2SO4====FeSO4+H2SNH3:2NH4Cl+Ca(OH)2△2NH3+CaCl2+2H2O N2:NH4NO2△N2+2H2ONO:3Cu+8HNO3====3Cu(NO3)2+2NO+4H2O NO2:Cu+4HNO3====Cu(NO3)2+2NO2+2H2O CO2:CaCO3+2HCl====CaCl2+CO2+H2O CO:HCOOH△、浓硫酸CO+H2OCH4:CH2COONa+NaOH△、碱石灰Na2CO3+CH4 CH2=CH2:C2H5OH浓硫酸、170℃CH2=CH2+H2O CH≡CH:CaC2+2H2O−→−Ca(OH)2+CH≡CH H2:Zn+H2SO4====ZnSO4+H2。

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