Category Archives: C4 Stoichiometry, C5 Electricity & Chemistry, C6 Energy Changes in Chemical Reactions

C4 Stoichiometry (Combined Science)

Here are some key terms for this topic: Key Terms C4

IGCSE Chemistry: Topic 4 Stoichiometry, a series of 9 lessons from Sal Sciab.

A superb power-point from Mr Taylor (we thank you):

Reactions & Formulas from Stephen Taylor

Balancing chemical equations (from the Khan Academy):

You can practise balancing chemical reactions here – and it’s fun (honestly). Or you could play Chemical Compound Hangman.

GCSE s-cool – Writing Formulae & Balancing Equations (includes ‘the Mole’ but not molar calculations) – revision notes & animations, practise exam questions & a revision summary. Worksheets from Mr Guch that cover Naming Compounds; and here are some more. And here’s some more on Balancing Equations. Also Chemactive worksheets & answers just click on Reactions questions.

For Doc Brown’s Chemistry quizzes, word-fills, crosswords and study notes go here and just scroll down.

The law of conservation of mass – Todd Ramsey – a 4m 30s TED-Ed lesson.

2 videos on Stoichiometry which probably go into too much detail but are very good – Hank Green from Crash Course Chemistry talks very fast & Salman Khan does not.

C5 Electricity and Chemistry (Combined Science)

Here are some key terms for this topic: Key Terms C5

IGCSE Electricity from Carole Paquette

GCSE Bitesize electrolysis has revision pages (that take you through the topic), a test and an activity. Doc Brown has a matching pairs quiz & worksheets on electrolysis, just scroll down to ’21 electrolysis and its applications’. The s-cool revision site lets you revise the topic, summarizes the topic & tests you on it.

IGCSE Chemistry: Electrolysis, an 11m lesson from ChemistryKlipz.

Science Bank 2 (Electrochemistry): part 1 – electrolysis of a melt (to 5m 30s); part 2 – electrolysis of solution (to 9m 30s); part 3 – electroplating (to 14m 15s):

Bitesize Top 20 Demos – Electrolyosis: Electrolplating – a 2m 14s video.

C6 Energy Changes in Chemical Reactions (Comb. Science)

GCSE Bitesize has revision pages (that take you through the topic), a test and an activity, just scroll down to Exothermic & Endothermic Reactions.

GCSE s-cool – electrolysis includes Energy Changes in chemical reactions – revision notes & animations.

For Doc Brown’s Chemistry quizzes, word-fills, crosswords and study notes go here and just scroll down.

A 3m41s vid on Endothermic & Exothermic Reactions (Bitesize Top 20 Demos):

Science Bank (Reactions & Energy Changes): part 1 – exothermic & endothermic reactions (just the first 4m 40s):

BBC Short Circuit Energy Changes – a 19m video.