Unit 7 (Part 4) Vocab

Front

A system where matter can enter or escape the surroundings.

Back

open system

Front

A system where no matter enters or leaves

Back

closed system

Front

A substance present at the start of a chemical reaction

Back

reactant

Front

A substance produced in a chemical reaction

Back

product

Front

Abbreviation of an element's name (1-3 letters)

Back

element symbol

Front

A number in front of a chemical formula indicating the amount of molecules or atoms in a reaction.

Back

coefficient

Front

Symbols showing elements in a compound and atom ratios

Back

chemical formula

Front

Matter is neither created nor destroyed in any change.

Back

Law of Conservation of Mass

Front

Combining parts into a whole

Back

synthesis

Front

Chemical reaction breaking down compounds into simpler products.

Back

decomposition