There is typically one snake in one snake egg.
While snakes can lay clutches containing many eggs (ranging from 20 to 100 depending on the species, and sometimes even more), each egg generally contains only a single developing snake embryo. The reference provided mentions clutch sizes and the breeding season, but it implicitly confirms that each egg yields one snake.
Think of it like chicken eggs – one egg usually contains one chick. The same principle applies to snakes.
