Balancing Equations Practice

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction. The total mass of reactants equals the total mass of products.

Front

What are reactants in a chemical equation?

Back

Reactants are the substances that undergo a chemical change in a reaction, found on the left side of the equation.

Front

What are products in a chemical equation?

Back

Products are the substances formed as a result of a chemical reaction, found on the right side of the equation.

Front

What is a coefficient in a chemical equation?

Back

A coefficient is a number placed in front of a compound in a chemical equation to indicate how many molecules or moles of that compound are involved in the reaction.

Front

What is a subscript in a chemical formula?

Back

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

Front

How do you balance a chemical equation?

Back

To balance a chemical equation, adjust the coefficients of the reactants and products to ensure that the number of atoms of each element is the same on both sides of the equation.

Front

What is the purpose of balancing chemical equations?

Back

The purpose of balancing chemical equations is to satisfy the law of conservation of mass, ensuring that the same number of each type of atom is present before and after the reaction.

Front

What does the arrow in a chemical equation represent?

Back

The arrow in a chemical equation represents the direction of the reaction, indicating that reactants are transformed into products.

Front

What is the difference between a balanced and unbalanced equation?

Back

A balanced equation has equal numbers of each type of atom on both sides, while an unbalanced equation does not.

Front

What is the significance of the coefficients in a balanced equation?

Back

Coefficients indicate the relative amounts of reactants and products involved in the reaction, allowing for stoichiometric calculations.