Balancing Chemical Equations Practice

The video tutorial explains how to balance the chemical equation for sodium oxide (Na2O) reacting with hydrochloric acid (HCl). It begins by counting the atoms on each side of the equation, then proceeds to balance the sodium and chlorine atoms by adjusting coefficients. Finally, it balances the hydrogen atoms, resulting in a complete and balanced chemical equation. The tutorial concludes with a summary of the balanced equation.

What is the initial count of sodium (Na) atoms on the reactant side?

• 4

• 1

• 2

• 3

What coefficient is placed in front of NaCl to balance sodium atoms?

• 4

• 3

• 2

• 1

How many chlorine (Cl) atoms are there on the product side after balancing sodium?

• 3

• 4

• 2

• 1

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

• 1

• 2

• 3

• 4

After balancing, how many hydrogen (H) atoms are there on each side of the equation?

• 3

• 2

• 4

• 1

What is the final count of chlorine (Cl) atoms on each side of the balanced equation?

• 4

• 3

• 2

• 1

What is the balanced chemical equation for sodium oxide reacting with hydrochloric acid?

• Na2O + 2HCl -> NaCl + 2H2O

• Na2O + HCl -> NaCl + H2O

• Na2O + 2HCl -> 2NaCl + H2O

• Na2O + HCl -> 2NaCl + H2O