An Arrhenius acid is a substance that, when dissolved in water, releases hydrogen ions (H+). Some examples of Arrhenius acids include:

* Hydrochloric acid (HCl)

* Nitric acid (HNO3)

* Sulfuric acid (H2SO4)

* Acetic acid (CH3COOH)

* Citric acid (C6H8O7)

These acids all release H+ ions when dissolved in water, making them acidic.