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A substance that conducts electricity poorly in a dilute aqueous solution.

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Clay

A class of silicate and aluminosilicate minerals with sheet-like structures that have enormous surface areas that can absorb large amounts of water.

First Law of Thermodynamics

The total amount of energy in the universe is constant (also known as the Law of Conservation of Energy) energy is neither created nor destroyed in ordinary chemical reactions and physical changes.

xenon tetrafluoride

A colorless, crystalline compound, XeF4, prepared by heating a gaseous mixture of fluorine and xenon.

Buffer Solution

Solution that resists change in pH, contains either a weak acid and a soluble ionic salt of the acid or a weak base and a soluble ionic salt of the base.

Molecular Formula

Formula that indicates the actual number of atoms present in a molecule of a molecular substance.

Formula Weight

The mass of one formula unit of a substance in atomic mass units.

 

Bonding Pair

Pair of electrons involved in a covalent bond.

Heterogeneous Mixture

A mixture that does not have uniform composition and properties throughout.

yield

The quantity of product formed by the interaction of two or more substances, generally expressed as a percentage of the quantity obtained to that theoretically obtainable.

Allotropes

Different forms of the same element in the same physical state.