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- Metals Nonmetals and Semimetals (19:58, 16 June 2012)
- Properties of metals (19:58, 16 June 2012)
- Properties of nonmetals (19:58, 16 June 2012)
- Properties of semimetals (19:58, 16 June 2012)
- Periodic trends (19:59, 16 June 2012)
- Atomic size (19:59, 16 June 2012)
- Ionic size (19:59, 16 June 2012)
- Metallic characteristic (20:00, 16 June 2012)
- Melting point and boiling point (20:00, 16 June 2012)
- Electronegativity (20:00, 16 June 2012)
- Ionic bonding (20:00, 16 June 2012)
- Covalent bonding (20:01, 16 June 2012)
- Solution (20:01, 16 June 2012)
- Polarity of molecules (20:02, 16 June 2012)
- Molar mass (04:09, 9 September 2012)
- Calculations involving Avogadro's number (23:39, 9 September 2012)
- Specific gravity (05:37, 14 September 2012)
- Density (14:15, 14 September 2012)
- Empirical formula to molecular formula (07:11, 15 October 2012)
- Molar volume of a gas (07:23, 15 October 2012)
- Strong and weak bases (18:48, 9 November 2012)
- Enthalpy changes (22:03, 26 December 2012)
- Combustion reactions (22:00, 5 November 2013)
- Empirical formula (04:36, 24 February 2014)
- Metric system (19:05, 7 January 2015)
- SI system (19:53, 7 January 2015)
- Temperature (06:37, 13 January 2015)
- Naming binary acids (06:09, 22 January 2015)
- Naming binary compounds (06:32, 22 January 2015)
- Mole concept (07:09, 23 January 2015)
- Combination or Synthesis reactions (06:27, 22 February 2015)
- Calculations based on chemical equations (05:52, 19 March 2015)
- Chemical reactions: conventions and symbols (05:54, 19 March 2015)
- Decomposition reactions (05:06, 21 October 2015)
- Rules for rounding numbers (23:14, 14 May 2016)
