An Introduction to the study of chemistryH. Holt, 1906 - 516 σελίδες |
Συχνά εμφανιζόμενοι όροι και φράσεις
acid acts action alcohol aluminium ammonia ammonium chloride ammonium sulphide arsenic atomic weight atoms of hydrogen barium blowpipe boiling bromine burning calcium carbonate called carbon dioxide caustic potash caustic soda charcoal chemical changes chloric acid chromate color colorless combines with oxygen composition compounds consists containing converted copper crystals decomposed decomposition dilute solution dissolves elements equation evaporating Experiment ferric ferrous Filter flame flask formation formed formula gases glass grams heated hydro hydrochloric acid hydrogen and oxygen hydrogen sulphide insoluble iodine iron known lead lime liquid magnesium manganese dioxide melts mercury metals mixture molecule nitrate nitric acid nitrogen obtained occurs in nature oxide oxygen passed phosphate phosphorus piece platinum potassium chlorate precipitate prepared properties proportion quantity reaction represented salt silicate silver sodium carbonate sodium chloride sodium hydroxide soluble in water stances substances sulphate sulphur dioxide sulphuric acid taining takes place test-tube tion treated tube vessel volume zinc
Δημοφιλή αποσπάσματα
Σελίδα 15 - A Arsenic As Barium Ba Bismuth Bi Boron B Bromine Br Cadmium Cd Caesium Cs Calcium Ca Carbon C Cerium Ce Chlorine Cl Chromium Cr Cobalt Co Columbium Cb Copper Cu...
Σελίδα 15 - Hydrogen H Indium In Iodine I Iridium Ir Iron Fe Krypton Kr Lanthanum La Lead Pb Lithium...
Σελίδα 14 - Bi of bismuth, etc. In some cases the symbols are derived from the Latin names of the elements. Thus, the symbol for iron is Fe, from Latin ferrum; for copper, Cu, from cuprum; for mercury, Hg, from hydrargyrum, etc.
Σελίδα 227 - Avogadro's principle or hypothesis, which states that equal volumes of all gases under the same conditions of temperature and pressure contain the same number of molecules, was the extension of Dalton's Atomic Theory necessary to put the theoretical interpretation of chemistry on a solid foundation.
Σελίδα 252 - Notwithstanding the infinite number of forms assumed by solids in passing from the liquid to the solid state and when deposited from solutions, it has been shown that all can be referred to a very few systems. Usually six systems are adopted. These are : 1. THE REGULAR SYSTEM. All the crystals belonging to this system can be referred to three axes of equal length, and at right angles to one another, crossing at the centre. Examples of crystals belonging to this system are the regular octahedron and...
Σελίδα 436 - It had been decided as early as 1873 that the new standards should be made of an alloy of 90 per cent platinum and 10 per cent iridium, and that the meters should be line standards of the cross section shown in the illustration.
Σελίδα 216 - Now, as equal volumes of all gases contain the same number of molecules, if we assume that in a certain volume of hydrogen there are 100 molecules, then in the same volume of chlorine and of hydrochloric acid there are also 100 molecules. But from 1 volume containing 100 molecules of hydrogen and 1 volume containing 100 molecules of chlorine we get 2 volumes containing 200 molecules of hydrochloric acid.
Σελίδα 388 - ... to the amount of heat required to raise the temperature of the same weight of water one degree is called the Specific Heat of the given substance.
Σελίδα 53 - The temperature may be increased by mixing hydrogen and oxygen in the proportion of two volumes of the former to one of the latter, and burning it from a safety jet.