13. ACP REVIEW - 9A Balancing Chemical 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 a chemical reaction.

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 balance a chemical equation?

Back

To balance a chemical equation, adjust 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 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 does it mean if a chemical equation is already balanced?

Back

If a chemical equation is already balanced, it means that the number of atoms of each element is the same on both sides of the equation, and no further adjustments are needed.

Front

Balance the equation: H2 + O2 -> H2O

Back

2H2 + O2 -> 2H2O

Front

Balance the equation: C3H8 + O2 -> CO2 + H2O

Back

C3H8 + 5O2 -> 3CO2 + 4H2O

Front

What is the significance of balancing chemical equations?

Back

Balancing chemical equations is important because it reflects the actual proportions of reactants and products in a chemical reaction, ensuring accurate stoichiometric calculations.

Front

What is a reactant in a chemical reaction?

Back

A reactant is a substance that undergoes a change during a chemical reaction, typically found on the left side of a chemical equation.

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, typically found on the right side of a chemical equation.