Balancing Chemical Equations

The video tutorial demonstrates how to balance the chemical equation Cu + S8 yields Cu2S. It begins by introducing the equation and explaining the presence of octa sulfur. The instructor then guides viewers through the process of balancing the equation by adjusting coefficients to ensure equal numbers of each type of atom on both sides. The video concludes with a confirmation of the balanced equation and a thank you from Dr. B.

What is the chemical formula for octa sulfur used in the equation?

• S4

• S8

• S2

• S6

How many copper atoms are present in the reactants of the given equation?

• Four

• Two

• Eight

• One

In the products of the equation, how many sulfur atoms are there?

• Two

• Four

• One

• Eight

What coefficient is used to balance the copper atoms in the equation?

• 24

• 8

• 12

• 16

What is the final balanced equation for copper and octa sulfur?

• 8Cu + S8 → 8Cu2S

• Cu + S8 → Cu2S

• 16Cu + S8 → 8Cu2S

• Cu + 8S → Cu2S