Chemical reactions

Front

What is a chemical reaction?

Back

A process where reactants transform into products, involving the breaking and forming of bonds.

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.

Front

What are reactants?

Back

The starting substances in a chemical reaction that undergo change.

Front

What are products?

Back

The substances formed as a result of a chemical reaction.

Front

What does the coefficient in a chemical equation represent?

Back

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

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction; it is conserved.

Front

What is the significance of the subscripts in a chemical formula?

Back

They indicate the number of atoms of each element in a molecule.

Front

What is the chemical formula for glucose?

Back

C6H12O6.

Front

How do you determine the number of atoms in a molecule from its chemical formula?

Back

By adding the subscripts of each element in the formula.

Front

What is the role of oxygen in combustion reactions?

Back

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