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Hydrazine is an inorganic compound with the chemical formula N 2 H 4.It is a simple pnictogen hydride, and is a colourless flammable liquid with an ammonia-like odour.Hydrazine is highly hazardous unless handled in solution as, for example, hydrazine hydrate (N 2 H 4 ·xH 2 O).
Bases are proton acceptors; a base will receive a hydrogen ion from water, H 2 O, and the remaining H + concentration in the solution determines pH. A weak base will have a higher H + concentration than a stronger base because it is less completely protonated than a stronger base and, therefore, more hydrogen ions remain in its solution.
Other effects of hydrogen bonding are a high dielectric constant as well as low values of density, viscosity, and electrical conductivity. Like water, it is an excellent and often-used ionising solvent. [4] Over twenty other hydrides of nitrogen are known, the most important being hydrazine (N 2 H 4) and hydrogen azide (HN 3).
Hydrazines (R 2 N−NR 2) are a class of chemical compounds with two nitrogen atoms linked via a covalent bond and which carry from one up to four alkyl or aryl substituents. . Hydrazines can be considered as derivatives of the inorganic hydrazine (H 2 N−NH 2), in which one or more hydrogen atoms have been replaced by hydrocarbon grou
The alkaline earth metals (Be, Mg, Ca, Sr, Ba, and Ra) are the second most reactive metals in the periodic table, and, like the Group 1 metals, have increasing reactivity with increasing numbers of energy levels. Beryllium (Be) is the only alkaline earth metal that does not react with water or steam, even if the metal is heated red hot. [9]
This page contains tables of azeotrope data for various binary and ternary mixtures of solvents. The data include the composition of a mixture by weight (in binary azeotropes, when only one fraction is given, it is the fraction of the second component), the boiling point (b.p.) of a component, the boiling point of a mixture, and the specific gravity of the mixture.
PH 3 (g) -0.111 3 [10] C CO 2 (g) + 2 H + + 2 e −: ⇌ HCOOH(aq) -0.11 2 Se Se(s) + 2 H + + 2 e −: ⇌ H 2 Se (g) -0.11 2 [6]: 790 C CO 2 (g) + 2 H + + 2 e −: ⇌ CO(g) + H 2 O-0.11 2 Sn: α-SnO(s) + 2 H + + 2 e −: ⇌: Sn(s) + H 2 O-0.104: 2 [6]: 788 Cu Cu(NH 3) + 2 + e −: ⇌ Cu(s) + 2 NH 3 (aq) -0.1 1 [13] Nb: Nb 2 O 5 (s) + 10 H ...
HSAB is an acronym for "hard and soft (Lewis) acids and bases".HSAB is widely used in chemistry for explaining the stability of compounds, reaction mechanisms and pathways. It assigns the terms 'hard' or 'soft', and 'acid' or 'base' to chemical species.