Types of Chemical Reactions

Front

What is a Double Replacement Reaction?

Back

A type of chemical reaction where two ionic compounds exchange ions to form two new compounds. Example: AB(aq) + CD(aq) → AD + BC.

Front

What is a Combustion Reaction?

Back

A chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of light and heat. Example: CH₄ + 2O₂ → CO₂ + 2H₂O.

Front

What is a Decomposition Reaction?

Back

A reaction where a single compound breaks down into two or more simpler products, often requiring heat or energy. Example: 2H₂O → 2H₂ + O₂.

Front

What is a Composition (Synthesis) Reaction?

Back

A reaction where two or more substances combine to form a single compound. Example: 2H₂ + O₂ → 2H₂O.

Front

What is a Single Replacement Reaction?

Back

A reaction where one element replaces another in a compound. Example: A + BC → AC + B.

Front

What is the general form of a Double Replacement Reaction?

Back

AB + CD → AD + CB, where A and C are cations and B and D are anions.

Front

What is an Endothermic Reaction?

Back

A reaction that absorbs heat from its surroundings. Example: Photosynthesis is an endothermic reaction.

Front

What is an Exothermic Reaction?

Back

A reaction that releases heat to its surroundings. Example: Combustion of fuels.

Front

What is the role of heat in a Decomposition Reaction?

Back

Heat is often required to break down the compound into simpler substances.

Front

What is the difference between a Synthesis and a Decomposition Reaction?

Back

Synthesis combines multiple reactants to form one product, while decomposition breaks down one reactant into multiple products.