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Changes in Matter

Test Review

TermDefinition
Chemical Change Chemical change is any change that results in the formation of new chemical substances.
Physical Change A physical change is any change NOT involving a change in the substance's chemical identity.
Chemical Property A chemical property is any of a material's properties that becomes evident during, or after, a chemical reaction.
Physical Property A physical property is any property that is measurable, whose value describes a state of a physical system.
Synthesis Two or more elements or compounds combine to make a more complex substance.
Decomposition Compounds break down into simpler substances.
Single Replacement Occurs when one element replaces another one in a compound.
Double Replacement Occurs when different atoms in two different compounds trade places.
Atom The smallest object that retains properties of an element.
Molecule A molecule is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound.
Conservation of Mass A principle stating that mass cannot be created or destroyed.
Reactants The reactants are the substances that are present before the chemical change takes place.
Products The compounds that are formed when a reaction goes to completion.
Created by: cupcakes26
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