February 2025

The reduction process

By |2025-02-12T09:43:27+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

ZIMSEC O Level Combined Science Notes:  The reduction process

  • Reduction is the opposite of oxidation
  • Reduction is the removal of oxygen from a substance/compound
  • It can also be the addition of oxygen

The reduction of copper. Image credit chemistrydemos.co.uk The reduction of copper.

  • A reducing agent removes oxygen or adds hydrogen
  • Metals cannot be […]
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Experiment:Hydrogen as a reducing agent

By |2025-02-12T09:45:03+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

ZIMSEC O Level Combined Science Notes: Experiment:Hydrogen as a reducing agent

Aim: To show that hydrogen can act as a reducing agent

Materials: hard glass test-tube with a small hole near the end, copper oxide, burner, cork with a short glass tube, rubber tube

Reducing copper using hydrogen Reducing copper using hydrogen

Method

  1. Place a spatula load […]
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