Chemistry - Answer>> The scientific discipline that treats the composition, properties, and transformations of matter.
Matter - Answer>> Anything that occupies space and has mass; the physical material of the universe.
Property - Answer>> A characteristic that gives a sample of matter its unique identity.
Element - Answer>> A substance that cannot be separated into simpler substances by chemical means.
Atom - Answer>> The smallest representative particle of an element.
Molecule - Answer>> A chemical combination of two or more atoms.
States of Matter - Answer>> The three forms that matter can assume: solid, liquid, and gas.
Gas - Answer>> Matter that has no fixed volume or shape; it conforms to the volume and shape of its container. Liquid - Answer>> Matter that has a distinct volume but no specific shape.
Solid - Answer>> Matter that has both a definite shape and a definite volume.
Pure Substance - Answer>> Matter that has a fixed composition and distinct properties.
Compound - Answer>> A substance compose of two or more elements united chemically in definite proportions.
Mixture - Answer>> A combination of two or more substances in which each substance retains its own chemical identity.
Law of Constant Composition - Answer>> A law that states that the elemental composition of a pure compound is always the same, regardless of its source; also called the law of definite proportions.
Heterogeneous Mixture - Answer>> A mixture which does
not have the same composition, properties, and appearance throughout.
Homogeneous Mixture - Answer>> A mixture which has uniform composition, properties, and appearance throughout.
Solution - Answer>> A mixture of substances that has a uniform composition; a homogeneous mixture.