Reaction Types and Balancing

Front

What is a chemical reaction?

Back

A process in which substances (reactants) are transformed into different substances (products) through the breaking and forming of chemical bonds.

Front

What are the main types of chemical reactions?

Back

1. Synthesis 2. Decomposition 3. Single Displacement 4. Double Displacement 5. Combustion

Front

What is a balanced chemical equation?

Back

An equation that has the same number of each type of atom on both sides, indicating that mass is conserved during the reaction.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, matter is neither created nor destroyed; the total mass of reactants equals the total 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 that substance.

Front

What is the difference between coefficients and subscripts?

Back

Coefficients indicate the number of molecules, while subscripts indicate the number of atoms in a molecule.

Front

How do you balance a chemical equation?

Back

By adjusting the coefficients of the reactants and products to ensure the same number of each type of atom on both sides.

Front

What type of reaction is represented by the equation: C2H4 + 3 O2 → 2 CO2 + 2 H2O?

Back

Combustion reaction.

Front

What is a synthesis reaction?

Back

A type of reaction where two or more reactants combine to form a single product.

Front

What is a decomposition reaction?

Back

A type of reaction where a single compound breaks down into two or more simpler products.