1 (33)

Prévia do material em texto

2 Atoms, Molecules, and Ions Solutions to Exercises 2.53 (a) GaF₃, gallium(III) fluoride (b) LiH, lithium hydride (c) aluminum iodide (d) K₂S, potassium sulfide 2.54 (a) ScI₃ (b) Sc₂S₃ (c) ScN 2.55 (a) CaBr₂ (b) (c) (d) (NH₄)₂SO₄ (e) Mg₃(PO₄)₂ 2.56 (a) CrBr₃ (b) Fe₂O₃ (c) (d) (e) (NH₄)₃PO₄ 2.57 Ion K+ Mg²⁺ Fe³⁺ MgCl₂ FeCl₃ OH⁻ KOH NH4OH* Mg(OH)₂ Fe(OH)₃ K2CO₃ (NH₄)₂CO₃ MgCO₃ Fe₂(CO₃)₃ K₃PO₄ (NH₄)₃PO₄ Mg₃(PO₄)₂ *Equivalent to NH₃(aq). 2.58 Ion Na+ Ca²⁺ Na₂O CaO FeO Ca(NO₃)₂ Fe(NO₃)₂ Na₂SO₄ CaSO₄ Ca₃(AsO₄)₂ Fe₃(AsO₄)₂ AlAsO4 2.59 Molecular (all elements are nonmetals): (a) B₂H₆ (b) (f) NOCI (g) NF₃ Ionic (formed by a cation and an anion, usually contains a metal cation): (c) LiNO₃ (d) (e) CsBr (h) 2.60 Molecular (all elements are nonmetals): (a) PF₅ (c) (h) Ionic (formed from ions, usually contains a metal cation): (b) Nal (d) Ca(NO₃)₂ (e) FeCl₃ (f) LaP (g) CoCO₃ Naming Inorganic Compounds; Organic Molecules (sections 2.8-2.9) 2.61 (a) (b) Cl⁻ (c) (d) (e) 2.62 (a) selenate (b) selenide (c) hydrogen selenide (biselenide) (d) hydrogen selenite (biselenite) 2.63 (a) calcium, 2+; oxide, 2- (b) sodium, 1+; sulfate, 2- 27