Teaching-Learning Program: Chemistry 2A/BCHE WEEK UNIT CONTENT CHEMISTRY 2A/2B TEXT OTHER 2013 STAWA Resources Expts/probs SEMESTER ONE: 2A Atomic structure and bonding 1-2 Atomic structure and Periodic Table compare the relative charge and relative masses of protons, neutrons and electrons identify elements using their atomic number (Z) explain isotopes using their atomic number (Z) and mass number (A) use the energy level or shell model of electron structure to write the electron configurations for the first twenty elements (Na 2, 8, 1) explain the relationship between position on the Periodic Table and number of valence electrons of elements in groups 1, 2 and 13–18 explain the relationship between the number of valence electrons and chemical properties of elements in groups 1, 2 and 13–18 explain the formation of positive and negative ions for elements in groups 1, 2 and 13–18. Other References ESSChem (lucarelli) Exploring Chemistry Stage 2 Chemistry for WA 1 (Pearson/ Heinemann) E = Experiment I = Investigation Set = Problems Chapter 1 Set 1 SET 2 1.1 - 1.4 Set 4 TASK 1 H/O 1.5, 1.6 Assign 1 Atomic Structure Review Formula etc Set 5 1.7 (Extension) E7 Chapter 2 2.1 - 2.5 3-6 Bonding describe and explain the formation and characteristics of metallic bonds and metallic substances write and interpret formulae of metallic elements describe and explain the relationships between properties and structures of metallic substances 2.6 - 2.7 (extension) Chapter 3 3.1-3.8 H/O ESSAY (Task 1) describe and explain the formation and characteristics of ionic bonds and ionic substances write and interpret formulae of ionic compounds (from the Appendix 1) describe and explain the relationships between properties and structures of ionic substances draw representations of ionic substances using electron dot (octet only) or Lewis SET 8 Set 6 Chapter 4 4.1 - 4.6 4.7 Set 7 SET 9 structure diagrams. describe and explain the formation and characteristics of covalent bonds covalent molecular substances write and interpret formulae of covalent molecular elements and compounds describe and explain the relationships between properties and structures of covalent molecular substances draw representations of molecular substances using electron dot (octet only) or Lewis structure diagrams. Chapter 5 5.1-5.3 TASK 2 5.4 write the chemical formulae for molecular compounds based on the number of atoms of each element present as inferred from the systematic names write the molecular formulae of commonly encountered molecules that have nonsystematic names describe and explain the formation and characteristics of covalent bonds covalent network substances write and interpret formulae of covalent network elements and compounds describe and explain the relationships between properties and structures of covalent network substances SET 7 (extension) Chapter 6 ( completion of set tasks atomic structure and bondins) SET 10 Sets 8-11 SET 11 SET 12 TASK 3 6.1-6.8 Applied chemistry describe the relationships between properties and uses of ionic, metallic, covalent network and covalent molecular substances found in and around the home E8 E9 I4 TEST 1 Atomic Structure and Bonding Stoichiometry 7-8 perform simple calculations: 1. molar mass 2. mole to mole 3. mass to mole 4. mass to mass 5. percentage composition Chapter 7 7.1-7.5 (Qualitative only) Set 12 I5 I6 E 11 SET 13 SET 14 Macroscopic properties of matter Kinetic Theory 9-10 use the Kinetic Theory of Matter to explain 1. relationship between heat and temperature 2. change of phase 3. vapour pressure and factors 9.8 Set 3 SET 1 that affect vapour pressure 4. effect on gases of changes in pressure, temperature and volume 5. the characteristics of gases predict the effect on gases of changes in pressure, temperature and volume (qualitative only) explain the boiling point of a liquid. Stoichiometry perform simple calculations: 1. mass to volume (gases at S.T.P) 2. volume to volume 3. volume (at S.T.P) to moles use molar volume of gases at STP in calculations involving the evolution of gases predict the effect on gases of changes in pressure, temperature and volume (qualitative only) explain the boiling point of a liquid. Set 18 Set 19 Chapter 8 TASK 4 Investigatio n: I3 or I6 8.1-8.8 TEST 2 Part1 STOICHIOMETRY and KINETIC THEORY Set 2 Solutions 11-12 describe the characteristics of homogeneous and heterogeneous mixtures distinguish between pure substances, homogeneous mixtures and heterogeneous