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OCR Gateway B Module C6: Chemistry Out There


Chemical tests for hydrogen and oxygen:

Electrolysis:

Products of electrolysis:

Electrolysis of sodium chloride solution:


Energy Transfers - fuel cells:

Hydrogen-oxygen fuel cells - equations:


Redox reactions:

Displacement reactions:

Methods of preventing rust:


Alcohols:


CFCs:

The ozone layer:


Hardness of water:

Softening water:


Fats and oils:

Saponification:


Washing powder ingredients:

Washing-up liquid ingredients:

Low temperature washing:

Detergents:

Dry cleaning:


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