Sodium Peroxide Formation and Balancing

The video tutorial explains the process of forming sodium peroxide through a two-step reaction. Initially, sodium metal reacts with oxygen to form Na2O, which then absorbs more oxygen at around 300 degrees to form sodium peroxide. The tutorial guides viewers through balancing the chemical equation, ensuring the correct number of sodium and oxygen atoms. The instructor emphasizes the importance of adjusting coefficients to achieve a balanced equation, concluding with a balanced equation for Na2O plus O2.

What is the first step in forming sodium peroxide?

• Reacting sodium metal with water

• Mixing sodium metal with hydrogen

• Reacting sodium metal with oxygen

• Heating sodium metal

At what temperature does Na2O absorb more oxygen to form sodium peroxide?

• 100 degrees

• 200 degrees

• 300 degrees

• 400 degrees

How many sodium atoms are present initially in the equation?

• One

• Two

• Three

• Four

What is the purpose of placing a '2' in front of Na2O during balancing?

• To decrease the number of sodium atoms

• To increase the number of oxygen atoms

• To change the compound

• To make the number of atoms even

How many oxygen atoms are there after balancing the equation?

• Five

• Three

• Four

• Two

What is the final number of sodium atoms on each side of the balanced equation?

• Five

• Four

• Three

• Two

What is the balanced chemical equation for the formation of sodium peroxide?

• 2Na2O + O2 -> 2Na2O2

• Na2O + O2 -> Na2O2

• 2Na + O2 -> Na2O2

• Na + O2 -> Na2O2

Who is the narrator of the video?

• Dr. B

• Dr. C

• Dr. D

• Dr. A