mixtures. identify, explain and give examples of saturated, unsaturated and supersaturated solutions apply solubility rules to predict if a precipitate will form when two dilute ionic solutions are mixed (see data sheet) use the colour of ions (see data sheet) to identify reactants and the products in chemical processes explain the effect of concentration on vapour pressure, melting point and boiling point of a solution describe the characteristics and give examples of strong, weak and nonelectrolytes explain the differences between concentrated and dilute solutions of strong and weak electrolytes. Set 15 Chapter 9 9.1 - 9.6 SET 19 E3 E4 E5 I2 I3 SET 20 9.7 (extension) Stoichiometry 12-13 perform simple calculations involving concentration calculations (moles per Litre, grams per Litre) Applied chemistry SET 21 E 12 I7 TASK 5 describe and give examples of solutions and their uses in and around the home explain concentration units used in household mixtures (g 100g-1, mL L-1, g mL1, percentage composition) STAWA Calc Sets Test Sample EXAM WEEK 15/16 Chemical reactions Reactions, equations and stoichiometry write equations for simple chemical reactions (molecular or ionic) using state symbols where appropriate. explain conservation of mass, atoms and charge during a chemical reaction. perform stoichiometric problems that interrelate mass, molar mass, number of moles of solute, and concentration and volume of solution. SET 6 Chapter 10 TASK 6 Test SET 17 10.1 - 10.5 SET 22 Applied chemistry investigate a biological, environmental or industrial process applicable to a chosen context e.g. chemicals in the garden, kitchen chemistry or chemistry of cleaning. Include: 1. a description of the chosen process 2. an explanation of relationships between the chosen process and chemical models and theories 3. where appropriate: safe handling and disposal of any materials or specific chemicals involved in the process discussion of sustainability of the process Chapter 11 11.1 - 11.3 TASK 7 Report: E 14 E 15 TASK 8 TEST 2 Part 2 SOLUTIONS & STOICHIOMETRY Investigatio n: Rates of Reaction: Clock Reaction. (Or selection I8 – I10) Energy effects 1719 use the Law of Conservation of Energy to explain endothermic and exothermic reactions apply the concepts of system and surroundings to energy transfer explain enthalpy (H) in terms of stored Unit 2A I8 E 16 E 17 E 18 SET 15 chemical energy explain endothermic and exothermic reactions in terms of bond breaking and bond making interpret and explain enthalpy diagrams and equations that include the heat lost or gained Revision Applied chemistry describe and explain common examples of endothermic and exothermic reactions or processes in and around the home e.g. combustion, hot packs, change of phase TASK 9 Practical Test 1 TASK 10 I 8- I 11 (selection) Reaction rates describe the rate of a reaction in terms of rate of change of a measurable quantity with time identify and apply the factors affecting rates of reaction: 1. concentration 2. catalysts 3. temperature 4. state of sub-division apply the collision theory to explain the factors affecting rates of reaction draw and interpret energy profile diagrams to show the transition state, activation energy, uncatalysed and catalysed pathways and the heat of reaction explain the relationship between collision theory, kinetic energy distribution graphs and the rate of a reaction. SET 16 TASK 11 TASK 12 Practical Reports (Due on completion of each experiment) Applied chemistry describe and explain examples where rates of reaction have been altered in and around the home investigate real world problems in a laboratory setting with appropriate teacher direction, considering: 1. sources of uncertainty in experimental measurements 2. selection of the appropriate units of measurement of quantities such as volume and time TEST 3 ENERGY AND RATES OF REACTION SEMESTER TWO: 2B 19-20 Chemical reactions Chapter 12 Reactions, equations and stoichiometry write equations that show only the species involved in the reaction perform calculations involving limiting reagent. empirical formula molecular formula 21-23 Acids and bases in aqueous solutions describe, explain and apply an understanding of the Arrhenius and Brønsted-Lowry models of acids and bases describe and explain the difference between strong acids including HCl, H2SO4, HNO3 and weak acids including CH3COOH and H3PO4 identify acids by: 1. indicator colour 2. pH scale value 3. reaction with: o metal carbonates and