The Elements of chemistryH. Holt, 1887 - 272 páginas |
Términos y frases comunes
acetic acid acts alcohol aluminium ammonia ammonium apparatus arsenic atomic weights boiling bottle bromine burning calcium carbonate called carbon dioxide caustic potash caustic soda charcoal chemical changes chemistry 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 heated hydrochloric acid hydrogen and oxygen hydroxide insoluble iodide iodine iron known large number lead light lime liquid magnesium 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
Pasajes populares
Página 265 - The principal objects of the series are to supply the lack — in some subjects very great — of authoritative books whose principles are, so far as practicable, illustrated by familiar American facts, and also to supply the other lack that the advance of Science perennially creates, of text-books which at least do not contradict the latest generalizations.
Página 265 - 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 265 - ... intelligible to the general reader, it is accurate and sufficiently minute in details to meet the requirements of students who are not making human anatomy and physiology subjects of special advanced study. The regular editions of the book contain an appendix on Reproduction and Development. Copies without this will be sent when specially ordered. From the CHICAGO TRIBUNE: " The reader who follows him through to the end of the book will be better informed on the subject of modern physiology in...
Página 267 - To facilitate its use by students of different grades, the subject-matter is divided into two classes, distinguished by the size of the type. The portions in large type form a complete course for the use of those who desire only such a general knowledge of the subject as can be acquired without the application of advanced mathematics.
Página 6 - 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 55 - 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 55 - ... action of the electric current; (8) water can be made by passing hydrogen over heated copper oxide; (9) by weighing the copper oxide before and after the experiment, and determining the weight of the water formed, the proportion of water which consists of oxygen is found to be eight ninths. All these facts taken together prove that the composition of water is what it has been stated to be. Now, using the accepted combining weights of hydrogen and oxygen, viz., 1 and 16, — the simplest formula...
Página 270 - Trades' unions, Strikes, Bimetallism, and Protection." — The Boston Advertiser. Briefer Course. I2mo. 402 pp. The demand for a briefer manual by the same author for the use of schools in which only a short time can be given to the subject has led to the publication of the present volume. The work of abridgment has been effected mainly through excision, although some structural changes have been made, notably in the parts relating to distribution and consumption. From RICHARD T. ELY. Professor in...
Página 266 - ... 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.