Balance chemical 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 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 does it mean to balance a chemical equation?

Back

Balancing a chemical equation means adjusting the coefficients of the reactants and products to ensure that the number of atoms for each element is the same on both sides.

Front

What is the law of conservation of mass?

Back

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

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 a coefficient in a chemical equation?

Back

A coefficient is a number placed in front of a chemical formula in an equation to indicate how many molecules or moles of that substance are involved.

Front

What is a subscript in a chemical formula?

Back

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

Front

Balance the equation: C + O2 -> CO2

Back

2C + O2 -> 2CO2

Front

What happens to atoms during a chemical reaction?

Back

During a chemical reaction, atoms get rearranged to form new substances, but they are neither created nor destroyed.