Chemistry
Articles about matter, substances, reactions and chemical science.
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Water (molecule)
Water (molecule): properties, behavior, and importance
Wax
Weak acid
Weak acid: properties, dissociation, examples and applications
Wet chemistry
Wet chemistry (bench chemistry): techniques, equipment and applications
White asbestos
Whitewash
Wiswesser Line Notation
Wolff–Kishner reduction
Woodward–Hoffmann rules
Woodward's rules
Woodward’s rules for predicting UV–Vis absorption in conjugated organic molecules
Xanthan gum
Xanthan gum: microbial polysaccharide used as thickener and stabilizer
Xanthophyll
Xenon
Xenon — properties, history, compounds and applications
Xenon (Xe) is a dense, colorless noble gas used in lighting, medicine, and spacecraft propulsion; notable for chemical inertness but able to form compounds under extreme conditions
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Yellowcake
Yellowcake (uranium concentrate)
Yellowcake is a concentrated uranium powder produced from mined ore and used as the feedstock for nuclear fuel and other industrial processes; it is not directly weapons-ready.
Yield (chemistry)
Yield (chemistry): types, calculation, and significance
Ytterbium
Ytterbium is a soft, silvery lanthanide metal (symbol Yb, atomic number 70) used in specialty alloys, lasers and precision instruments; it occurs in rare-earth minerals and as seve
Yttrium
Yttrium: properties, occurrence, applications and notable facts
Zinc
Zinc aluminium
Zinc–aluminium alloys (ZA)
Zinc antimonide
Zinc antimonide (ZnSb): properties, structure, uses and safety
Zinc arsenide
Zinc bromide
Zinc bromide (ZnBr2)
Zinc chloride
Zinc chloride (ZnCl2): properties, production, uses, and safety
Zinc fluoride
Zinc hydroxide
Zinc hydroxide (Zn(OH)2): properties, preparation, and uses
Zinc iodide
Zinc iodide (ZnI2): properties, structure, uses and safety
Zinc nitrate
Zinc oxide
Zinc oxide (ZnO)
Zinc phosphate
Zinc phosphate (Zn3(PO4)2)
Zinc sulfate
Zinc sulfide
Zinc sulfide (ZnS) — properties, structure and uses
Zirconium
Zyklon B
Zyklon B: hydrogen cyanide fumigant and its historical use