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chem stack 2

chapter 2 vocab

matter substance in which all materials are made
pure substance A sample of matter, either an element or a compound, that consists of only one component
element 1.One of the simplest or essential parts or principles of which anything consists, or upon which the constitution or fundamental powers of anything are based
compound combinations of two or more elements
mixture a mixture is a material system made up by two or more different substance which are (mixed) together but are not combined chemically.
homogeneous mixture A substance that is uniform in composition
heterogeneous mixture consists of visibly different substances or phases
distillation a unit operation, or a physical separation process, and not a chemical reaction.
physical changes any change not involving a change in the substance's chemical identity
physical properties used to observe and describe matter
chemical changes bonds are broken and new bonds are formed between different atoms
chemical properties describes its "potential" to undergo some chemical change or reaction by virtue of its composition.
law of conservation of matter A principle in classical physics stating that the total mass of an isolated system is unchanged by interaction of its parts.
Created by: carmen9295