Chemical Reactions/ Conservation of Mass

Front

What is a chemical reaction?

Back

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

Front

What does the law of conservation of mass state?

Back

In a chemical reaction, the total mass of the reactants equals the total mass of the products.

Front

What are reactants in a chemical equation?

Back

Substances that undergo a chemical change during a reaction, found on the left side of the equation.

Front

What are products in a chemical equation?

Back

Substances formed as a result of a chemical reaction, found on the right side of the equation.

Front

What is a balanced chemical equation?

Back

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

Front

What is an unbalanced chemical equation?

Back

An equation where the number of atoms for each element is not the same on both sides, violating the law of conservation of mass.

Front

What is a coefficient in a chemical equation?

Back

A number placed before a chemical formula to indicate how many molecules or moles of that substance are involved.

Front

What is a subscript in a chemical formula?

Back

A small number written after an element symbol that indicates the number of atoms of that element in a molecule.

Front

How do you determine if a chemical equation is balanced?

Back

Count the number of atoms of each element on both sides of the equation and compare them.

Front

What is the significance of the arrow in a chemical equation?

Back

It indicates the direction of the reaction, separating reactants from products.