5 Types of Reactions Flashcard

Front

What is a Decomposition Reaction?

Back

A chemical reaction where a single compound breaks down into two or more simpler products. Example: 2H₂O → 2H₂ + O₂.

Front

What is a Combination/Synthesis Reaction?

Back

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

Front

What is a Single Replacement Reaction?

Back

A chemical reaction where one element replaces another in a compound. Example: Zn + HCl → ZnCl + H.

Front

What is a Double Replacement Reaction?

Back

A chemical reaction where two compounds exchange ions to form two new compounds. Example: KOH + H₂PO₄ → K₃PO₄ + H₂O.

Front

What is the Law of Conservation of Mass?

Back

In a chemical reaction, mass is neither created nor destroyed; the mass of reactants equals the mass of products.

Front

What are coefficients in a chemical equation?

Back

Numbers placed before compounds in a chemical equation to indicate the number of molecules or moles of each substance.

Front

How do you balance a chemical equation?

Back

By adjusting the coefficients to ensure the number of atoms of each element is the same on both sides of the equation.

Front

What is the general form of a chemical reaction?

Back

Reactants → Products.

Front

What is an example of a combustion reaction?

Back

A reaction where a substance combines with oxygen, releasing energy. Example: CH₄ + 2O₂ → CO₂ + 2H₂O.

Front

What is the difference between reactants and products?

Back

Reactants are the starting materials in a chemical reaction, while products are the substances formed as a result of the reaction.