September 20, 2024

Single replacement reactions | Chemistry | Khan Academy

Author: Khan Academy via YouTube
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https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:chemical-reactions/x2613d8165d88df5e:types-of-chemical-reactions/v/single-replacement-reactions

When one element replaces another element in a compound, we call it a single replacement reaction. In these reactions, one atom loses electrons (oxidation) while another element gains those electrons (reduction), making them a form of a redox reaction. Learn to use the Activity Series, which ranks elements by their reactivity and helps predict if the reaction will occur.

Sections:
00:00 – Intro
00:38 – Copper in silver nitrate
01:22 – What is single replacement rxn?
01:58 – What causes single replacement rxn?
03:48 – Oxidation & reduction
04:47 – Why doesn’t gold react with silver nitrate?
05:47 – Activity series
06:49 – Example 1 (Zinc in copper sulphate)
08:37 – Example 2 (Silver in zinc sulphate)
09:40 – Example 3 (Magnesium in HCl)
11:16 – Why are acids stored in glass containers?
11:58 – Anionic single replacement rxns

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