Write the schemes of the stepwise dissociation of the following substances: a) H3PO4 ↔ b) MgOHCl ↔

univerkov | April 2, 2021 | education

Write the schemes of the stepwise dissociation of the following substances: a) H3PO4 ↔ b) MgOHCl ↔ c) Ca (OH) 2 ↔ d) NaHCO3 ↔

a) H3PO4 → H (+) + H2PO4 (-); H2PO4 (-) ↔H (+) + HPO4 (2 -); HPO4 (2-) ↔H (+) + PO4 (3-)
b) MgOHCl → MgOH (+) + Сl (-) MgOH (+) ↔Mg (2 +) + OH (-)
c) Ca (OH) 2↔CaOH (+) + OH (-) CaOH (+) ↔Ca (2 +) + OH (-)
d) NaHCO3 → Na (+) + HCO3 (-) HCO3 (-) ↔H (+) + CO3 (2-)

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