P 1s22s22p63s23p3 Ar 1s22s22p63s23p6 Ca 1s22s22p63s23p64s2 Ga 1s22s22p63s23p64s23d104p1 Rb 1s22s22p63s23p64s23d104p65s1 I
POLYATOMIC IONS Hydroxide OH-1 Sulfate SO4-2 Phosphate PO4-3 Carbonate CO3-2 Bicarbonate HCO3-1 Nitrate NO3-1 Acetate C2H3O2-1 Cyanide CN-1 Ammonium NH4+1 Iodate IO3-1 NAME the following compounds: Compound Name of positive ion Name of negative ion Change ending? Name of Compound BaCO3 NaOH Na2SO4 H2S Ag2CO3 K3PO4 Na2CO3 MgCl2 CaO 2
Molecule Individual Dot Diagrams Total Number of Valence Electrons Determine central atom Final structure NF41+ IO1- PCl41+ CH4 PRACTICE PROBLEMS: DOUBLE/TRIPLE BONDS Draw Lewis Structures for the following molecules. Molecule Individual Dot Diagrams number of Valence Electrons Determine central atom Final structure
Chapter Eight: Chemical Equations & Reactions SECTION 1: DESCRIBING CHEMICAL REACTIONS (pg. 260 – 266) REVIEW: WRITING FORMULAS FOR COMPOUNDS formulas for the following compounds (refer to Chapters 5 & 6 if you have problems): IONIC COMPOUNDS sodium chloride magnesium fluoride rubidium calcium carbonate ammonium phosphide ammonium phosphate magnesium nitrate COVALENT COMPOUND trisulfur dioxide carbon monoxide carbon tetrachloride boron triiodide dinitrogen pentabromide IONIC AND COVALENT carbon dioxide iron (III) chloride phosphorus trichloride sodium oxide magnesium hydroxide diphosphorus pentoxide calcium chloride water barium sulfate potassium oxide sodium fluoride sodium carbonate sulfur trioxide lithium bromide magnesium oxide ammonium chloride
PRACTICE PROBLEMS: WRITING WORD EQUATIONS For each of the following problems complete the following Write the word equation Convert the word equation into chemical formulas Identify the type of reaction Balance the reaction When dissolved beryllium chloride reacts with dissolved silver nitrate in water, beryllium nitrate and silver chloride powder are made. A. B. C. D. When isopropanol burns in oxygen, carbon dioxide and water are produced. A. B. C. D. When dissolved sodium hydroxide reacts with sulfuric acid sodium sulfate and water are formed. A. B. C. D.
Mole ratio of lithium carbonate to sodium carbonate. Aluminum Aluminum and Oxygen 2 Al2O3 4 Al + 3 O2 Mole ratio from aluminum oxide to aluminum. Mole ratio from moles of oxygen to moles of aluminum oxide. Stoichiometry Questions For each problem listed, write a balanced equation and then answer the questions that follow. Lead (IV) Sulfate + Lithium Chloride Lithium Sulfate + Lead (IV) Chloride _____Pb2(SO4)4 + __8__ LiCl __4__ Li2SO4 + _2__PbCl4 What is the mole ratio for lead sulfate to lithium chloride? If I have two moles of lead sulfate, how many moles of lithium chloride will I need to react? Use the equation from question #1 to answer these questions: How many moles of lead sulfate are needed to react with 2 moles of lithium chloride? How many of lead chloride will be produced if I have 1 mole of lead sulfate to react? Use factor label or a proportion to determine how many moles of lithium sulfate will form if I have 0.67 moles of lithium chloride. How many moles of lead chloride will be produced if I have 0.55 moles of lead sulfate to start with? Aluminum + hydrogen sulfate Aluminum sulfate + hydrogen gas ____Al + ____ H2SO4 ____ Al2(SO4)3 + ____ H2