Question

化学式HCl是气体吗

Answer 1

HCl是氯化氢的化学式，常温常压是气体

Answer 2

1.CaCO3+2HCl=CaCl2+H2O+CO2(气体)2.NaHCO3+HCl=NaCl+H2O+CO2(气体)3.Fe2O3+6H+=2Fe3++3H2O4.2NaOH+CO2=Na2CO3+H2O,2NaOH+SO2=Na2SO3+H2O5.Ca(OH)2+CO2=CaCO3(沉淀)+H2O6.Zn+2HCl=ZnCl2+H2(气体)7.SiO2+2NaOH=Na2SiO3+H2O8.Na2CO3+Ca(OH)2=2NaOH+CaCO3(沉淀)9.Fe2O3+6HCl=2FeCl3+3H2O,Fe+2HCl=FeCl2+H2(气体)10.Na2CO3+2HCl=2NaCl+H2O+CO2(气体)11.Mg(OH)2+2HCl=MgCl2+2H2O,CaCO3+2HCl=CaCl2+H2O+CO2(气体)12.Na2CO3+H2SO4=Na2SO4+H2O+CO2(气体)13.KOH+HNO3=KNO3+H2O14.AgNO3+NaCl=AgCl(沉淀)+NaNO315.Mg+2HCl=MgCl2+H2(气体)16.Ba(OH)2+CO2=BaCO3(沉淀)+H2O17.Cu(OH)2+2HNO3=Cu(NO3)2+2H2O18.FeCl3+3NaOH=Fe(OH)3(沉淀)+3NaCl19.BaCl2+H2SO4=BaSO4(沉淀)+2HCl20.Ca(OH)2+H2SO4=CaSO4+2H2O21.CuSO4+Ca(OH)2=CaSO4+Cu(OH)2(沉淀)22.2Al+3H2SO4=Al2(SO4)3+3H2(气体)23.Al2O3+3H2SO4=Al2(SO4)3+3H2O24.2KOH+SO3=K2SO4+H2O25.BaCO3+2HNO3=Ba(NO3)2+H2O+CO2(气体)26.Ba(NO3)2+H2SO4=BaSO4(沉淀)+2HNO3