Reactions Vocab

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

• chemical reaction

• physical reaction

a starting material in a chemical reaction

• products

• reactants

• yield

• coefficients

The elements or compounds produced by a chemical reaction.

• reactants

• products

• yields

• coefficients

A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.

• coefficient

• subscript

• chemical reaction

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

• law of conservation of mass

• chemical reaction

• physical change

• coefficients

a reaction in which two or more substances combine to form a new compound

• decomposition

• synthesis

• single replacement

• double replacement

chemical reaction in which one substance breaks down into two or more substances

• decomposition

• synthesis

• single replacement

• double replacement

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

• synthesis

• decomposition

• combustion

• single replacement

a chemical change in which one element replaces a second element in a compound

• synthesis

• decomposition

• single replacement

• double replacement

a chemical reaction between two compounds where the positive ion of one compound is exchanged with the positive ion of another compound

• synthesis

• decomposition

• single replacement

• double replacement