Question

将H2S,HCL,CH4,Ar,NH3,H20,MgO,SiO2,CO2,NaCL,NaOH,NaHCO3等要求填空

Answer 1

只存在共价键-H2S,HCL,CH4,NH3,H20,CO2,SiO2-只存在离子键-MgO,NaCL-既存在共价键有存在-离子键-NaOH,NaHCO3-

属于离子化合物-MgO,NaCL,NaOH,NaHCO3-含有共价键的分子-H2S,HCL,CH4,NH3,H20,CO2,SiO2,NaOH,NaHCO3--属于共价化合物H2S,HCL,CH4,NH3,H20,CO2,SiO2