what compounds are present on Europa?

Europa, one of Jupiter's moons, is primarily composed of water ice and has a subsurface ocean beneath its icy crust. The moon's surface shows signs of various complex organic compounds, such as carbonates and possibly sulfuric compounds. Additionally, there are indications of salts, which may include magnesium sulfate and sodium chloride. The presence of these compounds, along with the potential for liquid water, makes Europa a prime candidate for astrobiological studies.