Law Of Constant Composition

The video tutorial explains chemical compounds, using water as an example to illustrate the law of constant composition. It details how to calculate the mass percentage of elements in compounds like water and hydrogen peroxide. The tutorial also covers how elements combine based on their positions in the periodic table and the bonds they form, using sodium chloride as an example. It concludes with a discussion on the law of constant composition, its limitations, and the concept of non-stoichiometric compounds like iron selenide.

How does the position of elements in the periodic table affect their ability to combine?

What are non-stoichiometric compounds, and how do they differ from typical compounds?