Balancing Chemical Equations

The video tutorial demonstrates how to balance the chemical equation CH4 + S2. It begins by counting the atoms on both sides of the equation, identifying the need to balance hydrogen and sulfur atoms. The instructor suggests placing coefficients to achieve balance, explaining each step clearly. The video concludes with the final balanced equation and a brief summary by Dr. B.

What is the initial number of hydrogen atoms on the reactant side of the equation?

• Four

• One

• Two

• Three

How many sulfur atoms are present on the product side before balancing?

• Three

• Four

• Two

• One

What coefficient is added in front of H2S to balance the hydrogen atoms?

• 1

• 2

• 3

• 4

Why is it important to have an even number of sulfur atoms on one side of the equation?

• To balance the carbon atoms

• To ensure the equation is balanced

• To simplify the equation

• To balance the oxygen atoms

What coefficient is placed in front of S2 to balance the sulfur atoms?

• 1

• 4

• 2

• 3

What is the final balanced equation for the reaction between CH4 and S2?

• CH4 + 2S2 → CS2 + 2H2S

• 2CH4 + S2 → 2CS2 + 4H2S

• CH4 + S2 → CS2 + H2S

• CH4 + 2S2 → 2CS2 + 2H2S