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Chemistry 2. Study Guide 6. Goal 6. 1. Groups, Families 2. Periods, Row 3. Group, Family also same oxidation # 4. Period 5a. Group 1, 1A +1 5b. Group2, 2A, +2 5c Group 3-12 5d. Group 17, 7a, -1 5e. Group 18, 8a, stable. Goal 6. 6a. Left of stair step line
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Chemistry 2 Study Guide 6
Goal 6 • 1. Groups, Families • 2. Periods, Row • 3. Group, Family also same oxidation # • 4. Period • 5a. Group 1, 1A +1 • 5b. Group2, 2A, +2 • 5c Group 3-12 • 5d. Group 17, 7a, -1 • 5e. Group 18, 8a, stable
Goal 6 • 6a. Left of stair step line • 6b. Right of stair step line • 6c. Along the stair step line (semiconductors) • 7a. Solid@ room temp., High melting and boiling points, ductile (pulled into wire), malleable (shaped or flattened into sheets), Good conductors of heat and electricity, shiny luster • 7b. Gases or Brittle solids @room temp., Low melting and boiling points, poor conductors, good insulators, dull luster.
Goal 6 • 8. gain • 9. lose • 10. transferred (donated or received) • 11. shared • 12
Goal 6 • 13a. Covalent, Carbon Dioxide • 13b. Covalent, Dinitrogentetraoxide • 13c. Covalent, Sulfur trioxide • 13d. Ionic, Transition, Manganese (II) sulfide • 13e. Ionic, Potassium oxide • 13f. Ionic, Polyatomic ion, Aluminum Phosphate • 13g. Ionic, Polyatomic ion, Sodium carbonate • 13h. Ionic, Polyatomic ion, ammonium chloride
Goal 6 • 14. Covalent, AsBr5 • 14b. Covalent, OF2 • 14c. Covalent, P2O5 • 14d. Ionic, BaF2 • 14e. Ionic, LiBr • 14f. Ionic, Polyatomic, Ca(NO3)2 • 14g. Ionic, Transition, CrCl3 • 14h. Ionic, Polyatomic, Na3PO4
Goal 6 • 15. Reactants • 16. Products • When balancing change coefficients not subscripts. • 17a.2N2+O2 forms 2N2O • 17b. 2Ki+Cl2 forms 2KCl+I2 • 17c. 2S+ 3O2 forms 2SO3 • 17d. 3Mg (NO3)2 +2 K2PO4 forms Mg3(PO4)2+6KNO3 • 18. Law of conservation of matter
Goal 6 • 19a synthesis • 19b combustion • 19c. Single replacement • 19d. Decomposition • 19e. Double replacement • 19f. NaOH +HCl forms NaCl + H2O double neutralization • 20a develop gas • B. Form precipitate • C. Release/absorb energy or light • D. Color change (rust, burn)
Goal 6. • 21. Exothermic • 22. Endothermic • 23a. Solute • 23b. Solvent (water is universal solvent because it is a polar molecule) • 24. Like dissolves Like • 25 of a solid, a. Stirring (agitation) • B. Increase surface area • C. Increase temperature
Goal 6 • 26. Ionic(salt), Covalent(sugar) • 27. See diagram • 28. Saturated • 29. Unsaturated • 30. Supersaturated • 31 Neutralization Reaction • 32a. Sour, form electrolytes, corrosive pH<7, produce H+ ions, change indicator to red
Goal 6 • 32b. Bitter, electrolytes, corrosive pH>7, Produce OH- ions, slippery, change indicator color to blue • 33a. Blue • 33b. Red • 33c colorless to pink • 34 Alpha Particle 24He • 34b. Beta Particle 10e • 34 c. Gamma Particle
Goal 6 • 35. Fusion , require to high temp. • 36. Fission, Nuclear waste and chain reactions problems but burns clean