1. Water (H₂O): This is a very common compound made of two hydrogen atoms and one oxygen atom. It's essential for life.

2. Sodium Chloride (NaCl): This is table salt, a compound of sodium and chlorine.

3. Glucose (C₆H₁₂O₆): This is a sugar that is a primary source of energy for living things. It's made of carbon, hydrogen, and oxygen.

Let me know if you'd like to know more about these compounds or want to explore other examples!