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Changes in matter
TEST REVIEW
Term | Definition |
---|---|
Chemical change | is a change in which no new substances are formed. |
Physical change | is a change in which no new substances are formed. |
Chemical property | characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed |
physical property | is any property that is measurable, whose value describes a state of a physical system. |
Synthesis | combination or composition, in particular. |
Decomposition | the state or process of rotting; decay |
Single replacement | is a type of oxidation-reduction chemical reaction when an element or ion moves out of one compound and into another |
Double replacement | reaction a chemical reaction between two compounds where the positive ion of one compound is exchanged with the positive ion of another compound. |
Atom | The atom is a basic unit of matter that consists of a dense central nucleus surrounded by a cloud of negatively charged electrons |
Molecule | a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction. |
Conservation of mass | stating that mass cannot be created or destroyed. |