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Binary compounds of boron and hydrogen.

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Nuclide Symbol

Symbol for an atom A/Z E, in which E is the symbol of an element, Z is its atomic number, and A is its mass number.

Distillation

The separation of a liquid mixture into its components on the basis of differences in boiling points. The process in which components of a mixture are separated by boiling away the more volitile liquid.

Reducing Agent

The substance that reduces another substance and is oxidized.

Donor Atom

A ligand atom whose electrons are shared with a Lewis acid.

Dipole

Refers to the separation of charge between two covalently bonded atoms.

Silicones

Polymeric organosilicon compounds, contain individual or cross-linked Si-O chains or rings in which some oxygens of SiO4 tetrahedra are replaced by other groups.

Insoluble Compound

A very slightly soluble compound.

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.

Fractional Precipitation

Removal of some ions from solution by precipitation while leaving other ions with similar properties in solution.

Complex Ions

Ions resulting from the formation of coordinate covalent bonds between simple ions and other ions or molecules.