Which of the listed salts will undergo hydrolysis: KBr, Na2S, KNO3, Cu (NO3) 2
| March 1, 2021 | education
We need to find out which of the listed salts will undergo hydrolysis: KBr, Na2S, KNO3, Cu (NO3) 2.
These are two salts Na2S and Cu (NO3) 2. Let’s write the reaction equations in full and ionic form.
Na2S + H2O = NaHS + NaOH.
Complete ionic reaction equation:
2Na + + S2- + H2O = Na + + HS- + Na + + OH-.
Abbreviated ionic equation:
S2- + H2O = HS- + OH-.
Likewise for the second salt:
Cu (NO3) 2 + H2O = (CuOH) NO3 + HNO3.
Cu2 + + 2NO3- + H2O = CuOH + + NO3- + H + + NO3-.
Abbreviated ionic:
Cu2 + + H2O = CuOH + + H +.
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