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What is Le Châtelier's principle?

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 example if you heat a reaction that has r...
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Answered by Thomas G. • Chemistry tutor
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Name the type of reaction that takes place when calcium carbonate is heated strongly?

This is called thermal decomposition. CaCO 3 decomposes into calcium oxide (CaO) and Carbon Dioxide (CO 2 ).
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Answered by Thomas G. • Chemistry tutor
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What is oxidation?

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.
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Answered by Thomas G. • Chemistry tutor
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Describe a single covalent bond in terms of the electron distribution of the atoms involved.

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 bond, which will then orbit both atoms s...
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Answered by Thomas M. • Chemistry tutor
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The element sulfer is a common componant of coal. When the coal is burned, what pollutant will the sulfer form? How will this new compound impact the environment?

Sulfer, when burned in the presence of oxygen, will form sulfer dioxide (SO 2 ​). This can then dissolve in rain water, forming sulfuric acid. This will then fall to the ground as acid rain which can then ki...
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Answered by Thomas M. • Chemistry tutor
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