hydrogen carbonates o metals such as magnesium and iron o metal oxides o metal hydroxides describe and explain the difference between strong bases including group 1 and group 2 hydroxides and weak bases including NH3 and Na2CO3 identify bases by 1. indicator colour 2. pH scale value 3. reaction with: o acids o ammonium salts write equations for the successive ionisation of polyprotic acids describe, write equations and predict observations for the following reaction types: 1. acid-base 2. acid-carbonate 3. acid-metal qualitatively apply the pH scale describe properties and reactions of non-metal and metal oxides e.g. reaction of SO2 with water. Set 16 12.1-12.5 Set 17 Chapter 13 13.1 - 13.8 TASK 4 E 19, 20 Assign Acids /Bases Set 21 Set 22 E21 – 24 (selection) TASK 1 Investigation: (Selection: I11 – I13) Set 23 I 12 – I 13 (selection) Applied chemistry describe and explain the formation and impact of acids in the environment e.g. rain, acid rain, soil acidification in agriculture or acidification of ground water by mineral sulfides. TASK 3 TEST 4 ACIDS, BASES, STOICHIOMETRY 24-27 Oxidation and reduction explain oxidation and reduction as an electron transfer process Chapter 14 14.1 - 14.4 Set 24 calculate oxidation numbers identify and name oxidants and reductants in equations identify oxidation-reduction reactions using oxidation numbers describe, write equations for and interpret observations for: o metal displacement reactions o halogen displacement reactions write balanced simple redox equations (metal/metal ion, metal/hydrogen ion and halogen/halide ion) describe and explain how an electric current is conducted in an electrolytic cell describe and explain the following during the operation of an electrolytic cell: o anode processes o cathode processes o role of the electrolyte o direction of ion migration o direction of electron flow in external circuit o electrode product prediction for molten metal o halides only. TASK 2 Assign Redox Set 25 E 25 E 26 Chapter 15 Set 26 15.1 - 15.5 E 27 Applied chemistry predict and name the electrode products for the electrolysis of molten metal halides only. describe electro-winning and electro-refining investigate real world problems in a laboratory setting with appropriate teacher direction, considering: o sources of uncertainty in experimental measurements o selection of the appropriate units of measurement of quantities such as volume and time 60 61 TASK 6 Test 62 TEST 5 REDOX AND ELECTROLYSIS Chapter 16 28-30 TASK 5 Assign Org Organic chemistry 16.1-16.2 describe the bonding capacity of carbon explain the diversity of carbon based compounds Alkanes: name and draw straight and simple branched to C8 observations and equations for: o substitution reactions o combustion reactions draw and name structural isomers Alkenes: name and draw straight and simple branched to C8 (only one double bond per structure) E 29 E 30 16.3 Set27 write observations and equations for: o addition reactions with halogens and hydrogen o combustion reactions draw and name structural and geometric isomers Cycloalkanes and Cycloalkenes: draw and name simple structures to C8 write observations and equations for: o substitution and combustion reactions for cycloalkanes o addition and combustion reactions for cycloalkenes Benzene: explain the unique structure and reactivity of benzene write equations for: o catalysed substitution reactions with halogens o combustion reactions 16.4 16.5 Set 28 Set 29 16.6 TASK 7 Investigation: I14 (Chemical composition of Rocks 31-32 TASK 8 Applied chemistry describe and explain the sources and uses of hydrocarbons e.g. fuels perform calculations involving empirical formula calculations using percentage composition, mass composition and combustion data investigate a biological, environmental or industrial process applicable to the context/s chosen e.g. catalytic cracking of hydrocarbons, electroplating, electrowinning or chemistry in agriculture. Include: o a description of the chosen process o an explanation of the relationships between the chosen process and chemical models and theories o where appropriate: safe handling and disposal of any materials or specific chemicals involved in the process discussion of sustainability of the Practical Test 2 REACTIONS TASK 9 Test process discussion of the environmental impact of the process. TEST 6 ORGANIC CHEMISTRY 33 REVISION (Due on completion of each experiment) 34 EMISTRY TASK 11 Practical Reports END OF YEAR EXAM 2A/B TASK 10