Sulphur, table salt and copper sulphate

Credit: MARTYN F. CHILLMAID/SCIENCE PHOTO LIBRARY

Caption: Sulphur, table salt and copper sulphate. Sulphur (yellow, S) is a chemical element that forms a yellow crystalline solid. Table salt (white) is a chemical compound of sodium and chloride ions, forming the colourless crystalline solid sodium chloride (NaCl). Copper (II) sulphate (blue, CuSO4) is a chemical compound of copper and sulphate ions. The copper is in its +2 (II) oxidation state. The blue colour is due to the formation of a hydrated complex of the copper ion.

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Keywords: blue, chemical, chemicals, chemistry, chloride, copper sulphate, element, lab, laboratory, salt, salts, sodium chloride, sulfur, sulphate, sulphur, table salt, three, trio, white, yellow

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