Balancing Chemical Equations

The video tutorial explains how to balance the chemical equation Na + O2 = Na2O. It begins by identifying the number of sodium and oxygen atoms on both sides of the equation. The instructor suggests balancing the oxygen atoms first, as this will affect the sodium atoms. By placing a coefficient of 2 in front of Na2O, the oxygen atoms are balanced. Then, a coefficient of 4 is added in front of Na to balance the sodium atoms. The tutorial concludes with a reminder to balance oxygen first to simplify the process.

What is the initial number of sodium atoms on the reactant side?

• 1

• 2

• 3

• 4

How many oxygen atoms are there on the product side initially?

• 4

• 3

• 2

• 1

What is the first step taken to balance the equation?

• Fixing the sodium atoms

• Fixing the oxygen atoms

• Adding a coefficient to Na2O

• Adding a coefficient to Na

What coefficient is placed in front of Na2O to balance the oxygen atoms?

• 1

• 2

• 4

• 3

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

• 2

• 4

• 5

• 3

What is the final coefficient placed in front of sodium (Na) to balance the equation?

• 1

• 2

• 3

• 4