Balancing Chemical Reactions and Products

The video tutorial demonstrates how to balance a chemical equation involving sodium peroxide and solid sodium. It begins by introducing the reactants and products, then proceeds to count the sodium and oxygen atoms on both sides of the equation. The instructor adjusts coefficients to ensure the equation is balanced, explaining each step clearly. The video concludes with a balanced equation for Na2O2 plus Na.

What is the product formed when sodium peroxide reacts with solid sodium?

• Sodium chloride

• Sodium oxide

• Sodium hydroxide

• Sodium carbonate

How many sodium atoms are initially present on the reactant side of the equation?

• One

• Two

• Three

• Four

What is the first step taken to balance the equation?

• Removing products

• Adding more reactants

• Balancing oxygen atoms

• Balancing sodium atoms

After balancing the oxygen atoms, how many sodium atoms are present on the product side?

• Two

• Three

• Five

• Four

What adjustment is made to balance the sodium atoms after balancing the oxygen?

• Adding a coefficient of 3 to sodium

• Adding a coefficient of 2 to sodium

• Adding a coefficient of 4 to sodium

• Adding a coefficient of 1 to sodium

What is the final balanced equation for the reaction?

• Na2O2 + 2Na → 2Na2O

• Na2O2 + Na → Na2O

• 2Na2O2 + Na → Na2O

• Na2O2 + 3Na → 2Na2O

Who is the presenter of the video?

• Dr. A

• Dr. B

• Dr. D

• Dr. C