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Any of six colorless, crystalline, isomeric acids having the formula C9H10O2, derived from xylene.

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Ligand

A Lewis base in a coordination compound.

van der Waals' Equation

An equation of state that extends the ideal gas law to real gases by inclusion of two empirically determined parameters, which are different for different gases.

Covalent Bond

Chemical bond formed by the sharing of one or more electron pairs between two atoms.

Functional Group

A group of atoms that represents a potential reaction site in an organic compound.

Crystalline Solid

A solid characterized by a regular, ordered arrangement of particles.

History of fireworks

There is an assumption that the history of fireworks started in China, about 2000 years ago. It is possible that the Chinese accidentally discovered explosions by burning bamboo canes.

Heat of Crystallization

The amount of heat that must be removed from one gram of a liquid at its freezing point to freeze it with no change in temperature.

Saccharide

An organic compound containing a sugar or sugars.

Transition State Theory

Theory of reaction rates that states that reactants pass through high-energy transition states before forming products.

Two chemistry egg tricks

The French have a saying: "You cannot cook an omelet without breaking eggs."Chemists hearing this proverb totally disagree. There is nothing easier than cleaning an egg without breaking its shell.
Probably our readers have already guessed how to do this, as it’s known that the hard shell of the egg is carbon dioxide, like chalk and marble.