Balancing Chemical Reactions

The video tutorial demonstrates how to balance a chemical equation involving Sb2S3 and HCl. It begins by counting the atoms on each side of the equation, then proceeds to balance antimony, chlorine, hydrogen, and sulfur atoms step-by-step. The tutorial concludes with a balanced equation and credits.

What is the initial number of antimony (Sb) atoms on the reactant side of the equation?

• 1

• 2

• 3

• 4

How many chlorine (Cl) atoms are present on the product side before balancing?

• 2

• 1

• 6

• 3

What coefficient is placed in front of SbCl3 to balance the antimony atoms?

• 1

• 4

• 2

• 3

What is the new coefficient for HCl to balance the chlorine atoms?

• 8

• 2

• 4

• 6

How many hydrogen (H) atoms are there after balancing the chlorines?

• 8

• 6

• 4

• 2

What coefficient is used in front of H2S to balance the sulfur atoms?

• 3

• 4

• 2

• 1

What is the final balanced equation for the reaction?

• Sb2S3 + 6HCl -> 2SbCl3 + 3H2S

• Sb2S3 + 3HCl -> SbCl3 + 3H2S

• Sb2S3 + 6HCl -> SbCl3 + 3H2S

• Sb2S3 + 6HCl -> 2SbCl3 + H2S