H
Hydride
AllChemicals — The Online Chemical Glossary | https://allchemicals.info/chemical/501-hydride
What is Hydride?
A hydride is a binary compound of hydrogen with another element, typically a metal. Ionic hydrides (e.g., NaH, CaH₂) contain the hydride ion (H⁻) and are strong reducing agents and bases. Covalent hydrides include compounds like water (H₂O), ammonia (NH₃), and silane (SiH₄). Transition metal hydrides are important in catalysis and hydrogen storage.
Key Facts
Term
Hydride
Index
All "H" terms
Frequently Asked Questions
A hydride is a binary compound of hydrogen with another element, typically a metal. Ionic hydrides (e.g., NaH, CaH₂) contain the hydride ion (H⁻) and are strong reducing agents and bases. Covalent hydrides include compounds like water (H₂O), ammonia (NH₃), and silane (SiH₄). Transition metal hydrides are important in catalysis and hydrogen storage.
More "H" Terms
Haber Process
N₂ + 3H₂ ⇌ 2NH₃ | ΔH = −92 kJ/mol
Hafnium
Hf
Half Cell
Half Life
Half-Cell
E = E° − (RT/nF)lnQ
Half-Life
A(t) = A₀e^(−λt); t½ = ln2/λ
Half-Reaction
Halide
X⁻ (e.g., F⁻, Cl⁻, Br⁻, I⁻)
Halogen
F₂, Cl₂, Br₂, I₂, At; Group 17; ns²np⁵ valence configuration
Halogenation
C-X + Cl₂/Br₂ (hv or AlCl₃) → C-X(halogen); EAS or radical pathway
Halogens
Hard Acid
Hard acid: small, highly charged, low polarisability (e.g., H⁺, Mg²⁺, Al³⁺)
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