1. Please clear your tabletops except for a writing instrument and calculator Set up test dividers Take a periodic table from the overhead

2. Read Test Instructions Carefully! Ignore the total marks I’ve given I will re-mark #8 (1), 14 (3), 15 (2), 19 (3); if you already got full marks, don’t change your answers Multiple choice section will be out of 4 so your test is out of 38

3. 14: molar volume is the volume per mole and I will also accept mole per volume 15: which ions are in strontium cyanide? What should each of their concentrations be, using their ratios? 19: this is like a proportion question but you can even do it by guess & test. Hint: assume 1L to start.

4. Unit 1 – Safety, Units, Sig Figs, Measurements

5. 30.0 mL15.50 cm What is the last digit in a measurement called? Uncertain

6. Unit 1 – Safety, Units, Sig Figs, Measurements Accurate & precise Accurate, not precise Not accurate, not precise Not accurate, precise

7. Unit 1 – Safety, Units, Sig Figs, Measurements A measurement is given as 9.00 lb/in 3. If 1 kg = 2.2 lb and 1 m = 39 in, convert the measurement into kg/m 3. Exact vs. measured conversion factors

8. Unit 1 – Safety, Units, Sig Figs, Measurements Lab safety SI units & prefixes

9. Unit 2 – Matter Classification matter example: example: example:

10. Unit 2 – Matter Physical vs. chemical change Physical change: no new substances formed Chemical change: new substances formed

11. Unit 2 – Matter Heat vs. temperature Kinetic molecular theory: how particles move within solids, liquids and gases

12. Unit 2 – Matter Heating curve: what happens at each point?

13. Unit 2 – Matter Design an experimental procedure to separate mixtures using separation techniques 1)Chromatography 2)Evaporation 3)Distillation 4)Recrystallization 5)Filtration 6)And of course….hand separation

14. Unit 3 – Atomic Theory & Periodic Table Naming compounds – Covalent – Simple Ionic – Polyatomic – Multivalent – Hydrates

15. Unit 3 – Atomic Theory & Periodic Table Naming compounds Practice: a) strontium cyanide – Sr(CN) 2 b) CuCl 2 ·3H 2 O – copper(II) chloride trihydrate c) N 4 O 7 – tetranitrogen heptoxide d) barium bisulfate – Ba(HSO 4 ) 2 Polyatomic ions can have different names Look carefully!

16. Unit 3 – Atomic Theory & Periodic Table Important scientists and their contributions to the model of the atom Atomic structure: subatomic particles (proton, electron, neutron) Nuclear notation

17. Unit 3 – Atomic Theory & Periodic Table The 3 big trends Atomic radius Electronegativity Ionization energy

18. Unit 3 – Atomic Theory & Periodic Table Lewis structures, formal charges and polarity Practice: draw all possible Lewis structures for C – N – O Which is most stable?

19. Unit 4 – Mole 1 st step is always to look at the units What are your initial units? What are the final units you want?

20. Unit 4 – Mole Conversion factors: – Avogadro’s number – Molar mass – Density – STP – Molar ratio – Concentration