Questions: Stoichiometry Writing a chemical equation from a molecular movie The movie below shows some molecules in a tiny sample of a mixture of gases. Drag the slider to see how the molecules move. Does a chemical reaction happen during this movie? O yes O no If a chemical reaction does happen, write a balanced chemical equation for it.

Solution Steps

The molecules are moving randomly and colliding with each other and the walls of the container. Some of the molecules represented by two black spheres bonded together collide with the molecules represented by two white spheres bonded together.

Upon collision between a diatomic black molecule and a diatomic white molecule, they rearrange to form two new molecules, each consisting of one black and one white sphere bonded together. This represents a change in molecular composition.

Since the molecular composition changes after the collision, a chemical reaction occurs. The two diatomic reactants form two diatomic products where the atoms are different than the original molecules.

Final Answer