University:
Campbell University
Course:
CHEM 111 | General Chemistry I
Academic year:

2024
Views:

188

Pages:

3
Author:

calidancer42q7j

KEY Review - Naming, Formula and Reactions Name - _________________ 1.) What type of bond would be expected to form between the atoms of each of the following? a.) H ad O PC c.) Ni and Cl PC e.) Ca and Br I b.) K and I I d.) P and O f.) N and F PC g.) I and F PC PC 2.) Which of the following would be expected to form a stronger bond? a.) Na+Cl- or K+Br- NaCl c.) K+F- or Ca2+O2- CaO e.) C-C or Si-Si C-C b.) C-O or Si-S d.) Cs+I- or Mg2+O2- f.) B-F or N N N N C-O MgO 3.) Which is expected to be larger? a.) Na+ or Na- c.) As or As3- e.) Se- or S g.) Ca2+ or Se2- b.) I or I+ d.) Na+ or Cs+ f.) S2- or S h.) O2- or S2- i.) K+ or Cl- 4.) Draw the Lewis diagrams for the following. a.) HBr b.) SBr2 c.) CO2 d.) MgO e.) [CNO]- f.) [NO]+ 5.) Write the formula for the following. a.) sodium nitride __________Na3N________ e.) tin (IV) sulphide heptahydrate SnS2•7H2O b.) hydrobromic acid ________HBr_________ f.) barium hydroxide ________Ba(OH)2______ c.) iron (III) oxide _________Fe2O3________ g.) ammonium phosphate ____(NH4)3PO4_____ d.) carbon tetrachloride ________CCl4______ h.) diphosphorus tetraoxide _____P2O4_____ 1 i.) nitric acid KEY _________HNO3_______ 6.) Write the names of the following. a.) H3PO4 ________phosphoric acid________ b.) N2O4 ______dinitrogen tetraoxide______ c.) FePO4 ______iron (III) phosphate_______ d.) Na2SO4 _______sodium sulphate_________ e.) NH4CH3COO•5H2O _ammonium acetate pentahydrate_ f.) HF ________hydrofluoric acid_______ g.) CaO ________calcium oxide_________ h.) OF2 _______oxygen difluoride_______ i.) Fe2(CO3)3 _______iron (III) carbonate_____ 7.) State the law of conservation of mass? Answer – mass of reactants must equal the mass of the products. 8.) For each of the following word equations, write a chemical equation, balance it, include the phases of the reactants and products and name the reaction type. a.) Oxygen gas and nitrogen gas react to produce nitrogen dioxide gas. ___Synthesis___ 2 O2 (g) + N2 (g) 2 NO2  (g) b.) Aqueous beryllium iodide and aqueous tin (IV) nitrate produce beryllium nitrate and tin (IV) iodide. __No Reaction__ 2 BeI2 (aq) + Sn(NO3)4 (aq)  2 Be(NO3)2 (aq) + SnI4 (aq) c.) Hydrochloric acid and aqueous magnesium hydroxide produce magnesium chloride and water. __Neutralization__ 2 HCl (aq) + Mg(OH)2 (aq)  MgCl2 (aq) + 2 H2O (l) d.) Aqueous hydrogen carbonate produces water and carbon dioxide. 2 __Decomposition__ H2CO3 H2O (l) + CO2  (aq) KEY (g) e.) Sodium and aqueous nickel (II) chloride produce sodium chloride and nickel. __Single Replacement__ 2 Na (s) + NiCl2 (aq) 2 NaCl (aq) + Ni  (s) f.) Ethyne gas (C2H2) and oxygen burn to produce carbon dioxide and water. __Combustion__ 2 C2H2 (g) + 5 O2 (g)  4 CO2 (g) + 2 H2O (g) 9.) Classify the following as endothermic or exothermic. a.) C + O2 b.) N2O4 + energy c.) CaCl2 + O2  CaO + Cl2 ∆ d.) SO2 + CO2  SO3 + CO ∆ CO + energy   _______Exothermic_______ N2 + O2 _______Endothermic_______ 783 387 _______Exothermic_______ _______Endothermic_______ 10.) Draw an energy diagram for the reaction shown in 9 . Energy  CaCl2 + O2 Give off Energy CaO + Cl2 Reaction Proceeds  11.) Draw and energy diagram for the reaction shown in 9 . Energy  SO3 + CO Add SO2 + CO2 Energy Reaction Proceeds  3