Chemical Reactions Vocabulary

Matter cannot be created or destroyed, only transformed

• Law of Conservation of Energy

• Law of Conservation of Matter

• Law of Conservation of Atoms

• Law of Conservation of Compounds

Tags

NGSS.HS-PS1-7

Equation that uses symbols to represent a chemical reaction and shows the relationship between the reactants and products of a reaction.

• Compound Equation

• Atomic Equation

• Chemical Equation

• Mass Equation

Tags

NGSS.HS-PS1-7

Substances that participate in a chemical reaction

• chemicals

• compounds

• products

• reactants

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The substance that forms in a chemical reaction

• reactants

• products

• chemicals

• gases

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A chemical reaction in which energy is released to the surroundings as heat

• exothermic reaction

• thermal reaction

• heat reaction

• endothermic reaction

Tags

NGSS.HS-PS1-4

A chemical reaction in which more energy is needed to break the bonds in the reactants than is produced by forming bonds in the products

• endothermic reaction

• heat reaction

• thermal reaction

• exothermic reaction

Tags

NGSS.HS-PS1-4

A reaction in which multiple substances combine to form a new compound.

A+B—>AB

• synthesis reaction

• decomposition reaction

• Combustion reaction

• single-displacement reaction

Reactions in which substances are broken apart.

AB—>A+B

• single-displacement reaction

• synthesis reaction

• decomposition reaction

• double-displacement reaction

The oxidation of an organic compound where at least one product of a reaction will contain atoms of oxygen. A common product is water.

CH₄ + 2O₂ —> CO₂ + 2H₂O

• Synthesis reactions

• combustion reactions

• single-displacement reactions

• decomposition reactions

A reaction in which one element takes the place of another element in a compound.

AX + B —> BX + A

• Combustion reaction

• double-displacement reaction

• synthesis

• single-replacement reaction