Balancing Chemical Equations

This video tutorial demonstrates how to balance the chemical equation CS2 + O2 yields CO2 + SO2. It begins by counting the atoms on both sides of the equation, then proceeds to balance the sulfur atoms by adjusting the coefficients. Next, the oxygen atoms are balanced by further adjusting the coefficients. The video concludes with a summary of the balanced equation, emphasizing the importance of ensuring equal numbers of each type of atom on both sides of the equation.

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

• Three

• One

• Four

• Two

How many oxygen atoms are there on the product side before balancing?

• Two

• Three

• Six

• Four

What coefficient is placed in front of SO2 to balance the sulfur atoms?

• 4

• 3

• 1

• 2

After balancing sulfur, how many total oxygen atoms are on the product side?

• Four

• Five

• Seven

• Six

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

• 4

• 1

• 2

• 3

What is the final balanced equation for the reaction of CS2 and O2?

• CS2 + O2 → CO2 + SO2

• CS2 + 2O2 → CO2 + 2SO2

• CS2 + 4O2 → CO2 + 2SO2

• CS2 + 3O2 → CO2 + 2SO2