Topic 21 : Periodic Table

Here are some interesting websites if you are curious about how each elements look like:

http://ed.ted.com/periodic-videos
https://www.youtube.com/watch?v=wvblSXIdf3A


The Powerpoint slide used in the lesson is available [here].

Topic 20: Acid, Base and Salts notes

Salam and good morning!

Here are the lesson objectives:

• describe the meanings of the terms acid and alkali in terms of the ions they contain or produce in aqueous solution
• describe the characteristic properties of acids as in their reactions with metals, bases, carbonates and their effects on indicator paper
• describe the characteristic properties of bases as in their reactions with acids and with ammonium salts and their effects on indicator paper
• describe neutrality, relative acidity and alkalinity, and neutralisation in terms of pH (whole numbers only), measured using Universal Indicator paper
• describe and explain the importance of controlling acidity in soil
• classify oxides as either acidic, basic, or amphoteric related to metallic/non-metallic character
• describe the preparation, separation and purification of salts as examples of some of the techniques specified in topic 1.2(c): methods of preparing salts to illustrate the practical techniques should include the action of acids with insoluble bases, and acids with insoluble carbonates
• suggest a method of preparing a given salt from suitable starting materials, given appropriate information

Here is the link to the notes for this topic: [PowerPoint] [Word Document].

Please don't forget the important reactions and its names.