Question

3. Circle any of the following compounds that are insoluble in water. Refer to the general solubility rules in Appendix VIII. (a) AgCI (b) Fe(OH), o m (c) Pb(NO) (d) Znco, (e) MgSo. (1) Ni,(PO.) b ) (g) (NH4) CrO, (h) Cus (i) Ca(C,H,O2)2 6) Hgo bolo 4. Complete and balance the following single replacement reactions. If there is no reaction, write NR. Refer to the Electromotive Series in Appendix IX. (a) Hg() + Fe(NO3(aq) opo ma bonded o nouo browold OS So m ogo) (b) Zno) + Ni(C, H,02)2(aq) Obmond Doobimod og s tom) (c) A1, + HC104) (d) Cu + H2SO4(29)

Answer 1

3. (a) Aga → insoluble] [chorides of Agt are ensoluble] (6) Fe (H) → Censoluble hyckonides are ensoluble except those of Ca2+ Sytt Bat nat, kt, what ] (2) Pb(NO3)₂ → soluble (All nitrates are soluble] (2) ZnCO₂ ensoluble] [Carbonates are ensoluble except those of - Mtat, Lit, wat kt] (e) MgSO4 → soluble [ sulfates are soluble except those of Sr2t, Agt, Batt (1) Niz (PO4)2 insoluble] [Phosphates are insoluble except those of uit, Nat, Kt, Mhat I (8) (MHA) Coron - soluble las all ammonium salts are soluble. anner

(4) Cus insoluble ( All sulfides are ensoluble except those of Ca 27 Sht Bazt, lit, nat, Kt, Mat] (2) Ca (C2H30z) → soluble {all acetates are soluble] (j) Hgo [ensoluble] - [oxides are ensoluble encept those of Lit, Nat, Kt, Bazt, S, 2+1 4. (a) Hg (L) + Fe(NO3), ag) -> NO reaction ] (Hg cannot replace fe from toon aqueous] solutions of ison salts (b) Zn (5) + NiCG H, 02), (q) — 71(6_ ,09), (q) + Nice (d) Cu (s) + H₂SO4 (ag? - No reaction / Copper cannot displace hychogen from H₂SO47 as Copper is less active than Hydrogen) (e) 2A1 5) + 6HCI (Y) —>2A|C13 (5) + 341_69) anner