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Latest Articles

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    Metals have been used by people since ancient times. All the time the process of obtaining them was improved, useful alloys of various metals appeared. Let’s look at interesting facts about metals.

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  • The most expensive metal in the world

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  • Varieties of garnet minerals

    The most famous type of garnet stone is pyrope (flaming). This is the "oldest of garnets", with a dense red color, similar to the grain of an edible garnet. Pyrope has a variety called rhodolite - a stone of dense pink or pink-purple color, which sometimes has the alexandrite effect and is used in...

  • Ozone

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Matter

Anything that has mass and occupies space.

Alums

Hydrated sulfates of the general formula M+M3+(SO4)2.12H2).

Octahedral

A term used to describe molecules and polyatomic ions that have one atom in the center and six atoms at the corners of a octahedron.

Insoluble Compound

A very slightly soluble compound.

Stoichiometry

Description of the quantitative relationships among elements and compounds as they undergo chemical changes.

Amino Acid

Compound containing both an amino and a carboxylic acid group.The --NH2 group.

Sigma Orbital

Molecular orbital resulting from head-on overlap of two atomic orbitals.

Mixture

A sample of matter composed of two or more substances, each of which retains its identity and properties.

Collision Theory

Theory of reaction rates that states that effective collisions between reactant molecules must occur in order for the reaction to occur.

Theoretical Yield

Maximum amount of a specified product that could be obtained from specified amounts of reactants, assuming complete consumption of limiting reactant according to only one reaction and complete recovery of product.