Balancing Equations

Front

What is a balanced chemical equation?

Back

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

Front

What does the Law of Conservation of Mass state?

Back

The Law of Conservation of Mass states that matter cannot be created nor destroyed in a chemical reaction.

Front

How do you balance a chemical equation?

Back

To balance a chemical equation, adjust the coefficients in front of the compounds to ensure that the number of atoms for each element is the same on both sides.

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 a reaction, helping to balance the equation.

Front

What is a reactant in a chemical reaction?

Back

A reactant is a substance that undergoes a change during a chemical reaction.

Front

What is a product in a chemical reaction?

Back

A product is a substance that is formed as a result of a chemical reaction.

Front

If you start with 100 grams of reactants, how many grams of products will you have?

Back

100 grams, according to the Law of Conservation of Mass.

Front

What does it mean to say an equation is 'balanced'?

Back

It means that the number of atoms of each element is the same on both sides of the equation.

Front

What is the balanced equation for the reaction of potassium and boron oxide?

Back

6K + B2O3 -> 3K2O + 2B.

Front

What is the balanced equation for the reaction of sodium and oxygen?

Back

2Na + O2 -> Na2O2.