Reactions Unit Review 2022-2023

Front

What is a Decomposition Reaction?

Back

A reaction where a single compound breaks down into two or more simpler products. Example: 2H₂O₂ → 2H₂O + O₂.

Front

What is a Single Replacement Reaction?

Back

A reaction where one element replaces another in a compound. Example: Fe + CuSO₄ → Cu + FeSO₄.

Front

What is a Precipitate?

Back

A solid substance formed from a solution during a chemical reaction.

Front

How do you balance the equation Al + O₂ → Al₂O₃?

Back

The balanced equation is 4Al + 3O₂ → 2Al₂O₃.

Front

What is a Balanced Chemical Equation?

Back

An equation where the number of atoms for each element is the same on both sides.

Front

What is a Synthesis Reaction?

Back

A reaction where two or more reactants combine to form a single product. Example: A + B → AB.

Front

What is a Combustion Reaction?

Back

A reaction that involves the burning of a substance in the presence of oxygen, producing heat and light. Example: CH₄ + 2O₂ → CO₂ + 2H₂O.

Front

What are Coefficients in a Chemical Equation?

Back

Numbers placed before compounds in a chemical equation to indicate the number of molecules involved.

Front

What is the Law of Conservation of Mass?

Back

In a chemical reaction, mass is neither created nor destroyed; it is conserved.

Front

What is a Double Replacement Reaction?

Back

A reaction where two compounds exchange ions to form two new compounds. Example: AB + CD → AD + CB.