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Date: 26-12-2018
765
Date: 30-3-2019
1402
Date: 28-10-2018
1007
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Reading the following reactions, figure out and notice the change of the oxidation state of S in the reactants and products. Common oxidation states of sulfur are -2, 0, +4, and +6. Sulfur (brimstone, stone that burns) reacts with O2 giving a blue flame (Figure 1.1):
SO2 is produced whenever metal sulfide is oxidized. It is recovered and oxidized further to give SO3, for production of H2SO4. SO2 reacts with H2S to form H2O and S.
Sulfur reacts with sulfite ions in solution to form thiosulfate,
but the reaction is reversed in an acidic solution.
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تفوقت في الاختبار على الجميع.. فاكهة "خارقة" في عالم التغذية
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أمين عام أوبك: النفط الخام والغاز الطبيعي "هبة من الله"
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قسم شؤون المعارف ينظم دورة عن آليات عمل الفهارس الفنية للموسوعات والكتب لملاكاته
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