Balancing Combustion Reactions

The video tutorial explains how to balance the chemical equation C6H10 + O2. It begins by counting the atoms on both sides of the equation, focusing on carbon, hydrogen, and oxygen. The tutorial suggests balancing carbon and hydrogen first, leaving oxygen for last. It introduces the use of fractions to balance oxygen atoms and demonstrates how to adjust coefficients to achieve a balanced equation. The tutorial concludes with a method to eliminate fractions by multiplying all coefficients, providing an alternative set of coefficients for the balanced equation.

What is the first step in balancing the equation C6H10 + O2?

• Count the carbon and hydrogen atoms on the reactant side.

• Ignore the oxygen atoms initially.

• Add coefficients to balance the equation.

• Count the oxygen atoms on the product side.

How do you balance the carbon atoms in the equation?

• Add a coefficient of 5 in front of H2O.

• Add a coefficient of 10 in front of H2O.

• Add a coefficient of 6 in front of CO2.

• Add a coefficient of 2 in front of O2.

What is the result of balancing hydrogen atoms in the equation?

• 10 hydrogen atoms on both sides.

• 12 hydrogen atoms on both sides.

• 8 hydrogen atoms on both sides.

• 6 hydrogen atoms on both sides.

What fractional coefficient is used to balance the oxygen atoms?

• 17/2

• 15/2

• 19/2

• 13/2

Why is a fractional coefficient used in balancing the equation?

• To balance the oxygen atoms.

• To balance the hydrogen atoms.

• To balance the entire equation.

• To balance the carbon atoms.

What is the final step to remove fractions from the balanced equation?

• Multiply all coefficients by two.

• Subtract two from all coefficients.

• Add two to all coefficients.

• Divide all coefficients by two.

What is the final ratio of coefficients after removing fractions?

• 1, 17, 6, 5

• 2, 17, 12, 10

• 3, 18, 9, 6

• 4, 16, 8, 4

What is a good strategy when balancing combustion reactions?

• Leave hydrogen atoms until last.

• Balance oxygen atoms first.

• Balance hydrogen atoms first.

• Leave oxygen atoms until last.

What is the correct order of balancing atoms in the given equation?

• Carbon, Oxygen, Hydrogen

• Oxygen, Carbon, Hydrogen

• Carbon, Hydrogen, Oxygen

• Hydrogen, Oxygen, Carbon

What is the main challenge when balancing the given equation?

• Balancing carbon atoms.

• Balancing oxygen atoms.

• Balancing nitrogen atoms.

• Balancing hydrogen atoms.