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Melting point: High, since melting means breaking covalent bonds (rather than merely overcoming weaker intermolecular forces). [ 5 ] Solid-phase electrical conductivity : Variable, [ 6 ] depending on the nature of the bonding: network solids in which all electrons are used for sigma bonds (e.g. diamond, quartz) are poor conductors, as there are ...
Like other chlorosilanes or silanes, silicon tetrachloride reacts readily with water: . SiCl 4 + 2 H 2 O → SiO 2 + 4 HCl. The reaction can be noticed on exposure of the liquid to air, as SiCl 4 vapour produces fumes as it reacts with moisture to give a cloud-like aerosol of silica and hydrochloric acid. [6]
Coventry (short story) Robert A. Heinlein: Analog Science Fiction: 1940 Critical Factor: Hal Clement: Star Science Fiction Stories No.2: 1953 Critical Mass (Arthur C. Clarke short story) Arthur C. Clarke: Lilliput: 1949 Crouch End (short story) Stephen King: Cthulhu Mythos anthology: 1980 Crusade (short story) Arthur C. Clarke: The Wind from ...
"The Story to End All Stories for Harlan Ellison’s Anthology ''Dangerous Visions''" "The Electric Ant" "Cadbury, the Beaver Who Lacked" "A Little Something for Us Tempunauts" "The Pre-persons" "The Eye of the Sibyl" "The Day Mr. Computer Fell out of its Tree" "The Exit Door Leads In" "Chains of Air, Web of Aether" "Strange Memories of Death"
In chemistry, a formula unit is the smallest unit of a non-molecular substance, such as an ionic compound, covalent network solid, or metal. [1] [2] It can also refer to the chemical formula for that unit. Those structures do not consist of discrete molecules, and so for them, the term formula unit is used.
The stories are autobiographical episodes based on the author's experiences as a Jewish-Italian doctoral-level chemist under the Fascist regime in Italy and afterwards. They include various themes that follow a chronological sequence: his ancestry; his study of chemistry and practising the profession in wartime Italy; a pair of imaginative tales he wrote at that time, [2] and his subsequent ...
"The Answer" is a science fiction short story by American writer H. Beam Piper. It is not a part of either Piper’s Terro-Human Future History series nor his Paratime series. It made its first appearance in the December 1959 issue of Fantastic Universe Science Fiction .
Babel II (short story) Baby, You Were Great; Badass Moms in the Zombie Apocalypse; Bankubabur Bandhu; Be My Guest (short story) Beachworld; The Beast that Shouted Love at the Heart of the World (short story) Bicycle Repairman; The Bitter End (short story) Black Box (short story) Black Destroyer; The Black Pits of Luna; Black Sheep Astray; BLIT ...