Types of Chemical Reactions Review

Front

What is a synthesis reaction?

Back

A synthesis reaction is a type of chemical reaction where two or more simple substances combine to form a more complex product. Example: 4Si + S8 → 2Si2S4.

Front

What is a decomposition reaction?

Back

A decomposition reaction is a type of chemical reaction where a compound breaks down into simpler substances. General formula: AB → A + B. Example: 2NO2 → N2 + 2O2.

Front

What is a single replacement reaction?

Back

A single replacement reaction is a type of chemical reaction where one element replaces another in a compound. Example: Fe + H2SO4 → Fe2(SO4)3 + H2.

Front

What is a combustion reaction?

Back

A combustion reaction is a type of chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of light or heat. Example: C4H12 + O2 → CO2 + H2O.

Front

What is the general formula for a synthesis reaction?

Back

The general formula for a synthesis reaction is A + B → AB.

Front

What is the general formula for a single replacement reaction?

Back

The general formula for a single replacement reaction is AB + C → AC + B.

Front

What is the general formula for a double replacement reaction?

Back

The general formula for a double replacement reaction is AB + CD → AC + BD.

Front

What distinguishes a combustion reaction from other types of reactions?

Back

A combustion reaction specifically involves oxygen and produces heat and light, typically resulting in carbon dioxide and water as products.

Front

What is the role of catalysts in chemical reactions?

Back

Catalysts are substances that speed up chemical reactions without being consumed in the process. They lower the activation energy required for the reaction.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.