Pre AP - Classifying Reactions - Day 4

Front

What is a combustion reaction?

Back

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

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: Zn + H₂S ⟶ ZnS + H₂.

Front

What is a double replacement reaction?

Back

A double replacement reaction is a type of chemical reaction where two compounds exchange ions or bonds to form two new compounds. Example: AB + CD ⟶ AD + CB.

Front

What is a decomposition reaction?

Back

A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler products. Example: 2NaF ⟶ 2 Na + F₂.

Front

What is a precipitate?

Back

A precipitate is a solid that forms and settles out of a liquid mixture when two solutions are combined. Example: A solid forms when one liquid is poured into another.

Front

What is the general form of a synthesis reaction?

Back

A synthesis reaction is a type of chemical reaction where two or more reactants combine to form a single product. General form: A + B ⟶ AB.

Front

What is the general form of a decomposition reaction?

Back

A decomposition reaction is represented as AB ⟶ A + B, where a single compound breaks down into its components.

Front

What is the difference between a synthesis and a decomposition reaction?

Back

A synthesis reaction combines reactants to form a product, while a decomposition reaction breaks down a compound into simpler substances.

Front

What is an example of a combustion reaction?

Back

An example of a combustion reaction is: C₃H₈ + 5O₂ ⟶ 3CO₂ + 4H₂O.

Front

What is the role of oxygen in combustion reactions?

Back

Oxygen acts as a reactant that combines with fuel (like hydrocarbons) to produce energy, carbon dioxide, and water.