Chemistry
Articles about matter, substances, reactions and chemical science.
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Soda
Soda: chemical meanings, products, and everyday uses
Sodium
Sodium (Na): properties, uses, occurrence and history
Sodium is a soft, highly reactive alkali metal (Na, atomic number 11) essential to industry, chemistry and biological systems. This entry summarizes its properties, common compound
Sodium acetate
Sodium acetate (CH3COONa)
Sodium amide
Sodium amide (NaNH2): properties, synthesis, uses and safety
Sodium arsenite
Sodium azide
Sodium bicarbonate
Sodium bicarbonate (baking soda): properties, uses, and safety
Sodium bismuthate
Sodium bisulfate
Sodium bromate
Sodium bromide
Sodium carbonate
Sodium chlorate
Sodium chlorite
Sodium chlorite: properties, uses, and safety overview
Sodium chromate
Sodium chromate (Na2CrO4): properties, production, uses and safety
Sodium dichromate
Sodium fluoride
Sodium hydroxide
Sodium hydroxide (caustic soda) — properties, uses, and safety
Sodium hypochlorite
Sodium hypophosphite
Sodium iodate
Sodium iodate (NaIO3)
Sodium iodide
Sodium iodide (NaI): properties, history, uses and safety
Sodium manganate
Sodium manganate (Na2MnO4)
Sodium monofluoroacetate
Sodium nitrate
Sodium nitrite
Sodium periodate
Sodium permanganate
Sodium phosphate
Sodium phosphide
Sodium phosphite
Sodium selenate
Sodium selenide
Sodium selenide (Na2Se): properties, preparation, uses and safety
Sodium selenite
Sodium sulfate
Sodium sulfate (Glauber's salt): properties, production, and uses
Sodium sulfite
Sodium telluride
Sodium telluride (Na2Te)
Sodium tellurite
Soft water
Sol (colloid)
Solder
Solder — low‑melting metal alloy used to join materials
Solid
Solid (state of matter)
A solid is a state of matter with particles held in fixed positions, giving definite shape and volume. This article explains structure, types, phase changes, examples and why solid
Solid-state chemistry
Solid-state chemistry — synthesis, structure, and properties of solids
Solubility
Solubility: how substances dissolve and mix in liquids
Solution (chemistry)
Solution (chemistry): definition, types, properties and applications
Solvation
Solvation: interactions between solvents and solutes