Balancing Chemical Equations Practice

The video tutorial explains how to balance a chemical equation involving sodium and sodium hydroxide. It begins by counting the atoms on each side of the equation and identifies the need to balance hydrogen atoms first. The instructor then adjusts coefficients to balance the oxygen and sodium atoms, ensuring the equation is balanced. The tutorial concludes with a review of the balanced equation, emphasizing the importance of balancing all elements involved.

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

• One

• Two

• Four

• Three

How many hydrogen atoms are present on the product side before balancing?

• Three

• Four

• One

• Two

What coefficient is placed in front of sodium hydroxide to balance the hydrogen atoms?

• 4

• 3

• 2

• 1

After balancing hydrogen, how many oxygen atoms are there on the reactant side?

• Four

• One

• Two

• Three

What is the total number of sodium atoms on the reactant side after updating the sodium count?

• Two

• Three

• Five

• Four

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

• 3

• 2

• 1

• 4

How many sodium atoms are there on the product side after balancing?

• Two

• Three

• Four

• Five

What is the final coefficient placed in front of sodium on the reactant side to balance the equation?

• 1

• 2

• 3

• 4

What is the balanced chemical equation for the reaction between sodium and sodium hydroxide?

• 4Na + 2NaOH → 2Na2O + H2

• 2Na + 2NaOH → Na2O + H2

• 2Na + 2NaOH → 2Na2O + H2

• Na + NaOH → Na2O + H2