Hydrogen is the most abundant element in the universe, so it's found in a lot of places! Here's a breakdown of some common examples:

Everyday Things:

* Water (H₂O): The most common and obvious example!

* Natural Gas (Methane, CH₄): Used for heating and cooking.

* Food: Hydrogen is present in carbohydrates, fats, and proteins.

* Cleaning Products: Many cleaning products contain water and other compounds with hydrogen.

* Pharmaceuticals: Many medicines and drugs contain hydrogen.

Beyond Everyday:

* Stars and Planets: The sun and other stars are primarily made of hydrogen. It's also a major component of gas giants like Jupiter and Saturn.

* Acids: Many acids contain hydrogen, like hydrochloric acid (HCl).

* Fuels: Hydrogen itself is a fuel, and is being researched as a potential alternative to fossil fuels.

* Batteries: Hydrogen is used in some types of batteries, like fuel cells.

* Rocket Fuel: Liquid hydrogen is a powerful rocket fuel.

Let me know if you'd like more detail on any of these examples!