Balancing Equations

Front

What is a balanced chemical equation?

Back

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

Front

What does the coefficient in a chemical equation represent?

Back

The coefficient indicates the number of molecules or moles of a substance involved in the reaction.

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. If they are equal, the equation is balanced.

Front

What is the first step in balancing a chemical equation?

Back

Identify the number of atoms of each element in the reactants and products.

Front

What is the law of conservation of mass?

Back

The law states that mass cannot be created or destroyed in a chemical reaction; it can only change forms.

Front

Balance the equation: __C + __O₂ → __CO₂.

Back

1, 1, 1

Front

Balance the equation: __Fe + __O₂ → __Fe₂O₃.

Back

4, 3, 2

Front

What is the significance of balancing chemical equations?

Back

Balancing chemical equations ensures that the same amount of each element is present before and after the reaction, reflecting the conservation of mass.

Front

Balance the equation: __H₂ + __O₂ → __H₂O.

Back

2, 1, 2

Front

What is a skeleton equation?

Back

A skeleton equation is a chemical equation that shows the reactants and products but not the coefficients needed to balance it.