Beginner in Organic Chemistry

Molecules are what you get when atoms decide that being lonely and only one isn't cool. That's when, instead of floating around solo, atoms reach out, share their electrons, and lock together into a brand-new "molecule" with its own shape, smell, taste, and personality.

So, in chemistry, a molecule is a group of two or more atoms held together by covalent bonds, behaving as a single unit of a substance.

Water, sugar, oxygen, the carbon dioxide fizzing in your soda, they are all molecules, or you can say, just atoms holding hands.

In chemistry, intermolecular interactions are molecular interactions between neighbouring molecules, governed by attractive and repulsive forces. 

Milk contains four major types of molecules: water, fats, carbohydrates, and proteins. These molecules look inert and motionless when you see a glass of milk, but their dynamic nature can be witnessed the moment you introduce a foreign agent, a few drops of dishwashing soap.

An acid is like a sour superhero, let’s call him Acidus, that loves to give away tiny pieces called protons (or H⁺ pieces). The stronger he is, the more protons he can donate as H⁺. This increased concentration of H⁺ ions in water makes a solution acidic.

So, in Chemistry, an acid is a substance that increases the concentration of hydrogen ions (H⁺) in water.

Atoms are so tiny that even a single drop of water contains more atoms than there are stars in the entire universe. And yet, for thousands of years, no one had ever seen one. So how do we know they exist? Their pursuit was one of the coolest detective stories in science. Scientists figured out that atoms must be real because they could see what atoms were doing even when they couldn't see the atoms themselves. Mr.