Unit 2 Chemical Reaction Vocab

Front

Does not allow matter or energy to enter or escape.

Back

Closed system

Front

Allows matter or energy to enter or escape.

Back

Open system

Front

Process where substances transform into new ones due to atomic rearrangement.

Back

Chemical reaction/change

Front

Occurs when particle spacing or interactions change without altering atom arrangement.

Back

Physical change

Front

Symbolic representation of reactants and products in a chemical reaction.

Back

chemical equation

Front

Mix into another substance at the particle level.

Back

dissolve

Front

Scientific principle: mass is neither created nor destroyed during a chemical reaction.

Back

Law of conservation of mass

Front

Final substances at the end of a reaction.

Back

products

Front

Insoluble solid formed when two liquid solutions mix.

Back

precipitate

Front

Original substances before a reaction.

Back

Reactants