The effect of temperature on chemical equilibrium (observation)

Change in the colour of the cobalt(II) chloride solution due to heating and cooling.

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The effect of concentration on chemical equilibrium

Examining the colour of cobalt(II) chloride in water and hydrochloric acid.

Smeltning og frysning

Under frysning dannes hydrogenbindinger mellem vandmolekyler, hvilket resulterer i en...

Opløsning af NaCl

Almindeligt salt er opløst af vand: Polar vandmolekyler danner en belægning omkring ionerne.

Bending a jet of water

A surprising phenomenon occurs when we hold a statically charged ruler near water flowing from a...

Fruit batteries

Electric current of small voltage can be created by using fruit, similarly to the Daniell cell.

Reaktion mellem hydrogen og oxygen

Knallgas er blandingen af ​​hydrogen og oxygen. Den eksploderer, når den tændes.

Udvikling af atommodellen

Store faser i teoriernes historie og synspunkter om atomets struktur.

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