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Chimica
A branch of physical science that is concerned with the study of matter and energy and how they interact.
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allume di cromo
Chimica; Chimica inorganica
KCr(SO 4 ) 2 _12H 2 O An alum obtained as purple crystals and used as a mordant, in tanning, and in photography in the fixing bath. Also known as potassium chromium sulfate.
acido molibdico
Chimica; Chimica inorganica
Any acid derived from molybdenum trioxide, especially the simplest acid H 2 MoO 4 , obtained as white crystals.
acido cromico
Chimica; Chimica inorganica
H 2 CrO 4 The hydrate of CrO 3 ; exists only as salts or in solution.
carbonato d'argento
Chimica; Chimica inorganica
Ag 2 CO 3 Yellowish, light-sensitive crystals; insoluble in water and alcohol, soluble in alkalies and acids; decomposes at 220_C; used as a reagent.
fluoruro di zinco
Chimica; Chimica inorganica
ZnF 2 A toxic white powder that is slightly soluble in water and melts at 872_C; used in enamels, ceramic glazes, and galvanizing.
sale complesso
Chimica; Chimica inorganica
A class of salts in which there are no detectable quantities of each of the metal ions existing in solution; an example is K 3 Fe(CN) 6 , which in solution has K+ but no Fe 3 + ...
solfato di mercurio
Chimica; Chimica inorganica
HgSO 4 A toxic, white, crystalline powder, soluble in acids; used in medicine, as a catalyst, and for galvanic batteries. Also known as mercury persulfate; mercury sulfate.
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