Question

在强酸强碱溶液中弱酸酸根不能大量共存如HCO3-,HSO3-,HS-,H2PO4-反应的离子方程式及化学方程式

Answer 1

HCO3- + H+ ====H2O + CO2(气体)
HCO3 + OH- ====H2O + CO32-

HSO3- + H+ ====H2O+ SO2(气体)
HSO3 + OH- ====H2O + SO32-

HS- + H+ ====H2S
HS- + OH- ====H2O + OH-

H2PO4- + H+ ====H3PO4
H2PO4- + 2OH- ===2H2O + PO43-

化学方程式的话，代入阳离子即可，如：NaHCO3 + HCl ====NaCl + H2O + CO2(气体)

回答满意请采纳~