Balancing Chemical Equations

Front

What are the larger numbers that you CAN CHANGE in a chemical equation?

Back

Coefficient

Front

What is a chemical equation?

Back

A representation of a chemical reaction.

Front

What does it mean for a chemical equation to be balanced?

Back

A balanced chemical equation has the same number of each type of atom on both sides of the equation.

Front

How do you determine if a chemical equation is balanced?

Back

By counting the number of atoms of each element on both sides of the equation and ensuring they are equal.

Front

What coefficient should be used to balance the equation N2 + O2 --> _ NO?

Back

2

Front

Which of the following equations is balanced? 2Na + 2H2O --> 2NaOH + H2

Back

2Na + 2H2O --> 2NaOH + H2 is balanced.

Front

What is the purpose of coefficients in a chemical equation?

Back

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

Front

What is the law of conservation of mass in relation to chemical equations?

Back

The law states that mass is neither created nor destroyed in a chemical reaction, so the total mass of reactants must equal the total mass of products.

Front

What is the difference between reactants and products in a chemical equation?

Back

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

Front

What does it mean if a chemical equation is unbalanced?

Back

An unbalanced equation does not have the same number of each type of atom on both sides, indicating that the reaction is not accurately represented.