Calcium carbonate (CaCO₃)
Limestone is a widely and diversely used material.
This lesson helps to explain chemical reactions.
A colorless, heavier-than-air gas with a pungent odor.
One of the hydrogen halides, a highly aggressive substance - it even attacks glass.
A compound ion, the main source of nitrogen for plants.
Catalysed by a few drops of water, aluminium reacts with iodine.
Glass items are an integral part of everyday life. But how are they made?
Colorless, odorless, heavier-than-air gas. Necessary for the photosynthesis of plants.
The experiments in this lesson will introduce you to the various types of chemical reactions.