A catechism on chemistry, including heat, magnetism and electricityLongman, Brown, Green, Longmans, & Roberts, 1858 - 81 ページ |
他の版 - すべて表示
多く使われている語句
alkali ammonia animal antimony atmosphere attraction battery bodies burning called carbonic acid charcoal chemical action CHEMISTRY chlorate chloric acid chlorine colour combination combustion condition conductor consists copper crops cylinder decomposed degree diamagnetic earth effect elec electrical action electrified electro-magnet electrometer elementary elements equivalent evaporated flame fluid friction fusible gases glass heat hydrogen induction inorganic insulated iodine JOHN F. W. HERSCHEL Leyden jar light lime limestone liquid M'LEOD'S machine magnetic malleable manganese manure matter melting mercury metal mixed mixture needle nitric acid nitrogen nourishment obtained oil of vitriol oxide oxygen particles phosphoric acid phosphorus piece plants plate platinum polarity portion potash potassa potassium principal produced properties proportion quantity salt salt ends shell-lac silica silver soda soft iron soil solid soluble south pole substances sulphate sulphuric acid TATE'S temperature tricity vapour vegetable vessel voltaic wire zinc
人気のある引用
25 ページ - It is better, on this account, in graduating the bottle, to make two scratches as represented in the drawing, one at the top and the other at the bottom of the curve : this prevents any future mistake.
67 ページ - This oxide is formed when sodium is burned in dry air or oxygen. It is a white powder, which attracts moisture and carbonic acid from the air. When...
7 ページ - If equal weights of water at 32° (0°C) and water at 174° (78°-8C) be mixed, the temperature of the mixture will be the mean of the two temperatures, or 103° (39°-4C).
58 ページ - ... by certain fixed and definite laws; and, for the consideration of metallurgic operations, it may suffice to elucidate the two leading ones. The first is, that all chemical compounds are perfectly definite in their nature and constitution, and that the ratio of their elements is constant. The second, that the combining quantity of a compound is the sum of the combining quantity of its constituents. Now as to the first law. The combining quantities of all simple bodies may be expressed by proportional...
28 ページ - The copper of the first cup is connected with the zinc of the second, the copper of the second with the zinc of the third, and so to the end of the series.
58 ページ - ... relation established by the hand of Nature between the specific gravity of a body in the gaseous state and its chemical equivalent ; — a relation of such a kind that quantities by weight of the various gases expressed by their equivalents, or in other words quantities by weight which combine, occupy under similar circumstances of pressure and temperature either equal volumes or volumes bearing a simple proportion to each other.