Balancing Chemical Equations Practice

This video tutorial demonstrates how to balance the chemical equation for ammonia (NH3) reacting with copper(II) oxide (CuO). The instructor begins by counting the atoms on both sides of the equation, then proceeds to balance the nitrogen, hydrogen, oxygen, and copper atoms step-by-step. The process involves adjusting coefficients to ensure the same number of each type of atom appears on both sides of the equation. The video concludes with the final balanced equation and a brief summary.

What is the initial count of nitrogen atoms on the reactant side?

• 3

• 4

• 2

• 1

How many nitrogen atoms are there on the product side before balancing?

• 3

• 2

• 1

• 4

What coefficient is placed in front of NH3 to balance the nitrogen atoms?

• 4

• 1

• 3

• 2

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

• 6

• 5

• 4

• 3

What coefficient is used in front of H2O to balance the hydrogen atoms?

• 3

• 2

• 4

• 1

How many oxygen atoms are on the product side after balancing hydrogen?

• 1

• 2

• 3

• 4

What is the final coefficient for CuO to balance the equation?

• 1

• 2

• 3

• 4