Balancing and Reaction Types

Front

What is a Single Replacement Reaction?

Back

A reaction where one element replaces another in a compound. Example: ZnCl2 + Mg -> Zn + MgCl2.

Front

What is a Synthesis Reaction?

Back

A reaction where two or more substances combine to form a single product. Example: K + F2 -> KF.

Front

What is a Balanced Chemical Equation?

Back

An equation where the number of atoms for each element is the same on both sides. Example: 2Na + 2H2O -> 2NaOH + H2.

Front

How many HCl are needed to react with Mg to produce MgCl2 and H2?

Back

2 HCl are needed. Equation: Mg + 2HCl -> MgCl2 + H2.

Front

What is a Combustion Reaction?

Back

A reaction that involves the burning of a substance in the presence of oxygen, producing CO2 and H2O. Example: C2H6 + O2 -> CO2 + H2O.

Front

What is a Double Replacement Reaction?

Back

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

Front

What is the Law of Conservation of Mass?

Back

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

Front

What is the role of coefficients in a chemical equation?

Back

Coefficients indicate the number of molecules or moles of a substance involved in a reaction.

Front

What is the difference between reactants and products?

Back

Reactants are substances that undergo a chemical change, while products are the substances formed as a result of the reaction.