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All the reactions in Part B were examples of precipitation reactions in which ca

ID: 628710 • Letter: A

Question

All the reactions in Part B were examples of precipitation reactions in which cation and anion pairs are exchanged (general form: AB + CD ---------> AD + CB). For each reaction, write the complete and balanced molecular equation including phase labels. Refer to general solubility rules for identifying the precipitates

Explanation / Answer

Fecl3 + 3 NaOH ------> 3NaCl + Fe(OH)3 Na3PO4 + 3AgNO3 ----->3 NaNO3 + Ag3PO4 CuSO4 + 2NaOH ----> Cu(OH)2 + Na2SO4 3Co(NO3)2 + 2Na3PO4 ---> 6NaNO3 + Co3(PO4)2 KBr + AgNO3 -----> AgBr + KNO3 3NaOH + Co(NO)3 ---> Co(OH)3 + 3NaNO3 Pb(NO)3 + 3NaI ----> PbI3 + 3NaNO3 Na2CO3 + Pb(NO)2 ----> 2NaNO3 + Pb(CO3) 2NaOH + Ni(NO3)2 ---->2 NaNO3 + Ni(OH)2