* This reaction is catalyzed by Lewis acids like anhydrous AlCl 3, FeX 3, ZnCl 2, BF 3 etc. * It is a reversible reaction and hence dealkylation is also possible under the above said conditions. * The Friedel-Crafts alkylation fails when the aromatic systems contain more powerful electron withdrawing groups than halogens (like nitro group).
When a gas stream containing SO3, H2SO4 and H2O vapor is cooled, H2SO4 vapor condenses and SO3 vapor and H2O vaporreact to form additional H2SO4. Very fine submicron mist particles are formed when the gas is cooled faster thanthe condensable vapor can be removed by mass transfer, i.e. “shock cooling”.
Reaction with oxygen and water Trends in the reactions of the elements with water, limited to Na and Mg Sodium reacts with cold water. It fizzes around on surface etc. 2 Na (s) + 2 H2O (l) 2 NaOH (aq) + H2 (g) Learn the equations Magnesium reacts very slowly with cold water to form the hydroxide but reacts more readily with steam to form the oxide Mg (s) + H2O (g) MgO (s) + H2 (g) Trends in ...
A combustion reaction is a type of redox reaction in which a combustible material combines with an oxidizer to form oxidized products and generate heat (exothermic reaction). Usually in a combustion reaction oxygen combines with another compound to form carbon dioxide and water. An example of a
Identifying Chemical Reaction Types: For the following reactions, describe the movement of atoms ON THE BACK OF THE SHEET and identify what type of reaction it is UNDER THE REACTION. Remember that it is more important for you to verbally express how the atoms are being rearranged rather than being able to identify the reaction type by name.
Substitution Reactions of Benzene and Other Aromatic Compounds. The remarkable stability of the unsaturated hydrocarbon benzene has been discussed in an earlier section.The chemical reactivity of benzene contrasts with that of the alkenes in that substitution reactions occur in preference to addition reactions, as illustrated in the following diagram (some comparable reactions of cyclohexene ...
- Covalent oxides are usually acidic (elements act as an acid when reacts with H2O) SO3 + H2O(l) -> H2SO4(aq) -> H+ + HSO4-A. Oxide A Hydroxide
A B; 2KClO3-->2KCl + 3O2: decomposition: HCl + NaOH --> NaCl + H2O: double displacement: Mg + 2 HCl --> MgCl2 + H2: single displacement: 2H2 + O2 --> 2H2O: synthesis
Atmospheric reactions, hitherto studied computationally mainly with static computations in conjunction with transition state theories, can be further described via path sampling calculations. Here we report on an exploratory study of the formic acid catalysed hydrolysis of SO3 to produce H2SO4.