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Determine if Cr(NO3)3 is acidic, basic, or neutral in aqueous solution. Show the chemical reactions that take place in solution.
This is an ionic salt that undergoes cation hydrolysis:
Cr(NO3)3(aq) Cr3+(aq) + 3 NO3(aq)
Cr3+(aq) + 2 H2O(l)CrOH2+(aq) + H3O+(aq)
NO3(aq) + H2O(l) NR
Since hydronium ion is generated, the salt is acidic in aqueous solution.