Condiment, to chemists

• It's present in the sea's H2O
• Seawater component, to a chemist
• Salt, in chem lab
• Deicer formula
• Table salt, symbolically
• It dissolves in H20
• Chemist's seasoning
• Table salt, in chemistry class
• Salt's symbol

Wiktionary Word definitions in Wiktionary
n. sodium chloride#English; table salt.