A.AlCl3 | B.NaHCO3 | C.MgSO4 | D.KMnO4 |
A.[Na+]>[HCO3-]>[H+]>[OH-] |
B.[Na+]+[H+]=[OH-]+[HCO3-]+2[CO32-] |
C.[Na+]=[HCO3-]>[OH-]>[H+] |
D.[Na+]=[HCO3-]+[CO32-] +[H2CO3] |
A.KCl | B.Mg(OH)2 | C.Na2CO3 | D.MgSO4 |
A.[Na+]>[S2-]>[H+]>[HS-]>[OH-] |
B.1/2[Na+]=[S2-]+[HS-]+[H2S] |
C.[Na+]+[H+]=1/2[S2-]+[HS-]+[OH-] |
D.[S2-]+[HS-] +[H2S] =0.05mol/L |
A.NaHCO3 | B.NH4Cl | C.Na2SO4 | D.NaHSO4 |
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