Balancing Equations

Front

What is a chemical equation?

Back

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products along with their quantities.

Front

What does it mean to balance a chemical equation?

Back

Balancing a chemical equation means ensuring that the number of atoms of each element is the same on both sides of the equation.

Front

What are coefficients in a chemical equation?

Back

Coefficients are numbers placed in front of compounds in a chemical equation to indicate the number of molecules or moles of that substance.

Front

How do you determine if a chemical equation is balanced?

Back

A chemical equation is balanced if the number of atoms of each element is equal on both sides of the equation.

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

Balance the equation: C + O₂ → CO₂

Back

1C + 1O₂ → 1CO₂ (Balanced)

Front

Balance the equation: H₂ + O₂ → H₂O

Back

2H₂ + 1O₂ → 2H₂O (Balanced)

Front

What is an unbalanced equation?

Back

An unbalanced equation is one where the number of atoms of each element is not equal on both sides of the equation.

Front

Is the equation: 2Na + Cl₂ → 2NaCl balanced?

Back

Yes, it is balanced.

Front

Balance the equation: Fe + O₂ → Fe₂O₃

Back

4Fe + 3O₂ → 2Fe₂O₃ (Balanced)