Balancing Combustion Reactions

Dr. B explains how to balance a combustion reaction for heptane. The video starts with an overview of the reactants and products, followed by a step-by-step process to balance carbon and hydrogen atoms. The oxygen atoms are balanced last, and the final coefficients for the balanced equation are provided.

What is the initial number of carbon atoms on the reactant side in the combustion reaction of heptane?

• 1

• 2

• 16

• 7

How many carbon atoms are present on the product side after balancing?

• 2

• 16

• 1

• 7

What coefficient is used in front of H2O to balance the hydrogen atoms?

• 16

• 7

• 2

• 8

How many hydrogen atoms are there on the reactant side before balancing?

• 16

• 2

• 7

• 8

What is the total number of oxygen atoms on the product side after balancing?

• 8

• 22

• 16

• 14

What coefficient is placed in front of O2 to balance the oxygen atoms?

• 11

• 2

• 7

• 8

What is the final coefficient for CO2 in the balanced equation?

• 7

• 11

• 8

• 1

What are the final coefficients for the balanced combustion reaction of heptane?

• 1, 11, 7, 8

• 7, 8, 11, 1

• 11, 7, 8, 1

• 8, 1, 11, 7