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Le Châtelier's principle is that when a system has reached a dynamic equilibrium the position of equilbrium will move to resist any change that is imposed on it.

For exampl...

This is called thermal decomposition. CaCO₃ decomposes into calcium oxide (CaO) and Carbon Dioxide (CO₂).

Oxidation is the loss of electrons from a molecule, atom, or ion. This corresponds to an increase in the oxidation number of the molecule, atom, or ion.

Atoms involved in a covalent bond will share ​a pair of electrons in order to acheive a full outer shell in both atoms. Each atom will donate a single electron to the ...

Sulfer, when burned in the presence of oxygen, will form sulfer dioxide (SO₂​). This can then dissolve in rain water, forming sulfuric acid. This will then fall to the ground as acid rain wh...