why are anhydrides so reactive?
316264
Anhydrides are less stable because the donation of electrons to one carbonyl group is in competition with the donation of electrons to the second carbonyl group. Thus, in comparison to esters, where the oxygen atom need only stabilize one carbonyl group, anhydrides are more reactive than esters.
1040845
The elements of lower valency are more reactive than those which have more valency. Metals with a big atomic size and non- metals with a small atomic size are more active than others. In a group, the reactivity of metals increases from top to bottom and that of non- metals decreases from top to bottom.
840401
A dehydration reaction is a chemical reaction between two compounds where one of the products is water. For example, two monomers may react where a hydrogen (H) from one monomer binds to a hydroxyl group (OH) from the other monomer to form a dimer and a water molecule (H2O).
88455
Hydrous compounds are chemical compounds that are composed of water molecules in their structure as a constituent. Anhydrous compounds are chemical compounds that have no water molecules in the chemical structure.
264822
Acetic anhydride dissolves in water to approximately 2.6% by weight. Aqueous solutions have limited stability because, like most acid anhydrides, acetic anhydride hydrolyses to give carboxylic acids. In this case, acetic acid is formed, this reaction product being fully water miscible: (CH3CO)2O + H2O → 2 CH3CO2H.
358295
The group 1 elements are all soft, reactive metals with low melting points. They react with water to produce an alkaline metal hydroxide solution and hydrogen. Reactivity increases down the group.
1332907
The dinitrogen molecule is so unreactive, so inert, that it is commonly used as an inert gas to blanket inorganic reactions, and prevent the ingress of oxygen and water. The lack of reactivity stems from the strength and stability of the N≡N bond.
760010
Cesium and francium are the most reactive elements in this group. Alkali metals can explode if they are exposed to water.
340149
Asseration: Liquid `HF` is used as non-aqueous solvent and many acid-base reactions occur in this solvent system. Reason: Liquid `HF` undergoes self ionisation.
1436191
So the molecules are less able to solvate anions (nucleophiles). The nucleophiles are almost unsolvated, so it is much easier for them to attack the substrate. Nucleophiles are more nucleophilic in aprotic solvents. So, SN2 reactions "prefer" aprotic solvents.
1193332
Halogens are highly reactive because they readily gain an electron to fill their outermost shell. Alkali metals are highly reactive because they readily lose the single electron in their outermost shell.
966593
Hydrogen gas (H2) is lower than lead in the reactive series and there might be a slow reaction under heat. But Hydrogen in water (H2O) is in a stable compound that only reacts with lead when the water is converted to steam, and then very slowly.
683852
Because NH3 is an excellent leaving group - even better than H20. Another way to think about it is that good leaving groups are weak Lewis bases.
350065
Anhydrous powdered Rb2S pyrophoric in dry air. It is readily soluble in water (the strong hydrolysis of anion). Reactive, oxidized in moist air. Decomposed by strong acids.
879847
Unsaturated hydrocarbons such as alkenes and alkynes are much more reactive than the parent alkanes. They react rapidly with bromine, for example, to add a Br2 molecule across the C=C double bond. ... When it is mixed with an alkene or alkyne, the color of Br2 rapidly disappears.
16707
why are polyatomic ions highly reactive. ... Polyatomic ions have group of two or more elements combined with some charges. Always charged ions are more reactive than neutral one.
1342636
Triple bonds are more reactive than Double bonds . Triple bonds are made of sideways overlapping of p orbitals. This sideways overlapping is weak and can be easily broken by addition reactions. Double bonds have lesser number of pi electrons , relatively more stable than triple bonds.