Balancing Combustion Reactions

Dr. B guides viewers through balancing a combustion reaction. Starting with an introduction, he outlines the reactants and products, focusing on the number of carbons, hydrogens, and oxygens. He then demonstrates how to balance the carbons and hydrogens first, followed by recalculating and balancing the oxygens. The video concludes with a balanced equation and a thank you from Dr. B.

What are the initial numbers of carbon, hydrogen, and oxygen atoms on the reactant side of the combustion reaction?

• 12 carbons, 26 hydrogens, 1 oxygen

• 10 carbons, 22 hydrogens, 3 oxygens

• 9 carbons, 20 hydrogens, 4 oxygens

• 11 carbons, 24 hydrogens, 2 oxygens

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

• 12

• 10

• 9

• 11

What coefficient is used in front of hydrogen to balance it on both sides of the equation?

• 10

• 11

• 12

• 13

How many total oxygen atoms are needed on the product side after balancing?

• 36

• 32

• 34

• 30

What coefficient is placed in front of the oxygen molecule to balance the equation?

• 18

• 16

• 17

• 15