The elements of chemistryH. Holt, 1886 - 272 páginas |
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Términos y frases comunes
acetic acid acts alcohol aluminium ammonia ammonium arsenic atomic weights boiling bottle bromine burning calcium carbonate called carbon dioxide caustic potash caustic soda charcoal chemical changes chloric acid chlorine color colorless combine with oxygen combining weight combustion common salt composition compounds containing copper crystals decomposed decomposition dilute dissolves distillation elements EXPERIMENT fermentation ferrous flame flask formed found in nature gases give glass grams H₂O H₂SO heated hydrochloric acid hydrogen and oxygen hydroxide insoluble iodide iodine iron known large number lead light lime liquid magnesium manganese manufacture mercury mercury oxide metal mixture nitric acid nitrogen obtained occur in nature odor ordinary temperatures oxide oxygen passed phosphorus piece platinum potassium chlorate potassium nitrate properties proportions quantity reaction shown in Fig silicate silver sodium carbonate sodium chloride sodium nitrate soluble solution substances sulphate sulphide sulphur dioxide sulphuric acid takes place test-tube tion treated tube vapor vessel zinc
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Página 271 - Science perennially creates, of text-books which at least do not contradict the latest generalizations. The scheme systematically outlines the field of Science, as the term is usually employed with reference to general education, and includes ADVANCED COURSES for maturer college students, BRIEFER COURSES for beginners in school or college, and ELEMENTARY COURSES for the youngest classes. The Briefer Courses are not mere abridgments of the larger works, but, with perhaps a single exception, are much...
Página 124 - Avogadro's hypothesis that equal volumes of all gases under the same conditions of temperature and pressure contain the same number of molecules...
Página 12 - Very frequently the first letter of the name of the element is used as the symbol. If the names of two or more elements begin with the same letter, this letter is used, but some other letter of the name is added.
Página 61 - We have thus learned that (1) water can be decomposed into hydrogen and oxygen by means of an electric current; (2) the gases are obtained in the proportion of eight parts by weight of oxygen to one part by weight of hydrogen, or one volume of oxygen to two volumes of hydrogen; (3) when hydrogen is burned water is formed...
Página 272 - ... useful to know, which the pupil is to learn by heart, like the multiplication-table. With this in view, the author attempts to exhibit, so far as is practicable in an elementary treatise, the ascertained facts of Physiology as illustrations of,- or deductions from, the two cardinal principles by which it, as a department of modern science, is controlled, — namely, the doctrine of the " Conservation of Energy" and that of the " Physiological Division of Labor.