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Hydrated chromium(III) sulfate, Cr 2 (SO 4) 3 ·18H 2 O, (CAS #13520-66-6) is a violet solid that readily dissolves in water to give the metal aquo complex, [Cr(H 2 O) 6] 3+. The formula of this compound can be written more descriptively as [Cr(H 2 O) 6 ] 2 (SO 4 ) 3 ·6H 2 O. Six of the eighteen water molecules in this formula unit are water ...
Chromium(II) sulfate is an inorganic compound with the chemical formula Cr S O 4. It often comes as hydrates CrSO 4 ·nH 2 O. Several hydrated salts are known. The pentahydrate CrSO 4 ·5H 2 O is a blue solid that dissolves readily in water. Solutions of chromium(II) are easily oxidized by air to Cr(III) species.
KCr(SO 4) 2 Molar mass: 283.220 g/mol Appearance dark purple needles or greyish-brown powder when anhydrous Density: 1.83 g cm −3: Melting point: 89 °C (192 °F; 362 K) Boiling point: 400 °C (752 °F; 673 K)
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Chromium(III) sulfide is the inorganic compound with the formula Cr 2 S 3. It is a brown-black solid. It is a brown-black solid. Chromium sulfides are usually nonstoichiometric compounds , with formulas ranging from CrS to Cr 0.67 S (corresponding to Cr 2 S 3 ).
Specifically, scientists found that people over the age of 40 could live an extra 5.3 years if they were as active as the top 25 percent of the population. In terms of exercise, the most active ...
Between December 2013 and December 2016, the national uninsured rate fell from 17.3 percent to 10.8 percent. The decrease is much greater in states that expanded Medicaid, and the gap between the top and bottom states has grown.