Mixing substances, separating mixtures 2

Separating mixtures if one of the substances dissolves in water.

Bending a jet of water

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

The surface tension of liquids

We observe whether a razor blade can float on the surface of different liquids.

Viscosidad de líquidos

Have you ever thought about why honey flows so slowly from a spoon compared to water?

La oxidación del alcohol

Examining the colour of a piece of copper when exposed to heat and then ethanol vapour.

Mixing substances, separating mixtures 1

The method of separation of substances in a mixture depends on their different properties.

The effect of temperature on chemical equilibrium

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

The reaction between aluminium and iodine

Catalysed by a few drops of water, aluminium reacts with iodine.

The effect of pressure change on chemical equilibrium

Examination of dissolved carbon dioxide in a bottle of carbonated water.

The effect of concentration on chemical equilibrium

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

Tensión superficial de líquidos 2

In this video we are experimenting with food colourings.

The production of ethylene and its reaction with bromine water (observation)

Ethylene, produced by the heating of polyethylene, changes the colour of bromine water.

Tensión superficial de líquidos

We observe whether a razor blade can float on the surface of different liquids.

Reacción entre el aluminio y el bromo

The halogens and the metals combine to produce bromides.

The effect of temperature on chemical equilibrium (observation)

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

The effect of concentration on chemical equilibrium (observation)

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

The production of ethylene and its reaction with bromine water

Ethylene, produced by the heating of polyethylene, changes the colour of bromine water.

Like dissolves like

Non-polar substances dissolve in non-polar solvents while polar substances dissolve in polar...

Exothermic reaction

When heated, powdered sulphur reacts with powdered zinc, releasing heat.

Oxidising and reducing agent within a single compound

Decomposition of ammonium dichromate by heating.

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