HChem Unit 6

Front

Law of Conservation of Mass

Back

Matter is not created nor destroyed in any chemical or physical change

Front

Chemical equation

Back

A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products

Front

Chemical reaction

Back

The process by which one or more substances change to produce one or more different substances

Front

Chemical formula

Back

Shows the elements in the compound and the ratio of atoms

Front

Reactants

Back

A substance that takes part in and undergoes change during a reaction.

Front

Products

Back

The substances that are formed by the chemical change

Front

Coefficients

Back

The numbers that appear before the formulas

Front

Subscripts

Back

Numbers written below the line that tell how many atoms of a given type are in a compound.

Front

Combustion reaction

Back

A chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light

Front

Synthesis reaction

Back

A chemical reaction in which two or more substances react to yield a single product