The Chemistry of the Non-metals: An Elementary Textbook for Schools and CollegesSnow & Farnham, Printers, 1897 - 197 pàgines |
Frases i termes més freqüents
absorbed affinity ammonia ammonia gas ammonium amount anhydride animal antimony apparatus argon arsenic arsenious oxide atmospheric air Atomic symbol Atomic weight binary bleaching boiling Boron bromine burning calcium called carbon compounds carbon dioxide charcoal Chem chemical change chemist chemistry chlorine gas coal color combination combustion compounds containing condensed copper crystals Data for Reference decomposed Density dissolves earth elementary substances exists flame fluorine gaseous gases glass H₂ heat hydrochloric acid hydrofluoric acid hydrogen hydrogen gas hydroxide illuminating gas iodide iodine iron known liberated liquid manufacture matters mercury metals method mineral mixture molecule nitrate nitric acid non-metals ordinary temperatures oxide oxygen oxygen gas ozone phos phosphate phosphorus plants platinum portion potassium prepared produced Properties Qualitative Analysis quantities radicle Report Book-for retorts salt selenium silicates silicon dioxide silicon tetrafluoride sodium solid solution sulphate sulphide sulphur dioxide sulphuric acid Tellurium tube uncombined vapor vegetable vessel volume zinc
Passatges populars
Pàgina 72 - Remove for a single summer-night the aqueous vapour from the air which overspreads this country, and you would assuredly destroy every plant capable of being destroyed by a freezing temperature. The warmth of our fields and gardens would pour itself unrequited into space, and the sun -would rise upon an island held fast in the iron grip of frost.
Pàgina 72 - This aqueous vapour is a blanket more necessary to the vegetable life of England than clothing is to man. Remove for a single summer-night the aqueous vapour from the air which overspreads this country, and you would assuredly destroy every plant capable of being destroyed by a freezing temperature.
Pàgina 78 - Some sulphur at the lower portion of the heap is then set 011 fire at several points. The heat from the sulphur that burns melts other portions of it, which then trickle down the spaces between the masses of rock. This melted material, finding the bottom of the pile, runs freely to the lowest portion of the platform, then through the perforations and out into wooden? boxes placed to receive it. The heap burns for two or three weeks, at the end of which time the operation is finished. When the mass...
Pàgina 72 - Aqueous vapor is a blanket more necessary to the vegetable life of England than clothing is to man. Remove for a single night the aqueous vapor from the air which overspreads this country, and every plant capable of being destroyed by a freezing temperature would perish. The warmth of our fields and gardens would pour itself unrequited into space, and the sun would rise upon an island held fast in the iron grip of frost.
Pàgina 8 - ... cases at least, the symbol must contain an additional distinguishing letter: Accordingly C indicates one atom of Carbon ; Ca " " Calcium; Cb " " Columbium; Cd " " Cadmium; Ce " " Cerium ; Cl " " Chlorine; Co " " Cobalt; Cr " " Chromium ; Cs " " Caesium; Cu " " Copper (Latin word, cuprum}. It also appears that in the case of metals, like iron and copper, known to the ancients, the symbols used are derived from the Latin names. The use of these symbols made from letters — and therefore...
Pàgina 130 - ... could be reduced to nitrous acid, or whether there was not a part of a different nature from the rest, which would refuse to undergo that change.
Pàgina 67 - ... inappreciable volume as compared with the volume of the gases which combine, the decrease in volume represents the total volume of hydrogen and oxygen which have combined. Now, if the experiment be performed with the two gases in different proportions, it will be found that only when they are mixed in the proportion of two volumes of hydrogen and one volume of oxygen do they completely disappear in the explosion. If vhere is a larger proportion of hydrogen present, the excess is left over.